South Cornwall · TR10
One studio for extension in Lamanva
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 Lamanva means starting from the TR10 context — Lamanva is a small rural hamlet in the TR10 area, with scattered homes, lanes and a deliberately quiet settlement pattern, with a building stock that leans toward farmhouses and bungalows.
Lamanva sits in South Cornwall — covering TR10 from Falmouth, Flushing, Budock Water outward.
- Rural / open-countryside policy area
- ✓ Fixed-fee planning packages, no surprise invoices
- ✓ Measured-survey accuracy from day one
- ✓ Local to South Cornwall — not a national franchise
- ✓ Same team on paper as on site
Our process
How a Lamanva 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 Lamanva 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 Lamanva.
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 Lamanva is its own job.
Two things shape a Lamanva application: parish character and policy. On policy — the main planning test is usually whether the proposal remains subordinate, locally detailed and acceptable on access, drainage and neighbour amenity. 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 Lamanva programme tends to run on time. On farmhouses in particular — the kind you'll also find toward Swanpool — 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
Lamanva-specific issues we screen on the first visit.
Watch #1
Tighter Local Plan tests on isolated rural dwellings
Lamanva is part of Falmouth
Lamanva sits inside the Falmouth catchment — we cover both as one extension territory.
See Extensions in Falmouth →Local fabric
One TR10 studio, one extension job — start to finish.
Building stock
Across Lamanva (TR10) we work on cottages, farmhouses, converted barns, bungalows, small infill homes. Each stock type drives a different extension response — farmhouses in particular needs careful detailing here.
Parish & policy
Lamanva sits in the parish of Lamanva, which matters for how parish-level consultation lands on a extension application.
Coverage
We cover TR10 from our studio, with regular extension jobs also running in Falmouth, Flushing, Budock Water. Most Lamanva site visits get booked within the same week.
Can you handle both planning and build in Lamanva?
Yes — design, planning, building regs and full construction run under one roof. For clients with an existing Lamanva builder we can stop at a tender-ready Full Plans pack instead.
Request a free visitWho this is for
Lamanva 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
Lamanva Extensions — local questions answered.
- How much does an extension cost in Lamanva?
- 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. In Lamanva specifically, we'd start by checking the latest parish-level planning history before committing to a direction.
- 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.
- 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.
Other services in Lamanva
Nearby places we cover
If you're balancing ambition against TR10 planning realism, our Lamanva extension work threads that needle without the usual drama.