Mid Cornwall · TR3
One studio for architectural design in Threemilestone
We prepare site-specific concept design, planning drawings and supporting documents that give your project the strongest possible chance of consent — and a clear path through Cornwall Council's planning process. Working in Threemilestone means starting from the TR3 context — Threemilestone is the western residential and retail-park suburb of Truro, with the West Cornwall Hospital site nearby and significant new estate development on the Langarth Garden Village land, with a building stock that leans toward office and retail conversions and modern Persimmon, Bellway and Wainhomes estates.
Threemilestone sits in Mid Cornwall — covering TR3 from Truro, Shortlanesend, Playing Place outward.
- ✓ Fixed-fee planning packages, no surprise invoices
- ✓ Measured-survey accuracy from day one
- ✓ standard policy area experience built into the fee
- ✓ Local to Mid Cornwall — not a national franchise
Our process
How a Threemilestone architectural design project runs.
Step 1
Brief and site visit
We meet on site, walk the plot and listen to how you want to live in the finished space.
Step 2
Feasibility and sketch options
Two or three design directions tested against budget, planning policy and site constraints.
Step 3
Concept refinement
We develop the chosen direction into a coordinated set of plans, elevations and sections.
Step 4
Planning submission
We submit the application, monitor it through validation and respond to any officer queries.
Step 5
Decision and next stage
On approval we move into building regulations and tender drawings.
Most architectural-only commissions run from a few weeks for small householder applications to several months for new builds and listed work.
Local proof — We typically have one or two architectural design jobs live in the TR3 area at any time, so the local planning officers know our drawings on sight.
Get a free feasibility viewWhat we focus on
Architectural Design considerations specific to Threemilestone.
01
Cornwall Council planning officers expect drawings that respond to the local vernacular — slate, render, granite, timber — rather than generic suburban detailing.
02
Listed buildings and curtilage structures need a separate Listed Building Consent application, drawn at a level of detail beyond standard planning.
03
Design and Access Statements are increasingly scrutinised — generic templates rarely cut it on sensitive Cornish sites.
04
Pre-application advice often saves months on contentious sites; we factor it into the programme where it adds value.
Local context
Why Threemilestone is its own job.
Two things shape a Threemilestone application: parish character and policy. On policy — outside Conservation Area and AONB. Langarth Garden Village (3,500+ homes) is reshaping the west of Truro with strict design code expectations on adjacent sites. For architectural design specifically, Threemilestone sits outside the headline designations, which usually gives a slightly more flexible starting point — but parish-level character still matters. Get that local reading right and the rest of the Threemilestone programme tends to run on time. On office and retail conversions in particular — the kind you'll also find toward Truro — the architectural design brief always has to read the existing fabric first.
Planning note
Whether your project is permitted development, a householder application or full planning, the route through Cornwall Council shapes the drawings we prepare from day one.
Local watch-list
What usually catches architectural design projects out in Threemilestone.
Watch #1
Parish-level character expectations that don't appear on any policy map
Threemilestone is part of Truro
Threemilestone sits inside the Truro catchment — we cover both as one architectural design territory.
See Architectural Design in Truro →Local fabric
Threemilestone architectural design — the local-studio difference.
Building stock
Across Threemilestone (TR3) we work on 1970s and 1980s estates, modern Persimmon, Bellway and Wainhomes estates, self-build plots in the Garden Village, office and retail conversions. Each stock type drives a different architectural design response — office and retail conversions in particular needs careful detailing here.
Parish & policy
Threemilestone sits in the parish of Kenwyn, which matters for how parish-level consultation lands on a architectural design application.
Coverage
We cover TR3 from our studio, with regular architectural design jobs also running in Truro, Shortlanesend, Playing Place. Most Threemilestone site visits get booked within the same week.
Can you handle both planning and build in Threemilestone?
Yes — design, planning, building regs and full construction run under one roof. For clients with an existing Threemilestone builder we can stop at a tender-ready Full Plans pack instead.
Request a free visitWho this is for
Threemilestone runs the full mix — owner-occupier, holiday-let, commercial and the occasional smallholding — so we scope every architectural design enquiry from the use-class up.
FAQs
Threemilestone Architectural Design — local questions answered.
- What happens if planning is refused?
- We review the officer's reasons, advise honestly on the strength of an appeal, and where a redesign is the better route, prepare a revised scheme. The free re-submission window inside twelve months can be used strategically. In Threemilestone specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- Will you visit the site before designing?
- Always. Cornish sites have wind, light, slope and access quirks that don't show up on a Google Street View. A site visit is built into every fee proposal.
- Do I need planning permission or is it permitted development?
- It depends on the property, the size and position of the works, and whether you are in a Conservation Area, AONB or Article 4 area. We'll review your address against the General Permitted Development Order at first consultation and tell you straight.
- Do you produce building regulations drawings as well?
- Yes. Once planning is approved we prepare the full building regs package — sections, construction details, structural coordination and specification — drawn at 1:50 and 1:10 so the builder and building control have everything they need.
- Can you handle a Certificate of Lawfulness instead?
- Yes — for permitted development work it's worth the small extra step. You get a formal council certificate confirming your build is lawful, which protects you on resale and is often required by mortgage lenders.
Other services in Threemilestone
Nearby places we cover
If you're balancing ambition against TR3 planning realism, our Threemilestone architectural design work threads that needle without the usual drama.