North Cornwall · PL30
Extensions for Warleggan (PL30)
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 Warleggan starts with a measured walk-round — Warleggan is a moorland-edge hamlet in the PL30 area, where exposed weather, narrow lanes and rural character set the brief, with a building stock that leans toward farm buildings and converted barns.
Warleggan sits in North Cornwall — covering PL30 from Bodmin, St Breward, Washaway outward.
- Rural / open-countryside policy area
- ✓ Measured-survey accuracy from day one
- ✓ One studio — design, planning and build under one roof
- ✓ Fixed-fee planning packages, no surprise invoices
- ✓ Same team on paper as on site
Our process
How a Warleggan 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 — We typically have one or two extension jobs live in the PL30 area at any time, so the local planning officers know our drawings on sight.
Get a free feasibility viewWhat we focus on
Extensions considerations specific to Warleggan.
01
Drainage on older Cornish properties is rarely on a clean modern map; CCTV survey before design is often money well spent.
02
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.
03
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.
04
Cornish granite and slate-hung walls react differently to new openings than modern brickwork — lintel choice and structural sequencing matter.
Local context
Why Warleggan is its own job.
In Warleggan the planning picture is specific: rural policy, landscape impact and services such as drainage are usually the key constraints, especially outside settlement boundaries. 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. That local reading is what makes a Warleggan (PL30) project different from a generic Cornwall scheme — and is the whole reason we work this way. On farm buildings in particular — the kind you'll also find toward Nanstallon — 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
Common Warleggan pitfalls we plan around.
Watch #1
Tighter Local Plan tests on isolated rural dwellings
Warleggan is part of Bodmin
Warleggan sits inside the Bodmin catchment — we cover both as one extension territory.
See Extensions in Bodmin →Local fabric
One PL30 studio, one extension job — start to finish.
Building stock
Across Warleggan (PL30) we work on stone cottages, farm buildings, isolated houses, converted barns, small rural infill. Each stock type drives a different extension response — farm buildings in particular needs careful detailing here.
Parish & policy
Warleggan sits in the parish of Warleggan, which matters for how parish-level consultation lands on a extension application.
Coverage
We cover PL30 from our studio, with regular extension jobs also running in Bodmin, St Breward, Washaway. Most Warleggan site visits get booked within the same week.
Can you handle both planning and build in Warleggan?
Yes — design, planning, building regs and full construction run under one roof. For clients with an existing Warleggan builder we can stop at a tender-ready Full Plans pack instead.
Request a free visitWho this is for
Warleggan 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
Warleggan 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 Warleggan 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 Warleggan
Nearby places we cover
The PL30 stretch of North Cornwall has its own rhythm; our extension work respects it, and Cornwall Council usually responds in kind.