Aerial view over Winchester, with a Thistle conversion project in the foreground
Feasibility-first architecture

Nationwide Feasibility
First Architecture.

Thistle is a developer-led architecture practice specialising in feasibility studies and the retrofit and reuse of existing buildings. We test what a building can become, give you a clear Go or No-Go in five days, then design and deliver the conversion.

See how it works

No obligation. Response within one working day.

98.5%Planning success rateAcross all submitted schemes
5 daysGuaranteed turn aroundSubmission to recommendation
86%Faster than traditional routes5 days vs 2 to 6 weeks

Trusted by developers across the UK

Property & PoppadomsHMO AcademyBrentor GroupFrame 4DNB Homes

Our Process

Our Five-Step
Feasibility Process.

01

Upload Property Details

Share your property's address with a few basic details: size, floor count, and current use. Takes under two minutes.

02

Project Data Gathering Session

An instant call with Jodi, our property expert, to gather the details we need and walk through your goals for the site. A short, focused conversation that keeps the five-day clock moving.

03

Automated Analysis

Our system checks planning history, site constraints, density data, and comparable schemes in your local area. Automating the laborious part is what frees our architects to spend their time on the sketch scheme.

04

Sketch Scheme Stage

One of our architects will carry out the sketch scheme analysis to determine the best possible layout based on your brief, local comparables, local and national constraints, and the best commercial outcome.

05

Final Meeting

You'll be sent a video call link after uploading your information. We'll review the completed feasibility together after 5 days, so you can bid, walk away, or move into conveyancing with confidence.