Goldsmith Street: Large Projects Winner - Exemplar Sustainable Buildings Awards

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
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