Mid Cornwall · PL25
One studio for new build in Trewoon
A bespoke new build is the longest project we do, and the most rewarding. From plot appraisal through planning, building regulations and construction, you work with one team from the first sketch to the handover walk-round. The way we approach new build in Trewoon starts with a measured walk-round — Trewoon is a commuter village in the PL25 area, with everyday family housing, edge-of-village plots and quick routes to its parent town, with a building stock that leans toward older cottages and post-war semis.
Trewoon sits in Mid Cornwall — covering PL25 from St Austell, Bugle, St Dennis outward.
- Rural / open-countryside policy area
- ✓ One studio — design, planning and build under one roof
- ✓ Local to Mid Cornwall — not a national franchise
- ✓ 30+ years of Cornwall Council approvals
- ✓ Measured-survey accuracy from day one
Our process
How a Trewoon new build project runs.
Step 1
Plot review
Site visit, planning history check, designation review and an honest feasibility verdict.
Step 2
Concept design
Sketches that test the plot in massing, orientation and approach before any drawings are committed.
Step 3
Planning
Pre-app, full planning, consultee management and condition discharge.
Step 4
Technical design and build prep
Building regs, structural design, services strategy and contractor procurement.
Step 5
Construction and handover
Build delivered under contract administration with regular client reviews.
Most bespoke new builds run eighteen to thirty months from instruction to keys, depending on site, planning route and build complexity.
Local proof — Most Trewoon new build clients we work with are second-time builders — they've seen the templated approach fail once already.
Get a free feasibility viewWhat we focus on
New Builds considerations specific to Trewoon.
01
AONB and Heritage Coast designations apply to large stretches of the county; isolated new builds outside settlement boundaries face a much higher policy bar.
02
Off-grid services — package treatment plants, borehole supply, off-mains gas — are common on rural Cornish plots and need designing, not assuming.
03
Replacement dwellings have specific volumetric tests — getting the ratio between existing footprint and proposed floor area right is the difference between approval and refusal.
04
Self-build CIL exemption requires the right documentation in the right order; missing a step costs five-figure sums.
Local context
Why Trewoon is its own job.
Two things shape a Trewoon application: parish character and policy. On policy — applications here usually turn on neighbour amenity, parking, overlooking and whether new work fits the rhythm of existing streets. For new build specifically, Cornwall Council's Local Plan applies tighter tests to isolated rural dwellings here, so design rationale and policy fit need to be set out clearly from the outset. Get that local reading right and the rest of the Trewoon programme tends to run on time. On older cottages in particular — the kind you'll also find toward Nanpean — the new build brief always has to read the existing fabric first.
Planning note
Cornwall's planning policy on new dwellings is among the most restrictive in England outside Greater London. The first conversation should be a planning conversation, not a design one.
Local watch-list
What usually catches new build projects out in Trewoon.
Watch #1
Tighter Local Plan tests on isolated rural dwellings
Trewoon is part of St Austell
Trewoon sits inside the St Austell catchment — we cover both as one new build territory.
See New Builds in St Austell →Local fabric
Trewoon new builds — the local-studio difference.
Building stock
Across Trewoon (PL25) we work on post-war semis, bungalows, modern estates, older cottages, garden infill plots. Each stock type drives a different new build response — older cottages in particular needs careful detailing here.
Parish & policy
Trewoon sits in the parish of Trewoon, which matters for how parish-level consultation lands on a new build application.
Coverage
We cover PL25 from our studio, with regular new build jobs also running in St Austell, Bugle, St Dennis. Most Trewoon site visits get booked within the same week.
Can you handle both planning and build in Trewoon?
Yes — design, planning, building regs and full construction run under one roof. For clients with an existing Trewoon builder we can stop at a tender-ready Full Plans pack instead.
Request a free visitWho this is for
Trewoon runs the full mix — owner-occupier, holiday-let, commercial and the occasional smallholding — so we scope every new build enquiry from the use-class up.
FAQs
Trewoon New Builds — local questions answered.
- How long does the whole project take?
- Allow six to twelve months for design and approvals, then ten to fourteen months on site for a typical four-bedroom new build. Complex sites or long planning routes extend that. In Trewoon specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- What about utilities, drainage and access?
- All designed and applied for as part of the package — water, electric, off-mains drainage where mains isn't viable, and highways access agreement with Cornwall Council where required.
- What's a replacement dwelling and is mine eligible?
- If a habitable dwelling exists on the plot, you can often replace it — within volumetric and design constraints set by Cornwall's Local Plan. Derelict structures sometimes qualify, sometimes don't, depending on lawful use history.
- Can you handle a self-build for me?
- Yes — from feasibility to handover. Many of our clients start as 'self-builders' on paper, then hand the actual build to us once they realise how much project management it takes.
- How much does a new build cost?
- Realistic budgets in Cornwall start around £2,800 per square metre for a good-quality build and rise quickly with bespoke joinery, large glazing, complex sites and high-spec finishes. We work to your number, not against it.
Other services in Trewoon
Nearby places we cover
The PL25 stretch of Mid Cornwall has its own rhythm; our new build work respects it, and Cornwall Council usually responds in kind.