Sustainable homes at the heart of Alton Gateway

Project	Emma House, Alton
Client	Highwood Group
Architect	PDP
Category	New build

Overview

The Alton Gateway, officially opened in June 2025, has transformed the entrance to Alton, a market town in East Hampshire. The scheme combines affordable housing, a care home, and retirement flats. Amidst this mixed-use development sits Emma House—a low-energy housing block targeting sustainable, affordable living.

Resolution Energy provided energy consultancy support to our client, Highwood Group, delivering a comprehensive energy assessment to ensure compliance with planning policy requirements. The scheme was required to demonstrate a minimum 10% reduction in regulated carbon emissions through the integration of on-site renewable energy technologies. Completed in May 2025, the photovoltaic system is now operational and contributing effectively to the development’s low-carbon strategy.

Technical services provided

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• Conducted detailed calculations to determine the required photovoltaic (PV) array capacity in order to satisfy the planning policy requirement for on-site renewable energy contribution

  
  

• Completed full SAP assessments for all residential units at construction stage, in accordance with Part L1A of the Building Regulations

  
  

• Performed SBEM calculations for all non-domestic areas of the development, including the reception, office, and communal lounge, ensuring compliance with Part L2A

  
  

• Issued Energy Performance Certificates (EPCs) upon project completion for both domestic and non-domestic zones.