Outcomes Over Outputs: Retrofit Redefined
30/06/2025

Retrofitting homes isn’t about tech or tick boxes — but about delivering outcomes that actually matter.
In this episode, Andy Sutton, Co-Founder and Chief Innovation Officer at Sero, lays down a bold challenge: define the outcome you want, measure it at the end — and keep it simple. From health to heat, retrofit must be judged by what it delivers for real people, not what it looks like on paper.
Key takeaways:
Retrofit must start with outcomes: health, affordability, comfort, and carbon reduction.
Define success in plain terms — CO₂ levels, temperature, running costs — and measure it post-works.
Separate the technical from the tactical — residents need clarity, not complexity.
Poor ventilation and overheating are often missed, yet critical to health.
Place-based, phased retrofit and early engagement build trust and uptake.
Retrofit is a health intervention — physical and mental. Think safe, secure, joyful homes.
Quality assurance can’t be a tick-box — it must prove the home performs.
Andy’s ‘magic wand’ idea: include minimum warmth in rent to align incentives and protect health.
Referenced resources:
Building Regs Part F (Ventilation): https://www.gov.uk/government/publications/ventilation-approved-document-f
Join the movement to retrofit for outcomes — not just output.
Related Content
What Are the Benefits of Being a Member of the Healthy Homes Hub?
Industry Recognition and Networking:
Connect with a thriving network of over 350 housing organisations, including decision-makers, innovators, and leaders. Build partnerships that enhance your professional growth and create lasting business opportunities.
Showcase Your Expertise:
Demonstrate your impact by participating in exclusive case studies, webinars, and events. Highlight your contributions to creating healthier, sustainable homes, reaching a broad audience across the sector.
Influence Policy and Advocacy:
Be part of shaping housing policy through direct engagement with policymakers and advocacy efforts. Stay at the forefront of discussions driving meaningful change in the housing sector.
Access to Market Insights:
Gain access to Healthy Homes Hub’s regular newsletters, expert analysis, and resources. Stay informed about trends, regulations, and innovative practices that affect housing professionals.
Specialised Events and Workshops:
Take part in events like the Immersive Study Tours, offering hands-on learning and networking opportunities. Visit groundbreaking projects and facilities to explore real-world solutions for healthier and more sustainable homes.
Exclusive Tools and Resources:
Only members can upgrade to Housing Sage, a cutting-edge AI assistant tailored to social housing professionals. Benefit from personalised insights, regulatory guidance, and innovative ideas to enhance your operations.
Collaboration Opportunities:
Contribute to Healthy Homes Hub’s mission by sharing best practices, participating in action learning programmes like the Retrofit Society, or co-developing solutions with academic and industry leaders.
