Sustainability Report

Efficient

Although Wade House is a new-build dwelling, it occupies a previously developed site, replacing a pair of dilapidated garages. The project therefore reuses existing land and infrastructure rather than expanding onto a greenfield site.
The compact form and efficient structural layout minimise overall material use, contributing to a reduction in embodied impact and construction waste.
The design sought to reduce embodied energy through a fabric-first and materially efficient approach. A formal whole-life carbon assessment was not undertaken.

Efficient

Wade House adopts a fabric-first approach, with passive design principles informing both its form and detailing. High levels of insulation, exceeding typical standards, work alongside natural ventilation to regulate internal temperatures and reduce heat gain.
Overheating is considered the greater risk in new-build housing. Passive ventilation is supported by a stack-effect strategy, with low- and high-level openings enabling air movement through the dwelling. This promotes passive airflow through pressure differentials, even in still conditions.
The building was assessed using the UK Standard Assessment Procedure in accordance with Building Regulations Part L. The dwelling achieves an EPC score of 83 (Band B) and an Environmental Impact rating of 96 (Band A), indicating positive energy performance for a new-build residential project.
Predicted regulated primary energy use is 51.99 kWh/m²/yr, based on the as-built SAP assessment. The total regulated energy demand for space heating, hot water, and lighting is approximately 2,028 kWh/yr, which equates to around 30.7 kWh/m²/yr. Unregulated energy uses, including appliances and plug loads, are not included in the assessment.
Energy is supplied entirely by electricity, with no gas connection.

Material selection focused on durability and longevity, reducing the likelihood of early replacement and the associated lifecycle waste. Brick, render, and clay tiles are used as the principal external materials, providing durable, low-maintenance finishes intended to extend the building’s service life.
The apex and pediment of the front elevation are clad in Accoya finished with red Owatrol, rather than conventional timber cladding. This was selected for its stability, long-term durability, and minimal maintenance requirements.
Internally, a material palette centred on PEFC-certified Douglas fir plywood supports a durable, repairable fit-out intended to minimise waste over time.

Adaptive Reuse and Flexible Design Considerations

Internal spaces are deliberately open and loosely defined, allowing their functions to evolve over time. The kitchen island is designed as a movable component, enabling the living space to be reconfigured in response to changing needs.

Accoya

VELFAC®

Ketley brick