Lessons Learned & Opportunities for Improvement:
Over the past two decades, advancements in materials and methods have highlighted areas for improvement:
- Thermal Performance: Untreated ground-floor slabs could now be insulated using ultra-thin Aerogel panels.
- Windows: Upgrading from double to triple glazing would further reduce heat loss.
- Energy Systems: Replacing gas boilers with air-source heat pumps and installing solar panels would better align with modern decarbonization strategies.
- Air Tightness & Ventilation: Air-tight membranes and MVHR systems would enhance thermal efficiency and prevent condensation
- Extensions: Single storey rooftop additions could have provided more homes with low environmental impact that avoid regulatory complexities such as the need for sprinklers or A1/A2 fire rated façade elements since all floors would remain below 11m and additional carbon-heavy foundations.
Retrofit’s Growing Importance
As the UK aims for net-zero emissions by 2050, retrofitting is critical for decarbonising existing housing stock and improving living standards. Initiatives like the Labour government’s 2023 Warm Homes Plan and standards such as LETI and PAS 2035 are designed to support these goals.
However, retrofit projects often face challenges due to poorly executed designs that overlook buildings’ holistic needs. PAS 2035’s introduction of roles like Retrofit Assessor and Coordinator aims to restore confidence and ensure long-term success.
Navigating Funding Challenges
Securing funding remains a significant barrier. Local authorities and housing associations are addressing this by aligning retrofits with scheduled maintenance, minimising resident disruption and optimising budgets. For example, roof repairs often incorporate loft insulation upgrades.
There are currently many funding streams available. For homeowners, The Great British Insulation Scheme and the Energy Company Obligation Scheme provide 100% grants to tackle fuel poverty. For local authorities, The Social Housing Decarbonising Fund (SHDF) and the GLA’s £500 million Green Finance Fund (part loan, part grant) support large-scale retrofits.
At Bell Phillips, we’ve supported clients in leveraging these opportunities, ensuring efficient and impactful upgrades.
Looking Ahead
Brooks Road Estate demonstrates the potential of well-designed, expertly executed retrofits. Today, we continue to refine our approach, led by specialists like our Senior Architect Sean Kitchen, who is qualifying as a PAS 2035 Retrofit Coordinator.
As we look to the future, we remain committed to creating sustainable, energy-efficient housing for generations to come, building on the legacy of Brooks Road Estate.