Data & GRESB Reporting

Longevity Partners enables real estate to harness sustainability data to create measurable value – converting fragmented systems and complex reporting into performance, compliance, and strategic insight.

Our Tech-Enabled Sustainability Benchmarking Approach includes:

• End-to-end sustainability data solutions: from collection and assurance to strategy and reporting.
• Audit-ready outputs and disclosure support for GRESB, SFDR, CDP, INREV, TCFD, and beyond.
• Integrated data infrastructure built to scale, reduce risk, and inform net zero pathways.
• Year-round support to strengthen sustainability maturity, not just seasonal reporting cycles.

Our Services

Sustainability Data Collection, Management, and Analysis Services

• Stakeholder Engagement & Data Collection: Scalable, automated collection across tenants and managers, with ongoing coordination to ensure completeness and alignment with sustainability goals.
• Data Assurance: Independent third-party verification by AA1000-licensed assessors to ensure reliability and transparency.
• Data Management: Platform setup and integration leveraging Deepki, Measurabl, and bespoke solutions to fit your tech stack.
• Data Quality Reviews: Regular integrity checks, stakeholder coordination, and error resolution to ensure high-quality, decision-ready data.
• Data Strategy Reviews: Full assessments of data infrastructure with customised roadmaps for compliance and performance.
• Quarterly Reports: Detailed building-level performance insights across key sustainability KPIs paired with targeted actions to drive continuous improvement and support strategic decision-making.
• Custom Sustainability Guides: Development of tenant and property guides aligned with frameworks like GRESB, UN PRI, and TCFD.

GRESB Reporting Support

• End-to-End GRESB Management: Data collection, data quality review, metric submission, evidence compilation, and gap analysis.
• Mock Assessments & Year-One Strategy: Pre-submission diagnostics to maximize scores and highlight weaknesses early.
• Multi-Year Performance Planning: Strategic roadmaps for improving GRESB scores year over year.
• Cross-Functional Integration: Ties GRESB workstreams into broader sustainability strategy, tenant engagement, certifications, and climate resilience.

Your Outcomes

Partnering with Longevity Partners unlocks:

• Stronger GRESB scores and sustainability ratings
• Audit-ready reporting aligned with global standards
• Time savings through streamlined data collection, validation, and analytics and automated workflows
• Greater data visibility and risk mitigation
• Clearer decarbonisation opportunities and asset performance insights
• Enhanced investor trust and stakeholder confidence

Why Choose Longevity Partners?

• Proven GRESB Reporting Expertise
  Over 600 GRESB submissions supported since 2017, backed by a global team of 20+ GRESB specialists.
• Global Reach with Local Insight
  Dedicated teams across the UK, Europe, North America, and Asia-Pacific deliver tailored reporting support that meets both regional and fund-level needs.
• Fully Integrated Sustainability Services
  Sustainability reporting, tenant engagement, climate strategy, biodiversity planning, and net zero—all under one roof.
• Platform Agnostic, Technically Fluent

In-house capabilities: Advanced Python, SQL, and proprietary API expertise, enabling efficient data integration, automation, and custom solution development.

External platform expertise:

• Sustainability & ESG Data – including Deepki, Measurabl, Scaler, Abisko, and other leading global platforms
• Utility & Energy Billing – including Yardi, Conservice, and comparable U.S. and international systems
• Building Automation & Energy Management – including Schneider, Energy Star, BuildingMinds, and other market-leading solutions

• Award-Winning Innovation
  Winner of “Best Use of AI” at the 2024 ClimateImpact Summit Hackathon.
• Recognised GRESB Global Partner
  With direct engagement and feedback channels to GRESB leadership—ensuring clients stay ahead of updates and scoring shifts.

A Digital-First Approach to Sustainability Reporting

Longevity has recently developed a proprietary GRESB submission platform, intended to significantly streamline the GRESB submission process for major clients with multiple reporting funds.

It allows for:​

• Corporate template management – efficient application and tailoring of corporate answers to multiple reporting funds​
• Interaction with GRESB platform – pulling previous year’s answers and automatic pushing to platform​
• Integration with ESPM data via ESPM API​
• Comments tracking and resolution with Longevity consultants

Projects

J.P.Morgan Asset Management (Europe)

Across five European funds, Longevity delivered a scalable data management framework:

• Designed & implementation data collection automation programme across flagship core fund
• Data coverage for GRESB-reporting fund increased from 71% (2022) to 93% (2025)
• Live dashboards implemented for ongoing KPI tracking and data quality

AXA Investment Managers – (US)

For a diversified 80-asset portfolio (residential, industrial, retail, and office), Longevity implemented a property-level ESG data framework.

Quarterly reporting: Tracked energy, water, and waste coverage, with quality and completeness checks.

Process setup: Established systems for ongoing utility-data reporting and future collection.

Accuracy checks: Completed meter audits across all asset types.

Impact: Improved data coverage and positioned the portfolio for stronger ESG benchmarking results, including GRESB.

Deutsche Finance America (DFA)

For a five-office-building portfolio — including the Transamerica Pyramid in San Francisco and the Historic Coca-Cola Building in New York City — Longevity managed GRESB reporting since 2021.

GRESB performance: Increased from 48/100 (2021) to 72/100 (2024).

Data management: Consolidated and verified ESG data across three reporting cycles.

Impact: Delivered measurable ESG score improvement and strengthened the portfolio’s market positioning.

Nuveen – Limited Assurance for GRESB Reporting

For 242 diversified assets across nine GRESB-reporting funds, Longevity delivered limited assurance on ESG data.

Data verification: Reviewed all asset-level spreadsheets for accuracy, completeness, and consistency.

Quality assurance: Flagged anomalies and supported resolution ahead of submission.

Impact: Provided investor-grade confidence in data quality, strengthening Nuveen’s ESG disclosures and supporting reliable GRESB benchmarking.