Case study · North Star Housing, Darlington
Three terraces in central Darlington, retrofitted as whole houses.
A whole house retrofit of 100 social rented homes for North Star Housing, funded through the Social Housing Decarbonisation Fund. Project led by Miles Sharples, now Managing Director of Energy Giants, with a skilled, accredited workforce.1
The numbers from the programme
100
Social rented homes
Three terraces in central Darlington.2
£350k
Programme value
From the programme documentation.3
3
Terraces
In central Darlington, retrofitted street by street with tenants at home.
The measures
Fabric first, then low carbon heat.
Each home got the measures that worked together: cavity wall, flat roof and loft insulation, brick effect external wall insulation integrated with new windows and doors, then air source heat pumps and full ventilation upgrades so the homes stayed healthy once they were sealed up.
Brick effect external wall insulation mattered on these streets. It keeps the look of a terrace while the wall behind it performs like a modern one, and integrating it with the new windows and doors is what stops the cold bridges at the reveals.


The work
One programme, one point of contact.
Building on the County Durham scheme, the programme was run the same way: turnkey to PAS 2030 and PAS 2035 on the programme, from customer qualification, the pre-installation building inspection, retrofit assessment and design, through installation and compliance to customer sign off, warranties and the TrustMark lodgement.
A single named project manager coordinated everything with North Star Housing. Survey, design and installation ran to one programme on a shared Teams dashboard of delivery KPIs, with weekly meetings with the landlord to report progress and settle issues.
In-house resident liaison and retrofit coordination officers kept tenants informed and the files complete, and the programme records every home as meeting the PAS requirements.4

The programme
A housing association and its tenants.
The client was North Star Housing, a housing association landlord in the North East. The work was funded through wave 2 of the Social Housing Decarbonisation Fund, and the grant claims were successful.4
Social housing retrofit happens around tenants who are living in the homes throughout. On a terrace that means scaffold, access to every elevation and new windows at the same time, so the resident liaison is as much of the job as the installation.

What was delivered
The specification.
| Client | North Star Housing |
|---|---|
| Scheme | Social Housing Decarbonisation Fund, wave 2 |
| Homes | 100 social rented homes on three terraces in central Darlington |
| Measures | Brick effect external wall insulation integrated with new windows and doors, cavity wall, flat roof and loft insulation, air source heat pumps, full ventilation upgrades |
| The package | Customer qualification, pre-installation building inspection, retrofit assessment and design, installation, compliance, customer sign off, warranties and TrustMark lodgement |
| Standards | Delivered to PAS 2030 and PAS 2035 on the programme |
| Working conditions | Occupied homes, tenants at home throughout |
| Project lead | Miles Sharples, now Managing Director, Energy Giants1 |
| Status | Recent retrofit project, complete |
- Step oneSign up and qualify
Each household qualified for the scheme and talked through what would happen, before any survey.
- Step twoSurvey and design
A pre-installation building inspection, a retrofit assessment and a design for each home, not a blanket specification.
- Step threeInstall
The measures sequenced so each one supports the next, with residents told the dates and kept informed throughout.
- Step fourHand over and lodge
Compliance checks, customer sign off, the warranties and the TrustMark lodgement, home by home.
Decarbonising social housing? Talk to a team that has done it on a terrace.
Housing providers: whole house retrofit in occupied social housing needs the fabric, the heat and the residents handled together. The team that delivered this programme is now at Energy Giants, working as a retrofit subcontractor for housing providers and main contractors.
Notes on the figures
- This programme was delivered under a contract held by a previous company. It appears here as the track record of Miles Sharples, who led it, and of the skilled, accredited workforce and office team now at Energy Giants. Energy Giants was not the contracting party.
- Homes: 100 social rented homes, from the programme documentation.
- Programme value £350,000, from the programme documentation.
- Funding route, grant claims and PAS compliance as recorded in the programme documentation.
- No energy, bill or carbon saving is stated on this page. Savings depend on the house, the measures and the year, and any figure we publish later will carry its assumptions.
- Photographs on this page are illustrative and are not of Darlington properties.