Holy Trinity Primary School

Architype Architects, Richmond, 2011


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  • Site plan    
  • Plan    
  • Key Stage 2 Wing ground floor plan    
  • Key Stage 2 Wing ceiling plan    
  • Key Stage 2 long section    
  • Key Stage 2 cross section    
  • Context of buildings    
  • Insulated wall detail    
  • Roof detail    

Extensions and reorganisation of a 1970s primary school to double capacity

The expansion provides 12 new classrooms, group spaces, staff areas and a dedicated SEN facility placed around the existing schoo, which has been opened out into the landscape with a series of courtyard spaces created.

The timber roof panels cantilever to provide shade and a weather-protecting edge. Open cell insulation combines with the mass of the green roof system to acoustically insulate the building from high levels of aircraft noise.

The additional wings are well-insulated and airtight with high performance triple glazed windows and mechanical heat recovery. An earth tube system cools the classrooms in summer and mitigates the potential future impact of climate change.

Long-term maintenance and future disassembly have been considered through the specification of robust self-finished, modular and mechanically fixed components. Renewable bio-based products have been specified to minimise embodied CO2 and reduce potential toxicity within the internal environment.


  • Begun: Mar 2010
  • Completed: Apr 2011
  • Floor area: 2,223m2
  • Sector: Education
  • Total cost: £4.7M
  • Procurement: JCT 2005 Design and Build
  • Address: Carrington Road, off Manor Road, Richmond, TW10 5AA, United Kingdom

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