The question comes up sooner or later in any project: is it worth building sustainably?

Sustainable construction is no longer an added attribute. Done right, it sits at the center of the decision because it addresses several fronts at once: it reduces risk, improves building performance, and responds to external pressures—regulatory, financing access, and end-user—that keep growing.

The legitimate questions are rarely about the concept but about how it plays out in practice without complicating the project.

What is sustainable construction?

Sustainable construction is a way of designing, building, and operating buildings with a holistic approach to the efficient use of resources and people’s wellbeing.

From the earliest design decisions, variables such as energy consumption, water use, material selection, and indoor environmental quality are taken into account.

All of them are part of a single system geared toward better performance over time.

In practice, it translates into buildings that optimize resources, reduce their environmental impact, and offer healthier, more functional spaces for those who use them. It is a way of building with a long-term vision.

What does building sustainably involve?

Talking about sustainable construction means understanding the building as a complete system, where each decision influences the others and demands a deliberate approach.

From the project’s orientation to the selection of materials and the way it will be operated for years: energy, water, indoor comfort, and maintenance are part of the same whole.

When sustainability is integrated from the start, it becomes part of the project’s logic, and the result is coherent solutions with consistent performance over time. Incorporating it at the end usually means costlier adjustments with narrower reach.

Why does it carry more weight today than before?

For much of modern construction, sustainability was approached mainly through environmental impact, but today it is also understood as a strategic and financial factor.

An efficient building optimizes resources, reduces operating costs—and at times investment costs—and holds its value over time. This is an effect already visible across entire real estate portfolios, where environmental performance influences valuation and appeal to investors.

Added to this are market conditions and regulatory evolution. More and more standards are becoming part of what is expected in a well-developed project, which opens opportunities for those who incorporate them from the start and adds friction for those who leave them for later.

Is sustainable construction more expensive?

The upfront investment varies depending on the strategies chosen. Some do not increase cost; others involve a premium that is recovered during operation.

The relevant point is performance over time. A well-designed building optimizes energy and water consumption, reduces maintenance needs, and operates more efficiently.

In many projects, this vision makes it possible to recover the investment within competitive timeframes and even to reduce costs from the design stage, when decisions are made early rather than as later corrections.

How does it impact people’s wellbeing?

A building’s performance is also reflected in the experience of those who occupy it.

Air quality, natural light, thermal comfort, and acoustics shape everyday life. These factors are associated with greater productivity, better health, and a better perception of the space, and they are felt immediately in daily use.

In office, retail, or residential assets, that wellbeing translates into occupant retention and into a value argument in the market.

Can an already-built building be made sustainable?

Yes. Many buildings in operation have high potential for improvement.

Upgrading systems, optimizing consumption, and integrating renewable energy make it possible to raise their performance without new construction. There are also certifications focused specifically on the operational phase, which recognize and structure these improvements.

The first step is usually a diagnostic that identifies where the greatest savings opportunities are and at what cost.

What role does environmental consulting play in your project?

The work of an environmental consultancy is to structure strategic decisions throughout the project.

It ranges from assessing feasibility and defining objectives to coordinating certifications, modeling, and technical processes. The goal is to optimize the building’s performance at every stage and to translate technical requirements into clear decisions for the project team. You can explore the scope of this support in our services.

When the process is managed correctly, the results are reflected in efficiency, value, and operation.

Building with a long-term vision

Sustainable construction is not an added expense or a passing trend; it is a more precise way of developing projects: it reduces risk, improves performance, and strengthens the asset’s value.

The decision is rarely “sustainable or not”; it is how much, with which priorities, and with which tools. To go deeper into the certifications and technical processes that make that performance possible—LEED, EDGE, energy modeling, or commissioning—continue with our article on certifications and high-performance tools (internal link; see appendix).

At THREE, we support developers, owners, and investors in incorporating sustainability as a business strategy, with decisions backed by data.

With special contribution from: Valeria Padilla, Senior Environmental Consultant – THREE Environmental Consulting

As ESG strategies evolve, large real estate developers and operators face a new reality: scaling sustainability without unnecessary time or cost increases. The challenge lies in certifying multiple buildings under the same performance standards, without each project requiring the repetition of processes independently.

In this context, LEED Volume offers an alternative for organizations seeking to standardize certification strategies. More than an approach for a single project, it functions as a framework that allows for building a common foundation and replicating it more efficiently in future projects.

To understand how it works in practice and what it means for those who manage or develop large-scale real estate portfolios, let’s review the key points of implementing this program in developments in Mexico.

What is LEED Volume and how does it differ from traditional certification?

LEED is the world’s most recognized sustainable building certification system, administered by the U.S. Green Building Council (USGBC). In its standard form, each building is certified individually: it is registered, documented, and reviewed independently. It’s a rigorous and robust process, but without a unified strategy, replicating it project after project hinders economies of scale and its widespread implementation.

LEED Volume solves this problem. Instead of starting the LEED certification process separately, the program begins with the creation of a prototype: a strategic document that defines how the organization will implement the LEED program in all its future projects under a single framework.

So, the main difference is that, while a traditional certification focuses on an isolated project, LEED Volume establishes a scalable, overall strategy aligned with the client’s operations and needs, facilitating documentation and implementation and allowing for more efficient replication across different projects.

How does the LEED Volume program work in practice?

One of the key elements within the LEED Volume methodology is the development of a prototype project that serves as a starting point for standardizing the certification strategy across different projects. From there, it’s possible to incorporate lessons learned and strengthen tools, processes, and implementation criteria to make the certification path more efficient and replicable.

In our experience, beyond documentation, one of the greatest benefits of this approach is the ability to develop tools that facilitate future implementations and reduce repetitive efforts.

At THREE, we place special emphasis on automating and facilitating the use of this prototype through processes and tools that help streamline management between projects and simplify its adoption by the teams involved.

As the program progresses and the first projects demonstrate consistent implementation, the review process becomes more agile. After the certification of the first projects, GBCI implements a sampling phase that expedites future reviews and optimizes certification times.

What types of organizations are a good fit for LEED Volume?

LEED Volume is designed for organizations that develop multiple similar projects each year. It is typically most suitable for companies with a high project volume and already standardized processes, especially when they work repeatedly with the same contractors and teams.

In terms of typologies, the program can be applied across different sectors, including industrial, office, commercial, and mixed-use developments. The key is that projects share a similar scope, comparable systems, and consistent general construction conditions within the same project typology.

We have observed that, in Mexico and Latin America, the sector currently leading LEED Volume programs is the industrial sector, due to the high pace of development and the level of standardization already present in many projects. Developers of logistics and industrial facilities that build under repeatable specifications for different markets or clients represent one of the clearest and most efficient use cases for implementing the program.

Three strategic benefits of the LEED Volume program

1. Significant reduction in certification time and costs

The most tangible benefit of LEED Volume is economic. Under the individual certification model, each project pays its own registration fee plus a review fee that varies depending on the size of the building.

With LEED Volume, each project pays a single fixed fee, regardless of size.

This is combined with savings in documentation time and effort, since having pre-approved calculators, templates, and processes eliminates much of the repetitive work that would normally consume weeks per project.

2. Freezes the LEED version for future projects

According to the U.S. Green Building Council (USGBC), LEED certification “seeks to transform the market by creating environmentally responsible, healthy, profitable, and prosperous environments.” As part of this evolution, LEED rating systems are periodically updated, incorporating new requirements and registration deadlines.

In this context, LEED Volume represents a strategic advantage for developers with repetitive portfolios, as it allows them to maintain a specific LEED version for an approved prototype.

This becomes especially relevant in light of the current USGBC deadlines: although new LEED Volume v4 and v4.1 prototypes must be registered before June 30, 2027, projects using an existing prototype may continue registering until June 30, 2030, providing operational continuity and optimization in certification efforts.

3. Operational efficiency as a competitive advantage

The most valuable aspect of LEED Volume is the efficiency it brings to processes by optimizing and standardizing both the design and construction phases, as well as the certification management of projects.

When tools, guidelines, and teams operate under the same framework, organizations can respond more quickly and maintain consistency across projects without proportionally increasing operational workload.

Another advantage of LEED Volume is the ability to incorporate lessons learned and refine tools as project needs and sustainability strategies evolve.

Could your portfolio qualify for LEED Volume?

Sustainability in the built environment has become a market requirement, a risk variable for investors, and a differentiating factor in the competition for tenants and investment.

At THREE, we have observed that for companies with large portfolios and repeatable processes, one of the biggest challenges is often not the intention to certify but rather maintaining consistency and efficiency as project volume increases.

LEED Volume transforms sustainability from a one-time project initiative into an opportunity to create a scalable, more consistent process aligned with long-term ESG goals.

If your organization develops multiple projects each year and you would like to explore whether LEED Volume is the right strategy for you, we can help evaluate feasibility, structure the prototype, and support you throughout the certification process.

Contact us for an initial consultation.

References and additional resources

• U.S. Green Building Council – LEED Volume Program: usgbc.org/leed/volume

If your project is aiming for LEED certification before the end of the year, time is already ticking. GBCI (Green Business Certification Inc.) has published the official review deadlines.

Understanding these timelines is critically important, as they could impact your organization’s 2026 commitments.

Why do LEED review deadlines exist and how do they impact your project?

LEED review deadlines set the pace for the entire certification process. They define when your project will be evaluated and, consequently, the likelihood of obtaining certification within a specific timeframe.

These timelines are established by Green Business Certification Inc. to manage the global review workload and ensure that projects move forward within clearly defined windows.

Meeting these deadlines allows your project to achieve certification within 2026 and maximize its benefits at the right time, including access to green financing, alignment with ESG goals, and strengthening the asset’s market positioning.

Additionally, it helps control costs, sustain the commercial strategy, and keep investment objectives aligned.

LEED certification deadlines for 2026

For projects aiming to close the year with LEED certification, GBCI has defined a review schedule that enables more accurate planning.

These deadlines apply to all LEED projects, including LEED BD+C, LEED ID+C, LEED O+M, LEED for Cities and Communities, LEED Zero, and LEED Residential.

All listed dates assume that applications have been submitted and the corresponding review fees have been paid before 9:00 a.m. (Eastern Time).

Traditional track – standard reviews

This schedule already accounts for non-working days, including September 7, November 11, November 26 and 27, as well as the period from December 25 through year-end.

Expedited track – fast-track reviews

Expedited track – fast-track reviews

If additional time is needed, there is an option for expedited review, which involves an additional cost of approximately $12,000 USD. This allows projects to be submitted for review at later dates than the standard deadlines.

Key considerations for LEED certification deadlines in 2026

Before planning your certification, there are important factors that can directly impact your ability to meet the established timelines:

1. Not all projects follow the same schedule

The published deadlines apply to systems such as LEED for Building Design and Construction (LEED BD+C), LEED for Interior Design and Construction (LEED ID+C), LEED for Operations and Maintenance (LEED O+M, both initial certification and recertification), LEED for Cities and Communities, LEED Zero, and LEED Residential.

However, they do not apply to programs such as LEED Volume or batch submissions of multiple projects, which follow different processes.

2. Clarifications can affect your schedule

These timelines assume a straightforward review process without additional comments or clarifications. If clarifications are required, a response period of up to 25 business days is typically assumed, which can impact target dates.

3. Expedited review does not guarantee certification

Expedited review, while reducing evaluation time, does not guarantee certification. Projects must still meet all requirements and credits. Additionally, the dates provided in schedules are estimates and should be treated as references, not guarantees.

For this reason, it is recommended to plan based on standard timelines, using expedited review as a strategic option in case of adjustments or unforeseen circumstances.

4. Submission timing also matters

Deadlines assume that both the application and payment are completed before 9:00 a.m. (Eastern Time) on the specified date. Submissions made after that time may automatically move to the next review cycle.

5. Certification depends on the project phase

Design review can be completed before or during construction. However, final certification is only granted once the construction review has been completed.

Strategy: how to prepare your project to meet deadlines

Early credit audit

Evaluate pending credits in advance—at least three months before your target deadline. Identify those that require the most attention and define action plans or viable alternatives to ensure compliance.

Proactive communication with GBCI

If your team needs to achieve a specific milestone, GBCI recommends communicating your requirements as early as possible.

Remember that expedited review is available as an option, although it involves an additional cost and should be used strategically to meet key deadlines.

Internal pre-submission review

Conducting a structured internal review is critical, ideally supported by a specialized consultancy such as THREE. This helps identify inconsistencies, incomplete documentation, and calculation errors before submission, reducing review comments and avoiding timeline extensions.

LEED certification is a business decision

In recent years—particularly since 2022—ESG (Environmental, Social, and Governance) commitments have gained significant importance in decision-making, driven by increasingly demanding KPIs and the value that certifications bring to the market.

In this context, LEED certification has become a validation of project performance that directly impacts value and competitiveness. It is also a commonly used indicator by developers and REITs to measure their annual environmental commitment.

With 2026 review deadlines already defined, early planning is essential to secure certification within the year. Auditing credit status, ensuring timely payments, and structuring documentation strategically will help keep the project on track, optimize resources, and avoid adjustments that could impact performance.

For teams seeking support in LEED strategy, credit management, and documentation preparation, THREE can help structure the entire process to ensure timely delivery, maximize results, and avoid missing the certification cycle.

Leave us your inoformation s and secure your certification today.

Source: U.S. Green Building Council. (n.d.). What you need to know to achieve LEED certification in 2026. https://www.usgbc.org/articles/what-you-need-know-achieve-leed-certification-2026

Accessibility in buildings is often approached through technical standards—minimum dimensions and diagrams that define how a space should function.

The issue is that, in practice, these do not always answer the most important question: how inclusive is a space for a real person?

The Access4you certification was developed with a different logic. It documents, with precision, how spaces are experienced by different users and makes this information publicly available in a clear and accessible way, so anyone can review it before visiting a place.

Through its digital platform,Access4you provides free access to certified accessibility information. Each profile includes precise measurements and visual evidence, addressing the needs of various user groups: wheelchair users, people with visual or hearing impairments, individuals with cognitive disabilities, older adults, families with strollers, and those who rely on assistance dogs, among others.

This approach not only promotes accessibility but also makes it visible and verifiable—turning it into a strategic asset for property owners. It enhances decision-making, strengthens transparency, and creates opportunities to reach a broader user base, ultimately increasing the value and competitiveness of the asset.

What does the Access4you certification evaluate?

Access4you assesses buildings from the perspective of multiple user groups that commonly face barriers in the built environment, including the following:

• Wheelchair users
• People with reduced mobility
• Older adults
• Families with strollers
• People with visual or hearing impairments

The process involves on-site inspections, where auditors record measurements, slopes, clearances, furniture configurations, and real-use conditions.

Each space is evaluated through highly practical questions:

• Can it be accessed independently?
• Is there enough space to maneuver?
• Are doors easy to operate?
• Is signage clear?
• Are restrooms comfortable to use?
• The result is not just a label.
• It is a detailed accessibility profile of the building.
• What types of spaces are analyzed?

During the certification process, Access4you reviews multiple key areas within a building—not just the main entrance.

The assessment typically includes:

• Parking and arrival areas
• Access points and entrances
• Horizontal and vertical circulation
• Elevators and stairways
• Restrooms
• Common areas
• Guest rooms or long-stay spaces
• Signage and user information

Each of these elements can either create barriers or enhance the accessibility experience.

That is why the certification evaluates the full user journey, not just isolated points within the project.

A first and landmark case in Latin America: JW Marriott

One of the first projects in the region to undergo this process was the JW Marriott Monterrey Valle, which became the first building in Latin America to obtain the Access4you certification.

The project is owned by Fibra Inn, a real estate investment trust with a well-established strategy in the management and development of hospitality assets, which has consistently incorporated accessibility criteria as part of its approach to quality and profitability generation within its portfolio.

The hotel assessment included access points, internal circulation, guest rooms, and common areas used by visitors.

The building features underground parking with designated accessible spaces, along with a barrier-free route connecting to the hotel via elevators.

The main entrance is accessed through a gently sloped ramp, while entrance doors are wide and equipped with motion sensors for automatic opening.

Inside the hotel, vertical circulation is primarily resolved through elevators. Emergency staircases include continuous handrails on both sides, improving safety for users with reduced mobility.

Accessible guest rooms provide sufficient maneuvering space, and bathrooms meet Access4you requirements, enabling more comfortable use for a wide range of guests.

In shared spaces—such as the lobby, restaurant, and event areas—circulation routes and restrooms were also evaluated.

Lighting conditions support lip reading, and the hotel provides an iPad at reception with information on rates and services.

Why is accessibility changing the conversation in Mexico’s real estate sector?

In Mexico, accessibility is still largely understood as an issue related to disability, primarily focused on adapting physical spaces—an approach highlighted by the National Human Rights Commission. However, this represents only part of the picture.

In recent years, accessibility has gained increasing relevance in discussions around the built environment. At the same time, there is growing awareness of its importance in everyday life, particularly in shaping cities and public spaces, helping reposition accessibility as a key element in creating more inclusive and functional environments for all.

However, there remains a gap between how accessibility is understood and how it is actually experienced. In this context, certifications like Access4you help bridge that gap by providing concrete tools to assess, improve, and communicate how accessible buildings truly are.

By documenting real user experience and making that information public, the system introduces a critical element that has often been missing: transparency.

For developers, operators, and property owners, this also represents a business opportunity. Buildings that integrate accessibility from the design stage expand their reach to a wider range of users, deliver more inclusive experiences, and strengthen their value proposition in the market.

The case of the JW Marriott Hotel Monterrey Valle shows that this approach is already taking shape in the region.

In a market that increasingly values inclusion, accessibility data is becoming an asset.

Building green is not a barrier—it’s an advantage. 

That’s the premise of the Green Finance Guide for Sustainable Buildings in Mexico, published by THREE Consultoría Medioambiental in collaboration with GBCI and PEEB. The guide aims to facilitate access to financial resources for building projects that generate positive environmental and social impacts. 

This guide is the first coordinated effort to map available green financing tools in the country, identify key stakeholders, and showcase—through real-world cases—that building responsibly and profitably is possible. 

A Guide with Purpose 

The document was created with two key goals: 

• Promote the development of green financing models that scale sustainable construction across Mexico and maximize national impact. 

• Encourage the adoption of green financial tools to boost sustainable building practices. 

In Mexico, the construction sector accounts for approximately 20% of national greenhouse gas emissions. Yet, it contributes nearly 7% of the GDP and supports around 4.5 million jobs. 

A Changing Landscape: Mexico’s Sustainable Taxonomy 

Mexico has made significant strides in defining what constitutes a sustainable economic activity. In 2023, the first version of the Mexican Sustainable Taxonomy was released—a classification system identifying sectors and activities that contribute to the country’s environmental and social objectives. This taxonomy aligns investments with commitments such as the Paris Agreement and the 2030 Agenda, providing clarity for investors and financial institutions. 

The building sector was one of five priority areas for the taxonomy, reflecting its strategic importance. According to USGBC, buildings are responsible for 37% of global energy demand and 25% of greenhouse gas (GHG) emissions, making the sector a key area for climate action. 

What Financial Tools Are Available in Mexico? 

The guide identifies and explains various mechanisms already available in the country to finance green projects, including: 

• Green loans 
• Green and sustainable bonds 
• Multilateral funds and development banks 
• Public programs and tax incentives 

In addition to describing each instrument, the guide provides links, contacts, and recommendations on how to prepare a project that meets the necessary criteria to be considered “bankable.” 

It also highlights over 50 laws and public programs related to sustainability and construction, including energy efficiency standards and fiscal incentives. 

Certifications as Financial Tools 

A key contribution of the guide is showing how environmental certifications—such as LEED or EDGE—can serve as guarantees of technical quality and environmental performance, making it easier to secure financing. 

These certifications validate a project’s sustainability credentials, support ESG reporting, and open doors to new markets. They also align directly with the criteria of Mexico’s Sustainable Taxonomy, which sets specific parameters for energy, water, circular economy, and climate resilience. 

Success Stories: Building Green Is Possible 

Today, leading real estate developers know that sustainability isn’t just good for the planet—it’s also good business. The guide backs this up with data: green buildings can reduce operating costs by up to 20%, increase property value by at least 10%, and qualify for benefits such as preferential mortgage rates. They’re also highly attractive to institutional investors focused on ESG criteria. 

A Guide to Move from Planning to Action 

The greatest value of the Green Finance Guide for Mexico lies in its pragmatic approach. It’s not just another diagnostic—it’s a roadmap. While Mexico has made progress in green finance, the guide points to key areas for further growth. These include the need for greater awareness among developers, promoters, and financial institutions, and better inclusion of SMEs, which often face access barriers. 

It also emphasizes the importance of local governments offering non-monetary incentives. 

Another central point is strengthening the link between environmental certifications and public policy, so that these tools are recognized not only by the market but also by regulatory and financial frameworks. 

The 2025 edition is just the beginning. Future updates will incorporate more institutions and financial products with a clear goal: to make sustainable construction no longer the exception—but the standard. 

Download the complete guide here.

Tlalnepark IV Nave 2 has become the first industrial project in the world to achieve LEED® O+M v5 beta certification, achieving Gold level. Located in Tlalnepantla de Baz, Estado de México, it is a benchmark in the adoption of sustainable practices for the operation and maintenance of industrial buildings.

Owned by FUNO, the largest real estate investment trust in Latin America, this building has set a precedent by encouraging its tenants to align with the company’s sustainability goals.

Efficiency and Environmental Commitment

With a surface area of ​​34,819 m² and completed in 2017, this distribution center and warehouse was designed to reduce its environmental impact and maximize operational efficiency. The sustainability strategies implemented in the facility encompass the three principles of this new version: climate action, quality of life, and ecological restoration and conservation. These include assessments and improvement plans developed on relevant topics such as water management, refrigerant management, sustainable transportation, occupant needs, and site management, among others.

Among its main initiatives, the building features advanced energy efficiency strategies, aligned with the highest sustainability standards, such as LEED certification. The building also implements water use policies, resulting in low water consumption compared to similar buildings. Furthermore, the building is distinguished by its efficient waste management and high landfill diversion rate, serving as a benchmark for other buildings in Mexico.

Social Impact and Equity in Operations

Tlalnepark IV Nave 2 stands out not only for its environmental focus but also for its commitment to equity and the well-being of its staff. Through operational planning that prioritizes employee safety and sustainable maintenance, the building guarantees optimal working conditions and promotes equity in all its operational areas.

A Model for the Industry

The success of Tlalnepark IV Nave 2 demonstrates that the logistics and warehousing industry can move towards a more sustainable model without compromising operational efficiency. With this pioneering certification, the building is positioned as a global benchmark in the transformation of industrial spaces towards a more responsible and sustainable future.