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. In Talland 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.

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.

East Cornwall · PL13

Extensions for Talland (PL13)

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 Talland means starting from the PL13 context — Talland is a coastal village in the PL13 area, where sea exposure, views and seasonal pressure shape most building decisions, with a building stock that leans toward replacement dwellings and rendered coastal houses.

Talland sits in East Cornwall — covering PL13 from Looe, Duloe, Herodsfoot outward.

Cornwall AONB
Coastal exposure zone

Book a free Talland site visit Call the studio More on Extensions →

✓ Same team on paper as on site
✓ Fixed-fee planning packages, no surprise invoices
✓ Local to East Cornwall — not a national franchise
✓ AONB experience built into the fee

Cornish mining-landscape ridge with engine-house silhouette

coastal contemporary build above the dunes

Our process

How a Talland 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 Talland extension clients we work with are second-time builders — they've seen the templated approach fail once already.

Get a free feasibility view

What we focus on

Extensions considerations specific to Talland.

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
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.
03
Cornish granite and slate-hung walls react differently to new openings than modern brickwork — lintel choice and structural sequencing matter.
04
Wind and sea-spray exposure can drive material choices on west-facing extensions; we detail accordingly.

Local context

Why Talland is its own job.

In Talland the planning picture is specific: coastal setting and landscape sensitivity mean rooflines, glazing, drainage and external materials need careful handling from the first sketch. 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 Talland drives detailing choices — fixings, render systems and timber treatments all need to be specified for exposure. That local reading is what makes a Talland (PL13) project different from a generic Cornwall scheme — and is the whole reason we work this way. On replacement dwellings in particular — the kind you'll also find toward Lanreath — 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

The PL13 constraints that shape a extension brief.

Watch #1
AONB landscape-impact scrutiny on visible elevations
Watch #2
Coastal exposure driving fixing, render and joinery spec

Talland is part of Looe

Talland sits inside the Looe catchment — we cover both as one extension territory.

See Extensions in Looe →

Local fabric

What sets a Talland extension brief apart.

Building stock

Across Talland (PL13) we work on granite cottages, rendered coastal houses, holiday homes, bungalows, replacement dwellings. Each stock type drives a different extension response — replacement dwellings in particular needs careful detailing here.

Parish & policy

Talland sits in the parish of Talland, which matters for how parish-level consultation lands on a extension application.

Coverage

We cover PL13 from our studio, with regular extension jobs also running in Looe, Duloe, Herodsfoot. Most Talland site visits get booked within the same week.

Can you handle both planning and build in Talland?

Yes — design, planning, building regs and full construction run under one roof. For clients with an existing Talland builder we can stop at a tender-ready Full Plans pack instead.

Request a free visit

Who this is for

Talland 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

Talland Extensions — local questions answered.

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. In Talland 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.
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 Talland

Nearby places we cover

If you're balancing ambition against PL13 planning realism, our Talland extension work threads that needle without the usual drama.

Ready to discuss your project in Talland?

Start a conversation

Extensions for Talland (PL13)

How a Talland extension project runs.

Brief

Design

Approvals

Build

Handover