Mid Cornwall · PL26 · Cornwall Council Mid
Renovations for Trethurgy (PL26)
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. Working in Trethurgy means starting from the PL26 context — Trethurgy is a small rural hamlet in the PL26 area, with scattered homes, lanes and a deliberately quiet settlement pattern, with a building stock that leans toward cottages and converted barns.
Trethurgy sits in Mid Cornwall — just off the A390; covering PL26 from St Austell, Bugle, St Dennis outward.
- Rural / open-countryside policy area
- ✓Fixed-fee planning packages, no surprise invoices
- ✓Measured-survey accuracy from day one
- ✓Same team on paper as on site
- ✓Local to Mid Cornwall — not a national franchise
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Free Trethurgy 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 Trethurgy?
Both routes are open on a PL26 project, and the honest answer depends on whether you already have a builder you trust. Plenty of Trethurgy 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 PL26 scope, not as one opaque figure
Scope
Scope options for Trethurgy clients
These stages can be bought separately. Most PL26 projects use three of them.
Building regulation drawings
Full Plans sets with sections, construction notes and coordinated structural information.
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.
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 Trethurgy renovation.
Watch #1
Local Plan tests on isolated dwellings, plus lane access for plant and deliveries around Trethurgy
Watch #2
Party Wall notices and shallow roof voids typical of cottages in the PL26 district
Who this is for
Straight facts about working with us here
- Drawings, planning and building regulations are all produced in-house, so a renovation enquiry does not get passed between firms.
- Applications for Trethurgy 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 Trethurgy questions has seen the detail built.
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 Trethurgy.
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 Trethurgy 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 Trethurgy and the PL26 area.
Local context
Why Trethurgy is its own job.
In Trethurgy the planning picture is specific: the main planning test is usually whether the proposal remains subordinate, locally detailed and acceptable on access, drainage and neighbour amenity. 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. That local reading is what makes a Trethurgy (PL26) project different from a generic Cornwall scheme — and is the whole reason we work this way. On cottages 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 Trethurgy 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
Trethurgy Renovations — local questions answered.
- 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. In Trethurgy specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- 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.
- 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.
- We live in the house. Can a renovation in Trethurgy 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 Trethurgy are often easier if you move out for a few weeks. We set that expectation at feasibility stage rather than halfway through.
- 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.
- Do I need planning permission to renovate internally?
- Usually no — except on listed buildings, where Listed Building Consent is needed for many internal alterations. We confirm the position before any wall comes down.
Trethurgy is part of St Austell
Trethurgy 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 Trethurgy
Trethurgy 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 Trethurgy
Nearby places we cover
The renovation jobs we're proudest of in Trethurgy are the ones where the planning route was clear before a single elevation was drawn. Lane access and rural policy tests shape what is realistic on an isolated plot.
Pencil in a free Trethurgy visit this week We are on the A390 regularly.
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