Citizen Housing Pilot Scheme - Littlethorpe Status:
Citizen Housing has recognised the impact of communities in delivering small infill sites that are not possible to deliver through traditional means via the exploration of modular construction.
Citizen Housing appointed Totally Modular to provide a full turnkey solution whereby two energy-efficient houses for affordable rent were constructed using MMC Category 1 on a redundant infill site suffering from blight. The houses were installed on-site in less than 48 hours and received an A+ EPC rating compared to the national average of a D rating. The houses were completed off-site in controlled factory conditions, and they exceeded building regulations, therefore providing higher manufacturing solutions with lower risk and greater speed, cost-effectiveness, and consistency. Both houses scored a 98/100 CO 2 rating, predicting that each house will generate just two tonnes of CO 2 yearly, compared to a UK average of six tonnes.
Key Stats:
- Energy Operational Energy: (2-bed) - 37.49 kWh/m²/yr. (3-bed) - 36.92 kWh/m²/yr.
- Generating 2 tonnes of CO2 yearly in operation compared to the UK average of 6 tonnes.
- 74% PMV 95% of the houses built offsite
The off-site production reduced waste by up to 80% and helped reduce CO2 by 50% compared to traditional site construction. The solar panels with battery back-up guarantee residents a 20% saving on fuel bills. Annual analysis showed total running costs at £1.48 a day for the three-bedroom, five-person house. Air source heat pumps and mechanical ventilation with a heat recovery system are installed to manage air quality.
How does this project perform against the WMCA Homes for Future Technical Standards?
Energy
Key:
| = Project Metrics M = Measure and Monitor | Statutory Plus | 2025 | Data not measured | |
|---|---|---|---|---|
| Operational Energy (kWh/m2) | M | < 35 | < 35 | |
| Space Heating Demand (kWh/m2/yr) | M | 15 - 20 | < 15 | |
| Embodied Carbon (kgCO2/m2) | M | < 400 | < 300 | |
| Pre-Manufactured Value Material cost/total cost ratio | M | 50 | 55 |  |