Warm Homes Plan: What Housing Providers Should Be Preparing Now

The Warm Homes Plan is putting retrofit firmly back on the agenda for housing providers, councils and contractors. With funding, low-carbon heating, insulation, solar PV and battery storage all part of the wider conversation, the opportunity is clear.

But preparation will be just as important as funding.

Housing providers will need to understand their stock, identify priority homes, manage resident engagement, plan compliance and make sure the right technical information is in place before projects reach site.

Start With the Existing Stock

A good retrofit strategy should start with the homes themselves, not the funding application.

EPC data can help, but it rarely gives the full picture. Housing providers also need to understand construction type, condition, ventilation, damp and mould history, previous works, exposure, access constraints and resident needs.

A useful early review should consider:

• Property age, type and construction

• Wall, roof and floor build-ups

• Existing insulation and heating systems

• Damp, mould and repair history

• Ventilation and moisture risk

• Resident vulnerability and access issues

This helps move retrofit planning away from assumptions and towards evidence-led decision-making.

Use Archetypes to Plan at Scale

For larger portfolios, archetype mapping can make retrofit programmes far more manageable. Similar homes can be grouped by construction type, age, layout, wall build-up, roof form and energy performance, while still allowing for individual property variations.

This was important at St Mary’s Place in Portskewett, where Target Green supported a retrofit scheme across 33 homes, including flats, bungalows and a house. The project involved different archetypes and construction types, which meant the retrofit strategy had to be tailored rather than applied as a standard specification.

That kind of early technical understanding helps housing providers plan surveys, develop specifications, estimate costs and reduce risk before works begin.

The courtyard at St Mary's

Get the Right Surveys in Early

Many retrofit problems start when decisions are made before the building has been properly understood.

Depending on the homes and proposed measures, early surveys may include retrofit assessments, cavity wall inspections, damp and moisture investigations, ventilation assessments, roof surveys, structural surveys, asbestos checks, planning reviews or ecology surveys.

These surveys are not just technical extras. They help avoid late redesigns, cost changes, delays and compliance issues.

Think About Delivery in Occupied Homes

Many retrofit projects will be delivered while residents are still living in their homes. This needs to be planned from the beginning.

At Newland Way in Monmouth, Target Green provided Retrofit Design and Coordination for a PAS 2035 Pathway C scheme across two occupied residential blocks. The project included external wall insulation, roof upgrades, cavity remediation, ventilation improvements, solar PV and the replacement of elevated walkways with a new AliDeck system.

The challenge was not only selecting the right measures. It was coordinating the works around resident access, safety, sequencing, structural interfaces and the day-to-day realities of occupied buildings.

This is exactly the type of complexity housing providers need to prepare for as retrofit programmes scale.

Treat PAS 2035 as Part of the Strategy

PAS 2035 should not be treated as paperwork at the end of a project. It should shape how retrofit is planned, designed and delivered.

That means thinking early about risk pathways, resident engagement, assessment requirements, design coordination, evidence, monitoring and handover.

A PAS 2035 compliant approach encourages whole-house thinking, helping to make sure measures such as insulation, ventilation, heating, solar PV and battery storage are not considered in isolation.

Build Quality Checks Into the Programme

As retrofit scales, quality control becomes even more important. Housing providers should build checks into the project at key stages, rather than waiting until completion.

Useful quality stages include:

• Survey review

• Design review

• Pre-start checks

• Installation inspections

• Evidence review

• Handover checks

This helps identify issues before they are repeated across multiple homes. It also protects the client, contractor, resident and long-term performance of the building.

Prepare Before Funding Windows Open

Housing providers that already have good stock data, archetype mapping, technical surveys and outline retrofit strategies will be in a stronger position when funding opportunities arise.

Funding readiness should include priority homes, likely measures, planning risks, resident impact, delivery capacity, evidence requirements and budget assumptions.

This does not mean every project needs to be fully designed in advance. It means avoiding a standing start when funding becomes available.

How Target Green Can Help

Target Green supports housing providers, councils, landlords and contractors with design-led retrofit services across the UK.

Our team can assist with portfolio review, retrofit assessments, archetype mapping, PAS 2035 design and coordination, technical detailing, planning support, compliance advice and construction phase support.

If you are preparing for Warm Homes Plan opportunities or planning a larger retrofit programme, Target Green can help you build a practical, evidence-led strategy from the earliest stages.