At Sonnet, we believe in impact that lasts – and in evidence that shows when change is really happening.
That’s why we’re proud to share early findings from our ongoing evaluation of Grosvenor Hart Homes (GHH) – a pioneering social investment initiative launched in partnership with Cheshire West and Chester Council and backed by the Duke of Westminster.
The vision behind GHH is ambitious but clear: provide high-quality, affordable homes with wraparound support for young people leaving care and vulnerable families. These homes aren’t just bricks and mortar – they’re part of a bigger offer. One that includes practical help with employment, health, financial stability and emotional wellbeing, all designed around the people who live there.
What we’ve learned so far
This interim evaluation tells a powerful story – even with a relatively small number of tenants, the green shoots are already visible:
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Tenants are building trust and starting to thrive. On-site Practitioners with manageable caseloads are making a huge difference – their consistent, relational approach means tenants feel safer, listened to, and more willing to share what they need.
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Support works best when it’s holistic and joined-up. From mental health to employment advice, what makes the model work is its coordination. Hiring a dedicated in-house mental health lead, for example, transformed sleep and wellbeing outcomes for tenants almost immediately.
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Partnership is key. GHH is working side-by-side with the council and other local partners to catch problems early and tackle them together – not in silos.
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The economic case is strong. The evaluation shows the model isn’t just improving lives – it’s likely to save public money in the long term. Prevention really does pay.
Read the report: Grosvenor Hart Homes - Interim Evaluation
What’s Next
The GHH team is already using these insights to refine and strengthen their approach – adding more targeted support for physical health, and starting to measure the value of safe, inclusive community spaces.
For Sonnet, this work goes to the heart of what we do: helping organisations design and deliver interventions that work – and proving it. We’re excited to keep walking alongside GHH as they scale what’s working, demonstrate long-term value to government, and help change the system for good.
