There’s something uniquely satisfying about seeing a project come to life – especially when it involves preserving a piece of local history. On a recent drive through West Sussex, we passed a development near Horsham that we helped bring into being: a West Sussex barn conversion project that has now nearly sold out.
This thoughtful and sensitive conversion is an example of how historic buildings can be revived for modern living, without losing their character or charm. Our Sussex office worked alongside a local developer and their in-house build team to transform these disused agricultural structures into four exceptional new homes.
Breathing Life into a Historic Setting
This particular West Sussex barn conversion involved a collection of redundant farm buildings, including what is believed to be the oldest mechanised threshing barn in the county. Once part of the renowned Warnham Estate, the site carried historical significance and architectural interest, but had been unused for many years.
Rather than demolish and start anew, the developer wanted to retain and restore the existing buildings, preserving the site’s agricultural legacy while making it suitable for modern living.
Conservation Meets Collaboration
Toynbee Associates was brought in to lead the planning and design strategy. We worked closely with the developer’s build team to assess the condition of each structure. Where possible, original elements such as timber frames and historic brickwork were preserved. Where repairs were needed, materials were carefully selected to match the original fabric of the buildings.
This collaborative approach allowed us to retain the unique character of the site while delivering practical, energy-efficient homes that meet the needs of today’s buyers.
Four Unique Homes with Historic Charm
The completed barn conversion now features:
- Two 3-bedroom homes, ideal for families or downsizers
- Two 4/5-bedroom homes, offering flexible space for modern living
Each unit has been designed with an emphasis on open-plan living, natural light, and original features—such as exposed beams and reclaimed materials. The layout respects the original footprint of the old stables, dairy, and barns, keeping the site’s rural charm fully intact.
You can see images and further details of the project on our case studies page.
A Positive Impact for the Local Market
The conversion didn’t just bring life back to neglected buildings, it contributed to the local housing supply and generated strong buyer interest. The development’s proximity to Horsham, combined with its rural setting and unique architecture, made it highly desirable.
Importantly, the project also serves as a strong example of how small-scale, design-led development can align with local policy goals. Horsham District Council has placed increasing emphasis on sustainable rural development and the reuse of redundant buildings, as outlined in its planning policy framework. This barn conversion not only preserved the agricultural and architectural heritage of the site but also delivered much-needed homes without placing pressure on greenfield land.
Why It Matters
At Toynbee Associates, we specialise in unlocking the potential of complex sites—whether in conservation areas, rural locations, or with listed buildings. This conversion is a textbook example of our approach:
- Conserve what matters
- Collaborate with local partners
- Create homes with soul and character
It’s also a reminder that sustainability isn’t just about technology but that it’s about making the most of what’s already there.
Are You Planning a Barn Conversion?
Whether you’re a landowner, architect, or developer considering a similar project, our team can help navigate planning regulations, heritage constraints, and design challenges.
➡️ Contact our Sussex office to discuss your West Sussex barn conversion or other rural development plans.
