Our pillars of sustainability

Acquisition of brownfield sites
Transformational, regeneration of unloved buildings and wasted spaces
High quality rental homes

Our sustainability pillars shape not just what we do, but how we do it. As a vertically integrated company, we oversee every stage of the process — giving us the responsibility and the opportunity to make thoughtful choices. This means we can act with integrity: reducing our impact on the planet, creating long-term value, and strengthening the communities that support and sustain us.

Our mission

Grifo Developments create homes and places that enhance lives, respect history, and strengthen communities while protecting the environment for future generations.

We take responsibility for every stage of the property lifecycle and guided by our core values we act with integrity, diligence, and care to ensure every project contributes meaningfully to people, planet, and place.

Our core values

People - We nurture connection and community — within our team, our neighbourhoods, and with our residents.

Green spaces - Every neighbourhood includes communal green spaces designed for residents to enjoy while supporting local biodiversity.

Individuality - Each building is treated as unique — shaped by its setting, enriched by its history, and connected to its community.

Sustainability - We design, build, and operate for long-term stewardship so the qualities of our buildings and locations endure.

Wellbeing - Working closely with our design partners, we create healthy, comfortable spaces where wellbeing can truly flourish.

A brick residential building with white window frames and black gutters. The roof has solar panels and a tree in the background under a blue sky.

Cumulative modelled social value (net present value, 2025 prices) generated by completed neighbourhoods up to October 2025.

These figures are calculated in Social Value Consultancy’s Social Value & ESG Calculator, independently accredited by Social Value International for alignment to the Principles of Social Value and good practice.

Calculated in Social Value Consultancy’s Social Value & ESG Calculator (SVI-accredited; status valid 2 Jan 2025 – 2 Jan 2027).

Our Social Impact to date

£39.26M

Our Forecast Social Impact

£290M

Projected additional social value over the next 25 years from our current portfolio and pipeline, subject to delivery and underlying assumptions.

Forecasts are modelled using the Social Value & ESG Calculator and updated periodically as projects progress and new evidence becomes available.

Forecasts modelled in the Social Value & ESG Calculator (SVI-accredited; status valid 2 Jan 2025 – 2 Jan 2027).

View accreditation certificate (PDF)

How We Measure Impact

We use a whole-life social value approach that is consistent with UK Government guidance and the Principles of Social Value (Social Value International), combining CBA, SROI, wellbeing valuation, environmental valuation and economic impact analysis.
Calculations are performed in Social Value Consultancy’s Social Value & ESG Calculator — independently accredited by Social Value International — to ensure transparency, no over-claiming, and reproducibility across projects.
See accreditation certificate.

In practice, this means:

Cost–Benefit Analysis (CBA). Valuing outcomes for residents, communities, and the public purse using monetised benefits where appropriate (e.g., avoided costs, fiscal savings, wellbeing improvements).

Social Return on Investment (SROI). Applying SVI-compliant SROI to identify material outcomes with stakeholders, value what matters (including wellbeing effects), and adjust for deadweight, attribution, displacement and drop-off; ratios are reported where scope and evidence quality permit, with full disclosure of assumptions.

Wellbeing valuation. Applying Green Book-consistent methods and recognised proxy values where suitable and transparent.

Environmental valuation. Quantifying emissions reductions, resource efficiency and nature-related outcomes using UK Government carbon values and established appraisal guidance.

Economic impact. Estimating local employment, supply-chain, and expenditure effects with additionality adjustments (deadweight, displacement, attribution, leakage) and time-based drop-off.

Quality assurance. Auditable registers of assumptions, evidence sources, and calculations are maintained; all figures are internally reviewed before publication.

Important notes on methodology

Results are expressed as Net Present Value (NPV) at 2025 prices using HM Treasury Green Book discount rates unless stated.

Double-counting across wellbeing, environmental, and economic effects is avoided.

Where proxies are used, we disclose the source and rationale; where evidence is limited, conservative assumptions are applied.

Where an SROI ratio is presented, it is accompanied by the scope, period, stakeholder set, and sensitivity analysis to avoid over-claiming.

People enjoying outdoor activities in a backyard garden with brick houses, trees, and parked cars in the background.

HM Treasury Green Book – appraisal & evaluation, discounting, optimism bias

UK Government environmental appraisal guidance – carbon valuation and related guidance

Social Value International – Principles of Social Value (materiality, transparency, no over-claiming, verification)

Social Value International — SROI Guide (stakeholder-led, materiality-based valuation and impact adjustments)

GRESB – benchmarking selected assets/portfolios for investor reporting

Note: The Social Value & ESG Calculator is accredited by Social Value International; this accreditation applies to the software, not to individual project reports. Where independent assurance is obtained for a specific report, the scope and provider are disclosed.