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Hindolveston Road Housing

Location: Fulmodeston, North Norfolk
Completion Status: Certified Occupancy: Occupied August 2013
Architect: Mole Architects Consultant: Passivhaus consultant- Andrew Fisher, AMF Consulting QS- Sally Brooks, Davis Langdon Civil & Structural Engineers- Mike Lloyd, Rossi Long
Contractor: Lovell Partnerships Client: Ed Mumford-Smith, Broadland Housing association
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Finalist in the Architectural Design category of the UK Passivhaus Awards 2014. Hindolveston Road Housing, is an affordable housing Passivhaus development of 2/3-bed semi-detached houses, two of which are passivhaus accredited. The Budget was £550,000, and the contract combined with a low-energy sister scheme of 4 houses in a neighbouring village. The scheme is extremely successful in terms of design quality/progressive social housing provision, providing high-quality affordable homes for families with local connections.

The development consists of:

  • 2x 2bed family houses
  • 2x 3bed family houses

The project was a successful partnership between Broadland Housing and North Norfolk District Council, who were partially funders. Land was generously donated by local landowner, Lord Hastings in exchange for exemplar sustainability /design credentials. Partially inspired by the village’s existing 1950’s social housing, materials draw on locally-sourced selections of naturally finished timber boards, brick and black clay pantiles.

Built under Rural Exception Housing policies, new affordable homes are provided for local people outside the village development boundary. This has enabled construction of high quality homes increasingly unaffordable, due to a distorted house market created by the increased demand for holiday homes in North Norfolk. The area suffers from high fuel poverty, affecting over 25% of households with low average incomes and no mains gas provision. The Passivhaus approach significantly reduced energy costs, leaving householders with disposable income to afford their home, free from risk of fluctuating fuel costs.

The properties are occupied by residents working nearby with strong family connections, reducing levels of travel. Existing trees/hedges are supplemented by additional long term legacy planting, maintaining the site’s existing rich biodiversity.

All four plots beat the passive house airtightness standard of 0.6 ACH with an average EPC level B rating with 89.25 SAP rating. Annual heating demand is 12 kWh/(m²a) calculated according to PHPP and CO2 emissions are 12.97 kgCO2/m2.a. The houses are so energy efficient no central heating system is required - a first for Passivhaus schemes in the East of England.

The scheme’s sister project designed by MOLE is located in neighbouring village, Barney. Similar in design and built to Code for Sustainable Homes level 3 it takes on board Passivhaus principles of enhanced air tightness of 1.5 air changes per hour and passive solar gain, giving it the label of ‘enhanced standard.’ Monitoring is taking place to compare capital costs verses energy use for this standard against Passivhaus standard, with monitoring equipment installed in both projects through the Build with Care scheme, University of East Anglia.

Careful North/South orientation and solar-shading make best use of solar gain. Compact form, restriction of window size, predominantly south-facing openings, high insulation levels, heat recovery ventilation and timber primary structure, reduce energy use during and post-construction. The project has been used as a learning tool prompting a groundswell of support in Norfolk, with shared learning benefiting future Passivhaus developments.

 

Further Information:

Mole Architects

PROJECT FACTFILE

Previous PHT Story: 20 November 2013