Mid Cornwall · TR3
Threemilestone planning — a Mid Cornwall studio
We prepare and submit planning applications to Cornwall Council and, where relevant, the Isles of Scilly authority — handling drawings, statements, validation queries and officer negotiation from start to determination. In Threemilestone, that work is shaped by the place itself — 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 1970s and 1980s estates and office and retail conversions.
Threemilestone sits in Mid Cornwall — covering TR3 from Truro, Shortlanesend, Playing Place outward.
- ✓ Free first site visit, no obligation
- ✓ Plain-English feasibility before any drawings
- ✓ Cornwall Council regulars across every sub-area
- ✓ Local to Mid Cornwall — not a national franchise
Who this is for
Threemilestone runs the full mix — owner-occupier, holiday-let, commercial and the occasional smallholding — so we scope every planning application enquiry from the use-class up.
Local watch-list
Common Threemilestone pitfalls we plan around.
Watch #1
Parish-level character expectations that don't appear on any policy map
Local proof — Most Threemilestone planning application clients we work with are second-time builders — they've seen the templated approach fail once already.
Get a free feasibility viewFAQs
Threemilestone Planning — local questions answered.
- Do you handle listed building consent?
- Yes. Listed Building Consent runs alongside planning where works affect a listed structure, including some interior alterations. The drawing detail and Heritage Statement are fundamentally different from a standard planning pack. In Threemilestone specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- How much does a planning application cost in Cornwall?
- Cornwall Council charges a fixed national fee — currently £258 for a householder application and £578 for a single new dwelling. Our fee for the drawings, statements and submission sits separately and depends on project complexity.
- What if the council asks for more information after submission?
- Common, and usually fixable. Validation requests, ecology comments, highways queries and design tweaks all get handled by us inside the application — no extra fee unless the scope changes substantially.
- Do I need to consult my neighbours before applying?
- You don't have to — the council formally consults them — but a quiet conversation early on usually pays off. Objections from neighbours are weighed by the planning officer and can be the deciding factor on borderline schemes.
- What's the difference between full planning and householder?
- Householder covers extensions, outbuildings and alterations to a single dwelling. Full planning is needed for new dwellings, change of use, and anything affecting curtilage subdivision. We'll confirm which route fits at first review.
Local context
Why Threemilestone is its own job.
The planning backdrop in Mid Cornwall is real, not abstract: 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 planning application specifically, Threemilestone sits outside the headline designations, which usually gives a slightly more flexible starting point — but parish-level character still matters. Treat the TR3 parish brief as the design brief and the Threemilestone application has somewhere to land. Whether the project is on 1970s and 1980s estates in the centre or further out toward Playing Place, the planning application response is locally tuned.
Planning note
Cornwall Council's planning team is among the busiest in the South West. A clean, well-documented submission moves through validation faster than a bare-minimum one.
What we focus on
Planning considerations specific to Threemilestone.
01
Tree Preservation Orders, ecology surveys and neighbour consultation responses can change the validation list mid-application.
02
Article 4 directions in some parishes remove permitted development rights you'd normally rely on elsewhere.
03
Pre-app responses are not binding but they are a strong steer — and worth the fee on anything contentious.
04
Cornwall has more than thirty Conservation Areas and large stretches of AONB; planning weight on materials, mass and form is significantly higher in those zones.
Our process
How a Threemilestone planning application project runs.
Step 1
Initial review
We assess constraints — Conservation Area, AONB, listed status, Article 4, TPOs, flood zone.
Step 2
Strategy
We recommend the right application type and likely fee, programme and supporting documents.
Step 3
Drawing and statement preparation
Plans, elevations, sections, block and location plans, plus DAS and any heritage or ecology input.
Step 4
Submission and validation
We upload to the Planning Portal, pay the council fee on your behalf and respond to validation requests.
Step 5
Determination
We monitor consultation, respond to officer queries and negotiate amendments where it improves the chances of approval.
Householder applications are typically eight to twelve weeks from validation; full planning runs thirteen to sixteen weeks; major or contentious schemes can take longer.
Local fabric
Choosing a planning application team that actually knows TR3.
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 planning application response — 1970s and 1980s estates 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 planning application application.
Coverage
We cover TR3 from our studio, with regular planning application jobs also running in Truro, Shortlanesend, Playing Place. Most Threemilestone site visits get booked within the same week.
What does a first Threemilestone consultation cost?
Nothing. We come to the property, walk the site, talk through what works on a TR3 plot and follow up with a written feasibility note inside a week — no obligation either way.
Request a free visitThreemilestone is part of Truro
Threemilestone sits inside the Truro catchment — we cover both as one planning application territory.
See Planning in Truro →Other services in Threemilestone
Nearby places we cover
The planning application jobs we're proudest of in Threemilestone are the ones where the planning route was clear before a single elevation was drawn.