East Cornwall · PL30
Blisland extension — feasibility first, drawings second
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. In Blisland, that work is shaped by the place itself — Blisland is a Bodmin Moor village with a substantial central green ringed by a Norman church, granite cottages and a tight Conservation Area, with a building stock that leans toward modern AONB-sensitive infill and Victorian villas.
Blisland sits in East Cornwall — covering PL30 from Bodmin outward.
- Conservation Area
- Cornwall AONB
- Rural / open-countryside policy area
- ✓ Plain-English feasibility before any drawings
- ✓ 30+ years of Cornwall Council approvals
- ✓ Conservation Area experience built into the fee
- ✓ Cornwall Council regulars across every sub-area
Who this is for
Blisland runs the full mix — owner-occupier, holiday-let, commercial and the occasional smallholding — so we scope every extension enquiry from the use-class up.
Local watch-list
Blisland-specific issues we screen on the first visit.
Watch #1
Conservation Area material and fenestration controls in central Blisland
Watch #2
AONB landscape-impact scrutiny on visible elevations
Watch #3
Tighter Local Plan tests on isolated rural dwellings
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 viewFAQs
Blisland Extensions — local questions answered.
- 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. In Blisland specifically, we'd start by checking the Conservation Area boundary 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.
- 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.
- 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.
Local context
Why Blisland is its own job.
Locally, conservation Area covers the green and church area; Bodmin Moor AONB across the parish. Isolated dwelling policy applies strictly across the moor. For extension specifically, parts of Blisland sit within a designated Conservation Area, which means materials, fenestration and roof pitches all need to read sympathetically with the existing streetscape; the surrounding landscape falls inside the Cornwall Area of Outstanding Natural Beauty, so massing, height and landscape impact carry extra weight in any planning decision; 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. Which is why we scope Blisland projects parish-up, not template-down — the PL30 context shapes the design from day one. Whether the project is on modern AONB-sensitive infill in the centre or further out toward Bodmin, the extension response is locally tuned.
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.
What we focus on
Extensions considerations specific to Blisland.
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
Drainage on older Cornish properties is rarely on a clean modern map; CCTV survey before design is often money well spent.
03
Wind and sea-spray exposure can drive material choices on west-facing extensions; we detail accordingly.
04
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.
Our process
How a Blisland 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 fabric
Why a East Cornwall studio is the right fit for Blisland extension.
Building stock
Across Blisland (PL30) we work on traditional granite cottages around the green, Victorian villas, post-war bungalows, modern AONB-sensitive infill, renovated farmsteads. Each stock type drives a different extension response — modern AONB-sensitive infill in particular needs careful detailing here.
Parish & policy
Blisland is its own town in East Cornwall, with planning history that's specific to the PL30 catchment.
Coverage
We cover PL30 from our studio, with regular extension jobs also running in Bodmin, Lanivet. Most Blisland site visits get booked within the same week.
What does a first Blisland consultation cost?
Nothing. We come to the property, walk the site, talk through what works on a PL30 plot and follow up with a written feasibility note inside a week — no obligation either way.
Request a free visitOther services in Blisland
Nearby places we cover
The extension jobs we're proudest of in Blisland are the ones where the planning route was clear before a single elevation was drawn.