East Cornwall · PL11
One studio for extension in Crafthole
Extensions are the bread and butter of Cornish homes — adding the kitchen-diner the original layout never had, the bedroom for a growing family, or the light and views the back of the house should always have had. Working in Crafthole means starting from the PL11 context — Crafthole is a commuter village in the PL11 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.
Crafthole sits in East Cornwall — covering PL11 from Torpoint, Millbrook, Antony outward.
- Rural / open-countryside policy area
- ✓ Measured-survey accuracy from day one
- ✓ One studio — design, planning and build under one roof
- ✓ Free first site visit, no obligation
- ✓ Local to East Cornwall — not a national franchise
Our process
How a Crafthole extension project runs.
Step 1
Brief
We meet on site, talk through how you live now and what's missing from the current layout.
Step 2
Design
Two or three sketch directions with rough budgets, then refinement of the chosen route.
Step 3
Approvals
Planning or Cert of Lawfulness, then a full building regs package.
Step 4
Build
Either through your own builder with our drawings, or as a full build by our team.
Step 5
Handover
Snag, certify, hand over the keys to your new space.
Typical single-storey rear extensions run twelve to twenty weeks on site; two-storey and wraparound projects sixteen to thirty weeks.
Local proof — Our East Cornwall workload means a Crafthole extension project never has to wait for an out-of-county team to drive down.
Get a free feasibility viewWhat we focus on
Extensions considerations specific to Crafthole.
01
Permitted development for rear extensions runs to four metres on a detached house, three on a semi or terrace — but Article 4 areas remove this in some parishes.
02
Extensions over a certain proportion of the original house trigger full Part L upgrade obligations to the existing building — worth knowing before brief is set.
03
Cornish granite and slate-hung walls react differently to new openings than modern brickwork — lintel choice and structural sequencing matter.
04
Wind and sea-spray exposure can drive material choices on west-facing extensions; we detail accordingly.
Local context
Why Crafthole is its own job.
Two things shape a Crafthole 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 extension 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 Crafthole programme tends to run on time. On older cottages in particular — the kind you'll also find toward St John — the extension brief always has to read the existing fabric first.
Planning note
Most extensions in Cornwall are either permitted development or a straightforward householder application — but Conservation Area and AONB sites need a more careful design conversation upfront.
Local watch-list
Crafthole-specific issues we screen on the first visit.
Watch #1
Tighter Local Plan tests on isolated rural dwellings
Crafthole is part of Torpoint
Crafthole sits inside the Torpoint catchment — we cover both as one extension territory.
See Extensions in Torpoint →Local fabric
What sets a Crafthole extension brief apart.
Building stock
Across Crafthole (PL11) we work on post-war semis, bungalows, modern estates, older cottages, garden infill plots. Each stock type drives a different extension response — older cottages in particular needs careful detailing here.
Parish & policy
Crafthole sits in the parish of Crafthole, which matters for how parish-level consultation lands on a extension application.
Coverage
We cover PL11 from our studio, with regular extension jobs also running in Torpoint, Millbrook, Antony. Most Crafthole site visits get booked within the same week.
Can you handle both planning and build in Crafthole?
Yes — design, planning, building regs and full construction run under one roof. For clients with an existing Crafthole builder we can stop at a tender-ready Full Plans pack instead.
Request a free visitWho this is for
Crafthole runs the full mix — owner-occupier, holiday-let, commercial and the occasional smallholding — so we scope every extension enquiry from the use-class up.
FAQs
Crafthole Extensions — local questions answered.
- What about the Party Wall Act?
- If you share a wall with a neighbour or build close to a boundary, the Act applies. We flag it early, recommend a surveyor and keep the programme aligned with the notice period. In Crafthole specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- How much does an extension cost in Cornwall?
- Build costs in Cornwall typically run from around £2,200 to £3,200 per square metre for a good-quality single-storey extension, more for kitchen-grade fit-out or complex glazing. We give a realistic budget before drawings start, not after.
- Can you handle the build as well as the design?
- Yes — that's the whole point of the studio. One contract, one point of contact, no finger-pointing between architect and builder when something needs a decision on site.
- Do I need planning permission for an extension?
- Often no — single-storey rear extensions, side extensions and modest two-storey additions can sit inside permitted development on a typical detached house. Conservation Areas, AONB and Article 4 zones remove some of those rights, so we always check the address first.
- Will my house be liveable during the build?
- For most rear and side extensions, yes — we sequence the works so the kitchen and one bathroom stay functional until the new build is watertight and connected.
Other services in Crafthole
Nearby places we cover
If you're balancing ambition against PL11 planning realism, our Crafthole extension work threads that needle without the usual drama.