Mid Cornwall · TR3 · Cornwall Council Mid
Bespoke New Builds in Threemilestone
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. Reading Threemilestone on the ground is half of the new build job — 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 modern Persimmon, Bellway and Wainhomes estates and office and retail conversions.
Threemilestone sits in Mid Cornwall — just off the A390; covering TR3 from Truro, Shortlanesend, Playing Place outward.
- ✓Fixed-fee planning packages, no surprise invoices
- ✓Measured-survey accuracy from day one
- ✓One studio — design, planning and build under one roof
- ✓Local to Mid Cornwall — not a national franchise
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Free Threemilestone feasibility call
Tell us about your new build. We reply within 1 working day — no obligation.
Local watch-list
What usually catches new build projects out in Threemilestone.
Watch #1
Trussed roofs and shallow foundations in the later TR3 estates, which change the structural strategy
Who this is for
In Threemilestone the new build brief is almost always a private homeowner improving a forever home — so we lead with feasibility and long-term value, not show-home rhetoric.
Scope
The parts of the job we can take on in Threemilestone
These stages can be bought separately. Most TR3 projects use three of them.
Measured survey
An accurate record of what is actually there, which is where most avoidable cost is removed.
Full design and build
One contract from first sketch to handover, with the same team on paper and on site.
Structural coordination
Calculations coordinated with the drawings so building control sees one consistent story.
Planning application drawings
Existing and proposed plans, elevations, site and block plans drawn to validation standard.
Construction and technical drawings
1:10 and 1:20 details for the parts of the job builders normally have to guess at.
Who this is for
What we can genuinely back up in Threemilestone
- Drawings, planning and building regulations are all produced in-house, so a new build enquiry does not get passed between firms.
- Design and build are offered from the same studio, which means the person answering your Threemilestone questions has seen the detail built.
- Applications for Threemilestone are handled through Cornwall Council, with St Austell the nearest planning office we deal with regularly.
Planning rules change and every site is different. For the final position on your address, check with Cornwall Council as the local planning authority or the Planning Portal.
Keep reading
Other work we do around Threemilestone
Threemilestone is covered from our Truro run. Being a smaller place, the local detail matters more than the headline policy: lane access, neighbour proximity and what the immediate street already looks like.
Page purpose
Drawings only, or drawings through to handover in Threemilestone?
Both routes are open on a TR3 project, and the honest answer depends on whether you already have a builder you trust. Plenty of Threemilestone clients take the drawings, tender them locally, then come back to us for the build if the numbers do not stack up.
- Route one: feasibility, planning and a tender-ready technical pack
- Route two: the same pack, then the build under one contract
- Either way the survey and feasibility work is identical, so the decision can wait
- Fees quoted per stage against the TR3 scope, not as one opaque figure
Local context
Why Threemilestone is its own job.
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 new build specifically, Threemilestone sits outside the headline designations, which usually gives a slightly more flexible starting point — but parish-level character still matters. So every Threemilestone job runs as a TR3-specific piece of work — local policy, local fabric, local builders. Most of our new build work in Threemilestone lands on modern Persimmon, Bellway and Wainhomes estates, with detailing that has to nod to the wider Shortlanesend streetscape.
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.
What we focus on
New Builds considerations specific to Threemilestone.
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
Self-build CIL exemption requires the right documentation in the right order; missing a step costs five-figure sums.
04
Cornwall's housing policy increasingly favours principal residence and replacement dwelling schemes over open-market new builds in some parishes.
Quick check
Want a straight answer on whether your Threemilestone project is worth pursuing?
Send a few details — we'll come back within 1 working day with a plain-English view on planning risk, likely cost band and whether it's a project we'd take on.
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Get a free feasibility view
For projects in Threemilestone and the TR3 area.
Our process
How a Threemilestone 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.
FAQs
Threemilestone New Builds — local questions answered.
- 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. In Threemilestone specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- We live in the house. Can a new build in Threemilestone be done while we stay put?
- Usually yes for single-storey and rear work, with a temporary kitchen or bathroom arrangement agreed before the start. Whole-house remodels and roof work in Threemilestone are often easier if you move out for a few weeks. We set that expectation at feasibility stage rather than halfway through.
- 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.
Threemilestone is part of Truro
Threemilestone sits inside the Truro catchment — we cover both as one new build territory.
See New Builds in Truro →Local proof — Our Mid Cornwall workload means a Threemilestone new build project never has to wait for an out-of-county team to drive down.
Get a free feasibility viewOther services in Threemilestone
Nearby places we cover
The TR3 stretch of Mid Cornwall has its own rhythm; our new build work respects it, and Cornwall Council usually responds in kind. Applications are dealt with through Cornwall Council, with St Austell the office we deal with most for TR3.
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