South Cornwall · PL24
Menabilly 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. Anchor any Menabilly extension in the local fabric and the rest follows — Menabilly is an estate-influenced village in the PL24 area, with designed landscape, older cottages and rural edges close together, with a building stock that leans toward small infill plots and detached homes.
Menabilly sits in South Cornwall — covering PL24 from Fowey, Golant, Bodinnick outward.
- Cornwall AONB
- Coastal exposure zone
- ✓ Free first site visit, no obligation
- ✓ Plain-English feasibility before any drawings
- ✓ 30+ years of Cornwall Council approvals
- ✓ AONB experience built into the fee
Who this is for
Menabilly 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
What usually catches extension projects out in Menabilly.
Watch #1
AONB landscape-impact scrutiny on visible elevations
Watch #2
Coastal exposure driving fixing, render and joinery spec
Local proof — Most Menabilly extension clients we work with are second-time builders — they've seen the templated approach fail once already.
Get a free feasibility viewFAQs
Menabilly Extensions — local questions answered.
- 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. In Menabilly specifically, we'd start by checking AONB landscape sensitivity before committing to a direction.
- 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.
- 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.
Local context
Why Menabilly is its own job.
Locally, landscape setting, curtilage history and estate character need a precise design rationale rather than a standard suburban approach. For extension specifically, 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; coastal salt-laden air around Menabilly drives detailing choices — fixings, render systems and timber treatments all need to be specified for exposure. Which is why we scope Menabilly projects parish-up, not template-down — the PL24 context shapes the design from day one. Whether the project is on small infill plots in the centre or further out toward Fowey, 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 Menabilly.
01
Wind and sea-spray exposure can drive material choices on west-facing extensions; we detail accordingly.
02
Cornish granite and slate-hung walls react differently to new openings than modern brickwork — lintel choice and structural sequencing matter.
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
Drainage on older Cornish properties is rarely on a clean modern map; CCTV survey before design is often money well spent.
Our process
How a Menabilly 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 South Cornwall studio is the right fit for Menabilly extension.
Building stock
Across Menabilly (PL24) we work on estate cottages, farm buildings, detached homes, converted outbuildings, small infill plots. Each stock type drives a different extension response — small infill plots in particular needs careful detailing here.
Parish & policy
Menabilly sits in the parish of Menabilly, which matters for how parish-level consultation lands on a extension application.
Coverage
We cover PL24 from our studio, with regular extension jobs also running in Fowey, Golant, Bodinnick. Most Menabilly site visits get booked within the same week.
What does a first Menabilly consultation cost?
Nothing. We come to the property, walk the site, talk through what works on a PL24 plot and follow up with a written feasibility note inside a week — no obligation either way.
Request a free visitMenabilly is part of Fowey
Menabilly sits inside the Fowey catchment — we cover both as one extension territory.
See Extensions in Fowey →Other services in Menabilly
Nearby places we cover
A extension in Menabilly stands or falls on how well it reads the street — we treat that as the design brief, not an afterthought.