Large Projects winner in the 2025 Exemplar Sustainable Building Awards. Goldsmith Street isn’t just an award-winning social housing development, it’s a game-changer to prove that local authorities can deliver net zero-ready homes – beautifully, affordably, and at scale. Nestled in Norwich and commissioned by Norwich City Council, this 93-home Passivhaus project seamlessly blends stunning design with social purpose, creating light-filled, community-focused homes where annual energy bills can be as low as £150.
A recipient of the prestigious 2019 RIBA Stirling Prize, Goldsmith Street is redefining affordable housing with its human-scale terraces, sunny streets, and ultra-low energy use—all built to a tight budget without sacrificing quality. As Norwich’s first council housing scheme in a generation, it sets a bold precedent for delivering precision Passivhaus standards while fostering a strong sense of community.
This visionary project is a UK benchmark for sustainable housing, thanks to a forward-thinking public client, expert delivery team, and fabric-first, timber-based construction. Its hybrid MMC timber frame achieves top-tier performance without compromising on cost or design, minimizing embodied carbon while meeting rigorous airtightness and thermal efficiency goals.

Key Stats
- Certifications: Passivhaus (April 2019)
- Date Occupied: 2019
- Treated Floor Area (TFA): 3,337.7m2
- Construction cost: £1,875/m² (excl. professional fees)
- Annual running costs: £150 per unit/year (of which standing charge £90) Approx. £2/m²/yr
- Heat source: Gas
- Overall Energy demand: 38 kWh/m²/yr
- Embodied carbon: 311 kgCO₂e/m² (A1–A5)
- Construction: Hybrid timber frame with brick/tile cladding, Warmcel insulation.
Key Team
- Client: Norwich City Council
- Architect: Mikhail Riches
- Contractor: RG Carter
- M&E Engineer: Greengauge Building Energy Consultants
- Passivhaus Consultants: WARM
- Structural Engineer: Rossi Long

