Green Building Certifications

Green Building Certifications are no longer optional: they are a strategic imperative. As the global leader in BREEAM In-Use certification, Longevity Partners enables clients to meet rising environmental expectations, unlock asset value, and stay ahead of regulatory change through an advanced, tech-enabled certification process.

Certify Your Real Estate Portfolio with Confidence

Longevity’s Green Building Certifications team supports clients navigate evolving investor expectations, tightening regulations, and shifting tenant priorities. Through independent certification, we help you demonstrate your sustainability performance, protect asset liquidity, and drive long-term value.

Our Services

Assets in Operation

Certifying an asset in operation is a powerful way to measure your building’s sustainability performance, identify opportunities to cut carbon emissions, and boost efficiency and resilience – all while enhancing long-term asset value.

• BREEAM In-Use

BREEAM In‑Use, the most widely adopted certification scheme for operational assets, evaluates both the building’s actual performance (Part 1) and how it is managed (Part 2) across nine weighted sustainability categories.

The framework enables benchmarking of individual assets, groups or entire portfolios, supports continuous improvement, enhances ESG scoring (notably via GRESB), improves tenant engagement, and helps identify investment priorities to reduce operational costs and boost occupant wellbeing.

Longevity Partners delivers end‑to‑end certification services – including gap analysis, implementation advisory, sustainability policy development and fit‑out/refurbishment assessments – leveraging their status and client network to ensure high‑quality, efficient certification delivery.

• LEED O+M

LEED O+M (LEED for Existing Buildings: Operations & Maintenance) certification is a standard tailored for buildings occupied for at least one year.

The framework focuses on improving operational performance across key areas such as energy, water, waste, and overall sustainability, offering continuous performance tracking and simplified recertification. Its broad international recognition brings third‑party validation, emission reductions, optimization of resource consumption, improved occupant experience, and enhanced asset value.

Longevity supports clients through each stage – from pre‑assessment of certification requirements to ongoing performance monitoring and recertification strategy.

Other certifications for Assets in Operation Longevity Partners can support you with:

• EDGE
• IREM
• DGNB
• Fitwel
• WELL
• Wiredscore
• Biodivercity
• ActiveScore
• ModeScore

Refurbishment & New Construction

Certifying an asset in its development phase leads to maximum improvements and value creation. It is key to future-proofing your asset and securing its long-term value.

• BREEAM New Construction (NC) & BREEAM Refurbishment & Fit-Out (RFO)

Applied in over 69 countries, BNC and BRFO provide developers with an internationally recognised third party accreditation to guide, assess and monitor the sustainability of their design and construction practices. It embeds sustainability at design and construction stages and evaluating performance across core categories such as management, health & well‑being, energy, water, materials, waste, ecology, pollution, transport, and innovation.

Longevity’s services span the full certification lifecycle – from pre‑assessment to scheme selection, certification management, specialised studies (like Life‑Cycle Assessments and Climate Resilience), and leveraging their global assessor network – ideally engaged as early as concept design

• LEED for Building Design and Construction (LEED BD+C)

LEED BD+C certification is a globally recognized framework that integrates six core sustainability priorities (Location & Transportation; Sustainable Sites; Water Efficiency; Energy & Atmosphere; Materials & Resources; Indoor Environmental Quality) at the design and construction stage of new buildings.

Longevity’s services include pre‑assessment, certification management, leveraging their global project experience, engaging specialised professionals, and conducting studies such as Life‑Cycle Assessments and Energy Audits. Early engagement – preferably at concept design – is recommended to align critical sustainability decisions with certification goals.

Other certifications for New Construction & Refurbishment Longevity Partners can support you with:

• SKA
• DGNB
• EDGE

Health & Wellbeing

• Fitwel

Fitwel is a globally recognised health and well‑being standard that prioritises occupant wellness in building operations. This certification applies universally – no prerequisites – using a 1‑to‑3 star rating based on achieving at least 90 points, and focuses on boosting physical activity, mental well‑being, workplace safety, community health, social equity, and access to nutritious food.

Longevity manages the entire process – from pre‑assessment and data gathering, through documentation review and platform integration, to managing the submission and QA phase, including re‑assessments if needed.

• WELL

WELL certification is a dynamic building rating system grounded in rigorous research, which measures and monitors features that impact occupant health and well‑being by integrating health sciences with building sciences.

The assessment covers eleven core wellness dimensions: air quality, water, nourishment, light, movement, thermal comfort, sound, mind, materials, community, and innovation.

Longevity’s WELL Accredited Professionals (APs) manage the full certification journey – from pre-assessment and data/evidence collection to documentation review, platform submissions, quality assurance coordination, and re-assessment when required.

Your Outcomes

• Protect & de‑risk: protect against brown discounts and stranded assets; achieve compliance with MEES/EPBD; enhance GRESB/ESG ratings.
• Enhance returns: improve tenant retention, unlock rental premiums; access green finance and sustainability‑linked loans.
• Strengthen brand: strengthen corporate ESG reputation and meet investor expectations.

Why Choose Longevity Partners?

A Digital-First Approach to Green Building Certification

• Global Market Leadership: We are the world’s top BREEAM In-Use assessor, with over 2,400 active certifications and a 14% global market share. Our projects span 45 countries, including the highest-rated assets in 5+ national markets, and multiple BREEAM ‘Outstanding’ ratings.
• Award-Winning Performance: We were shortlisted for Best Assessor Organisation at the BRE Awards 2024, reflecting our commitment to quality, innovation, and client success.
• Next-Generation Certification Platform: Our proprietary SaaS platform streamlines the certification process through:
• Seamless evidence collection
• Real-time progress tracking
• Built-in quality control
• Integration with GRESB and third-party data

This digital-first approach delivers faster results, greater transparency, and scalable consistency across portfolios.

Insights

Projects

Iron Mountain

• Description: Showcasing sustainable data centres globally with BREEAM
• Location: US

Hines Ireland

• Description: Outstanding BREEAM score for Liffey Valley
• Location Dublin, Ireland

Vesteda

• Description: Certification of 27,500 homes within one year
• Location: Netherlands

BRE Academy

• Description: Assessor training & certification for internal delivery teams
• Location: Remote
• Project Link