Lower Derby Road, Portsmouth - Pilot
About the building
This three bedroom, end-of-terrace house in Portsmouth’s Lower Derby Road, is typical of thousands of properties built in the Portsmouth area in the early 1900s.
The property was in a poor state of repair and, as part of a programme of refurbishment, the opportunity was taken to significantly reduce carbon emissions and to enhance overall sustainability.
Improvements to the property include: DPC injection, insulation, new windows, a new kitchen and bathroom, a partial rewire, new joinery, a new heating system, and making good and decorating.
Further information
Key facts
- BREEAM rating: Excellent
- Score: 76.71%
- House Type: End terrace
- Size: 72m2
- Stage: Design Stage Certified
- BREEAM version: Domestic Refurbishment
Overview of environmental features
The building’s key environmental features include:
- Solar thermal system
- Mechanical ventilation with heat recovery (MVHR) system
- Flood Resilience strategy
- Low water usage
- Ecological enhancements
The BREEAM assessment
The scheme achieved maximum credits in the Water, Pollution, Management and Ecology categories.
Building services
Heating and hot water is provided by a gas combi boiler in conjunction with a solar thermal panel.
Green strategy
- A 70% reduction in carbon emissions was achieved through insulation, good levels of air tightness and the use of solar energy.
- The Energy Efficiency Rating band improved from E to C.
- Responsibly sourced building materials were specified.
Project team details
- Developer: PMC Construction & Development Services Ltd
- Architect: RBA Architects
- Assessor: Claire Westron, Rund Partnership Ltd
Claire Westron of Rund Partnership Ltd said:
“Using the BREEAM Domestic Refurbishment assessment method was a useful way of weighing up options for improving the dwelling. The package of measures chosen offered the most cost effective way of significantly reducing carbon emissions.”
