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TNFD biodiversity requirements for London commercial property in 2025

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The commercial property landscape in London is undergoing a fundamental transformation as new biodiversity and ESG regulations reshape how buildings are developed, valued, and managed. From mandatory biodiversity net gain requirements to the emerging TNFD framework, property owners and investors must navigate an increasingly complex regulatory environment that prioritizes ecological sustainability alongside financial returns.

Biodiversity net gain (BNG) requirements

Since February 12, 2024, England became the first country globally to make biodiversity net gain a legal requirement for commercial developments. All major housing developments are required to deliver at least a 10% benefit for nature with England becoming the first country in the world to make Biodiversity Net Gain a legal requirement. This groundbreaking legislation requires:

  • 10% minimum biodiversity improvement measured using standardized biodiversity units
  • Three-tier compliance approach: on-site habitat creation, off-site biodiversity units, or government biodiversity credits as a last resort
  • 30-year management commitment for all significant habitat improvements
  • Universal application to major developments, with small sites (1-9 dwellings) included from April 2024

Scope and application

The BNG regulations apply to both major and minor development with some exceptions. For commercial properties, this includes new commercial buildings and industrial developments, extensions over 1,000 square meters which must be treated as major developments, refurbishment projects that impact existing habitats, and mixed-use developments combining commercial and residential elements.

Exemptions and thresholds

Limited exemptions exist for very small-scale developments that impact less than 25 square metres of non-priority habitat, but the vast majority of London commercial property development will fall within scope of these requirements.

What is TNFD?

The TNFD is a market-led, science-based and governmentsupported global initiative. The recommendations and guidance provide organisations with a risk management and disclosure framework to act on evolving nature-related dependencies, impacts, risks and opportunities.

The Taskforce on Nature-related Financial Disclosures represents a critical evolution in environmental reporting, extending beyond climate considerations to encompass broader ecological impacts. After two years of design and development in partnership with 20 knowledge partners and the benefit of extensive consultation with market participants and other stakeholders, the TNFD launched its final recommendations in September 2023.

TNFD’s four pillars for commercial property

The framework requires organizations to report across four key areas:

TNFD PillarRequirementsApplication to Commercial Property
GovernanceProcesses, controls and procedures for nature-related issuesBoard oversight of biodiversity strategies and ESG integration
StrategyApproach to managing nature-related issuesIntegration with business planning and property development
Risk ManagementIdentify, assess, prioritise and monitor nature risksProperty-level risk assessments and dependency mapping
Metrics and TargetsPerformance tracking and target progressBiodiversity unit measurements and nature-positive KPIs

TNFD adoption momentum

The framework has gained remarkable traction across the financial sector. The additional 96 organisations announced brings the total number of companies already committed to disclose their material nature-related issues to 416. This includes:

  • 114 financial institutions representing US$15.9 trillion in Assets under Management
  • 25% of the world’s systemically important banks
  • Companies across 62 of 77 SICS sectors from 49 countries

Commercial real estate guidance

The Better Buildings Partnership (BBP) released a new publication to support UK commercial real estate owners to apply the Taskforce on Nature-related Financial Disclosures (TNFD). This sector-specific guidance provides practical implementation tools for property owners, including:

  • The LEAP (Locate, Evaluate, Assess, Prepare) process for organizational strategy
  • Step-by-step implementation guidelines
  • Nature-related risk assessment methodologies
  • Biodiversity impact measurement frameworks

Biodiversity credit market creation

The mandatory BNG requirements have catalyzed the emergence of a significant new market. The department estimates the market for off-site biodiversity units will be worth between £135–£274 million annually. This creates both compliance costs and investment opportunities for property developers and institutional investors.

Nature-based investment opportunities

BNG has also been shown to achieve positive social outcomes. As BNG projects create green spaces and often enhance local biodiversity, the process can foster enhanced community well-being in addition to supporting local wildlife and Nature Recovery Networks. Investment into BNG can also stimulate local economies through job creation in conservation, landscaping, and environmental management.

ESG integration and reporting

The statutory BNG process encourages the alignment of biodiversity investment outcomes with recognised reporting frameworks such as the Taskforce on Nature-related Financial Disclosures (TNFD) and the Global Reporting Initiative (GRI) via the use of a standardised metric, and the built-in transparency and accountability developers must demonstrate.

Market valuation impact

Biodiversity loss represents a significant risk to firms, with over 72% of global companies acknowledging that its drivers, such as climate change and pollution, will pose a risk to their business models by 2030. Properties that proactively address biodiversity requirements are seeing enhanced valuations through sustainability premiums and improved access to green finance.

Nature forward commercial real estate are showcasing their efforts for sustainability. 40 Leadenhall in London is a great example:

The City Plan 2040 vision

The City of London Corporation has developed a forward-thinking approach to these regulatory challenges. The Corporation has acknowledged that it will be very difficult for development to achieve the 10% biodiversity net gain requirement introduced as part of the Environmental Act 2021. Rather, the draft policy seeks an absolute increase in biodiversity units in lieu of a percentage uplift.

Urban greening and biodiversity focus

The Planning for Sustainability SPD, adopted on the 19 February 2025, provides guidance and sets out key actions and measures on five environmental sustainability topics that applicants should address in planning application proposals in the Square Mile. The Urban Greening and Biodiversity component specifically addresses:

  • Integrated roofscape design providing insulation, urban greening and biodiversity, rainwater collection
  • Green infrastructure integration with commercial development
  • Pollinator pathway creation connecting habitats across the Square Mile
  • Native species prioritization in landscaping and habitat creation

Biodiversity action plan 2021-2026

The City of London Corporation has established comprehensive biodiversity targets through their current action plan, recognizing that healthy ecosystems support all life on Earth, providing natural capital that underpins the successful functioning of our economy, businesses and society.

Bee homes installations near The Gherkin in London.

Dependency mapping

Commercial properties must now assess their dependencies on ecosystem services including water regulation and filtration through natural systems, climate regulation via urban green infrastructure, air quality improvement through vegetation and natural processes, and pollination services for any food-related commercial activities.

Impact assessment requirements

Properties must evaluate their impacts on local biodiversity through habitat loss or fragmentation, ecosystem connectivity and wildlife corridors, soil quality and water systems through development activities, and carbon sequestration capacity of natural areas.

Risk and opportunity identification

The TNFD framework requires systematic assessment of physical risks from ecosystem degradation or collapse, transition risks from changing regulations and market preferences, reputational risks from poor environmental performance, and investment opportunities in nature-positive solutions.

Regulatory compliance risks

Property owners face significant penalties for non-compliance. Enforcement action could include requiring the developer to undertake remediation work, making them buy costly government BNG credits or, in the most extreme cases, forcing a developer to modify or remove a development.

Market Differentiation Opportunities

Properties demonstrating superior biodiversity performance gain competitive advantages through:

  • Enhanced tenant attraction as corporations prioritize sustainable premises
  • Premium rental rates for environmentally certified buildings
  • Improved financing terms from ESG-focused lenders
  • Reduced operational risks through natural climate resilience

Investment Portfolio Benefits

Nature-positive properties offer future-proofing against regulatory changes, enhanced asset values through natural capital appreciation, reduced insurance costs via natural hazard mitigation, and innovation partnership opportunities with environmental technology companies.

The convergence of biodiversity net gain requirements and TNFD frameworks represents more than regulatory compliance—it signals a fundamental shift toward nature-positive real estate investment. More than half of global GDP depends on materials and processes provided by nature, making responsible investment not just environmentally necessary but economically sensible.

The World Economic Forum estimates that investment in nature-based solutions needs to at least triple in real terms by 2030 and increase fourfold by 2050 if the world is to meet its climate change, biodiversity and land degradation targets. This creates unprecedented opportunities for London commercial property to lead global best practices in sustainable development.

Properties that proactively embrace biodiversity requirements will benefit from enhanced valuations, improved tenant demand, and reduced regulatory risk. The integration of TNFD biodiversity requirements with broader ESG frameworks enables London commercial property to demonstrate leadership in sustainable real estate while generating positive returns for both investors and the natural environment.

Success requires immediate action, strategic planning, and long-term commitment to nature-positive outcomes that benefit financial returns, community wellbeing, and ecological resilience across London’s evolving urban landscape.


For expert guidance on implementing biodiversity and ESG requirements in your commercial property portfolio, Alvéole provides specialized consulting services that help property owners navigate complex ecological regulations while identifying value-creation opportunities through nature-based solutions.


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