North Cornwall · PL27
One studio for extension in St Eval
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. The way we approach extension in St Eval starts with a measured walk-round — St Eval is an estate-influenced village in the PL27 area, with designed landscape, older cottages and rural edges close together, with a building stock that leans toward farm buildings and converted outbuildings.
St Eval sits in North Cornwall — covering PL27 from Padstow, Trevone, Harlyn outward.
- Rural / open-countryside policy area
- ✓ Local to North Cornwall — not a national franchise
- ✓ Same team on paper as on site
- ✓ rural policy area experience built into the fee
- ✓ Measured-survey accuracy from day one
Our process
How a St Eval 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 — Most St Eval homeowners come to us after a extension quote elsewhere felt vague on planning — we lead with feasibility instead.
Get a free feasibility viewWhat we focus on
Extensions considerations specific to St Eval.
01
Cornish granite and slate-hung walls react differently to new openings than modern brickwork — lintel choice and structural sequencing matter.
02
Wind and sea-spray exposure can drive material choices on west-facing extensions; we detail accordingly.
03
Drainage on older Cornish properties is rarely on a clean modern map; CCTV survey before design is often money well spent.
04
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.
Local context
Why St Eval is its own job.
Two things shape a St Eval 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 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 St Eval programme tends to run on time. On farm buildings in particular — the kind you'll also find toward St Merryn — 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
Local snags worth knowing before drawing a St Eval extension.
Watch #1
Tighter Local Plan tests on isolated rural dwellings
St Eval is part of Padstow
St Eval sits inside the Padstow catchment — we cover both as one extension territory.
See Extensions in Padstow →Local fabric
What sets a St Eval extension brief apart.
Building stock
Across St Eval (PL27) we work on estate cottages, farm buildings, detached homes, converted outbuildings, small infill plots. Each stock type drives a different extension response — farm buildings in particular needs careful detailing here.
Parish & policy
St Eval sits in the parish of St Eval, which matters for how parish-level consultation lands on a extension application.
Coverage
We cover PL27 from our studio, with regular extension jobs also running in Padstow, Trevone, Harlyn. Most St Eval site visits get booked within the same week.
Can you handle both planning and build in St Eval?
Yes — design, planning, building regs and full construction run under one roof. For clients with an existing St Eval builder we can stop at a tender-ready Full Plans pack instead.
Request a free visitWho this is for
St Eval 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
St Eval 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 St Eval 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.
- How long does the whole process take?
- Allow roughly three months for design and approvals, then twelve to twenty weeks on site for a typical single-storey extension. Wraparounds and two-storey add-ons take longer, mostly through approval and groundworks.
- 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.
Other services in St Eval
Nearby places we cover
The PL27 stretch of North Cornwall has its own rhythm; our extension work respects it, and Cornwall Council usually responds in kind.