Penwith · TR19 · Cornwall Council West
Bespoke New Builds in Trewellard
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 Trewellard version of this work has its own character — Trewellard is a former mining settlement in the TR19 area, with granite terraces, chapel buildings and industrial landscape character still visible, with a building stock that leans toward granite terraces and workers cottages.
Trewellard sits in Penwith — just off the A30; covering TR19 from Pendeen, Morvah, Lower Boscaswell outward.
- Cornwall AONB
- Cornish Mining World Heritage Site
- Rural / open-countryside policy area
- ✓Measured-survey accuracy from day one
- ✓One studio — design, planning and build under one roof
- ✓Local to Penwith — not a national franchise
- ✓Same team on paper as on site
Free · No obligation
Free Trewellard feasibility call
Tell us about your new build. We reply within 1 working day — no obligation.
Local watch-list
Common Trewellard pitfalls we plan around.
Watch #1
AONB landscape-impact testing on anything read in long views across Penwith
Watch #2
World Heritage Site heritage assessment where changes are visible in the mining landscape
Watch #3
Local Plan tests on isolated dwellings, plus lane access for plant and deliveries around Trewellard
Watch #4
Party Wall notices and shallow roof voids typical of miners cottages in the TR19 district
Who this is for
In Trewellard 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 Trewellard
Not every project needs every stage. On a Trewellard job we scope to what the site and the consent route actually require.
Full design and build
One contract from first sketch to handover, with the same team on paper and on site.
Construction and technical drawings
1:10 and 1:20 details for the parts of the job builders normally have to guess at.
Building regulation drawings
Full Plans sets with sections, construction notes and coordinated structural information.
Planning application drawings
Existing and proposed plans, elevations, site and block plans drawn to validation standard.
Measured survey
An accurate record of what is actually there, which is where most avoidable cost is removed.
Who this is for
What we can genuinely back up in Trewellard
- Design and build are offered from the same studio, which means the person answering your Trewellard questions has seen the detail built.
- Drawings, planning and building regulations are all produced in-house, so a new build enquiry does not get passed between firms.
- Designated-area work is routine here, so heritage and landscape statements are produced alongside the drawings rather than outsourced.
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 Trewellard
Trewellard is covered from our Pendeen 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 Trewellard?
Both routes are open on a TR19 project, and the honest answer depends on whether you already have a builder you trust. Plenty of Trewellard 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 TR19 scope, not as one opaque figure
Local context
Why Trewellard is its own job.
Mining heritage, old plot widths and traditional materials make proportion and detailing more important than generic extension templates. For new build specifically, the surrounding landscape falls inside the Cornwall Area of Outstanding Natural Beauty, so massing, height and landscape impact carry extra weight in any planning decision; the wider area forms part of the Cornish Mining World Heritage Site, which adds a heritage assessment layer to most material changes; 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. So every Trewellard job runs as a TR19-specific piece of work — local policy, local fabric, local builders. Most of our new build work in Trewellard lands on granite terraces, with detailing that has to nod to the wider Morvah 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 Trewellard.
01
Self-build CIL exemption requires the right documentation in the right order; missing a step costs five-figure sums.
02
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 Trewellard 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.
Free · No obligation
Get a free feasibility view
For projects in Trewellard and the TR19 area.
Our process
How a Trewellard 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
Trewellard New Builds — local questions answered.
- 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. In Trewellard specifically, we'd start by checking AONB landscape sensitivity before committing to a direction.
- 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.
- 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.
- We live in the house. Can a new build in Trewellard 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 Trewellard are often easier if you move out for a few weeks. We set that expectation at feasibility stage rather than halfway through.
- 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.
- Can I build a new house on my plot in Cornwall?
- Sometimes yes, sometimes no — and the honest answer needs a planning policy review of the specific site. Settlement boundary, designations, access and policy on isolated dwellings all weigh in. We give a frank read at first consultation rather than a sales pitch.
Trewellard is part of Pendeen
Trewellard sits inside the Pendeen catchment — we cover both as one new build territory.
See New Builds in Pendeen →Local proof — We typically have one or two new build jobs live in the TR19 area at any time, so the local planning officers know our drawings on sight.
Get a free feasibility viewOther services in Trewellard
Nearby places we cover
The TR19 stretch of Penwith has its own rhythm; our new build work respects it, and Cornwall Council usually responds in kind. Lane access and rural policy tests shape what is realistic on an isolated plot.
Get an honest TR19 feasibility view first Most Trewellard visits happen within the week.
Free · No obligation
Book a free visit in Trewellard
No obligation. Reply usually same working day.