Social housing: net zero progress report - quarter 2 2024

Project Title: 107 Niddrie Road Project

Project Organisation: Southside Housing Association

Technology Type(s): ASHP

Location(s): Glasgow, Glasgow City Council

Grant Value: £128,618

Completion Date: July 2022

Project Headline: Retrofit of 8 tenement flats to Passive Haus (EnerPHit) standard

Project Description:

This project applied EnerPHit principles to the retrofit of 8 pre-1919 sandstone tenements in the south side of Glasgow.

All 8 flats were acquired by Southside Housing Association and provided a unique opportunity to progress a deep retrofit in pre-1919 tenements. The project aimed to assess the scalability and replicability and share lessons learned for Scotland’s wider pre-1919 tenement stock.

The project saw the installation of insulation and air tightness measures alongside triple glazed windows. ASHPs were installed in the 4 lower story flats with the upper 4 flats remaining on gas, with the project collecting data about how they compare. Wastewater heat recovery systems were also installed to capture and recycle the heat in water from baths, showers and the kitchen sink alongside mechanical ventilation with heat recovery.

To learn wider lessons for tenement retrofit, the project was evaluated by a research partnership resourced by the Scottish Funding Council.