Mid Cornwall · PL24 · Cornwall Council Mid
One studio for renovation in Tregrehan
Cornish housing stock is brilliant and infuriating in equal measure. We renovate cottages, farmhouses, mid-century homes and post-war estates — opening up layouts, fixing damp, adding light and bringing the property up to a standard worth living in. The way we approach renovation in Tregrehan starts with a measured walk-round — Tregrehan is an estate-influenced village in the PL24 area, with designed landscape, older cottages and rural edges close together, with a building stock that leans toward detached homes and small infill plots.
Tregrehan sits in Mid Cornwall — just off the A390; covering PL24 from St Austell, Bugle, St Dennis outward.
- Rural / open-countryside policy area
- ✓Measured-survey accuracy from day one
- ✓One studio — design, planning and build under one roof
- ✓rural policy area experience built into the fee
- ✓Local to Mid Cornwall — not a national franchise
Free · No obligation
Free Tregrehan feasibility call
Tell us about your renovation. We reply within 1 working day — no obligation.
Page purpose
Drawings only, or drawings through to handover in Tregrehan?
Both routes are open on a PL24 project, and the honest answer depends on whether you already have a builder you trust. Plenty of Tregrehan 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 PL24 scope, not as one opaque figure
Scope
Scope options for Tregrehan clients
Not every project needs every stage. On a Tregrehan 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.
Building regulation drawings
Full Plans sets with sections, construction notes and coordinated structural information.
Construction and technical drawings
1:10 and 1:20 details for the parts of the job builders normally have to guess at.
Structural coordination
Calculations coordinated with the drawings so building control sees one consistent story.
Local watch-list
Local snags worth knowing before drawing a Tregrehan renovation.
Watch #1
Local Plan tests on isolated dwellings, plus lane access for plant and deliveries around Tregrehan
Watch #2
Party Wall notices and shallow roof voids typical of estate cottages in the PL24 district
Watch #3
Trussed roofs and shallow foundations in the later PL24 estates, which change the structural strategy
Who this is for
Straight facts about working with us here
- Applications for Tregrehan are handled through Cornwall Council, with St Austell the nearest planning office we deal with regularly.
- Design and build are offered from the same studio, which means the person answering your Tregrehan questions has seen the detail built.
- Drawings, planning and building regulations are all produced in-house, so a renovation enquiry does not get passed between firms.
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.
What we focus on
Renovations considerations specific to Tregrehan.
01
Listed and curtilage-listed properties need Listed Building Consent for many internal alterations that wouldn't normally need approval.
02
Original fireplaces, slate floors, beams and joinery are often worth rescuing; the design conversation should start with what stays, not what goes.
03
Older Cornish properties are often built with cob, rubble or solid granite — modern insulation strategies that work in cavity walls cause damp problems in solid construction. Breathable build-ups matter.
04
Asbestos surveys are standard for anything pre-2000 — we factor a survey into the programme before stripping out begins.
Quick check
Want a straight answer on whether your Tregrehan 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 Tregrehan and the PL24 area.
Local context
Why Tregrehan is its own job.
Two things shape a Tregrehan application: parish character and policy. On policy — landscape setting, curtilage history and estate character need a precise design rationale rather than a standard suburban approach. For renovation 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 Tregrehan programme tends to run on time. On detached homes in particular — the kind you'll also find toward Nanpean — the renovation brief always has to read the existing fabric first.
Planning note
Most Cornish renovations don't need planning — but listed status, curtilage listing, Conservation Area designation and material changes can all change that picture.
Our process
How a Tregrehan renovation project runs.
Step 1
Survey
Measured survey, condition assessment, services check and listed status review.
Step 2
Design
Layout options, material strategy and a clear list of what stays and what changes.
Step 3
Approvals
Listed Building Consent and building regulations as needed.
Step 4
Strip-out and works
Carefully sequenced demolition, structural works and rebuild.
Step 5
Finish and handover
Joinery, decoration, snagging and documentation pack.
Whole-house renovations typically run six to fourteen months on site; partial remodels two to four months.
FAQs
Tregrehan Renovations — local questions answered.
- What about damp and old walls?
- We assess the cause first — usually rising damp myths, blocked vents, hard cement renders trapping moisture, or roofs needing attention. A breathable repair strategy fixes most of it without chemical intervention. In Tregrehan specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- We live in the house. Can a renovation in Tregrehan 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 Tregrehan are often easier if you move out for a few weeks. We set that expectation at feasibility stage rather than halfway through.
- How long does a renovation take?
- Single rooms in weeks, kitchens in two to three months, whole-house renovations in six to fourteen months depending on size and listed status.
- Can I live in the house during the work?
- Sometimes yes, often no. Single-room remodels and phased work can be liveable; whole-house renovations involving rewires, replumbing or floor lifting almost never are. We're honest about this at the brief.
- How much does a full renovation cost in Cornwall?
- A whole-house renovation typically lands between £1,800 and £3,000 per square metre depending on condition, listed status and finish level. We survey before quoting and don't price by guesswork.
- Can you renovate and extend at the same time?
- Yes, and often it's the right call — the planning, regs and disruption all happen once instead of twice. We design and price it as a single project.
Tregrehan is part of St Austell
Tregrehan sits inside the St Austell catchment — we cover both as one renovation territory.
See Renovations in St Austell →Keep reading
Where to go next from Tregrehan
Tregrehan is covered from our St Austell 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.
Other services in Tregrehan
Nearby places we cover
Whichever route suits your PL24 project, the survey and feasibility work is the same, so nothing is wasted. farm buildings in particular need a tailored structural answer.
Get a feasibility view on your Tregrehan home Bring the deeds, we will bring the survey kit for the renovation.
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