North Cornwall · PL28 · Cornwall Council North
Extension ideas that actually work on Padstow homes
The extension that looks great on Instagram rarely lands on a Padstow plot. Local stock here — medieval merchant houses and Georgian harbour terraces — responds to specific moves: low-slung rear glazing, side returns that respect the original eaves line, and roof-light additions that don't break the street rhythm. Below are the ideas that consistently get planning and read well on the existing fabric. 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. Padstow sits in North Cornwall, and that geography ends up in the drawings — Padstow is a working fishing harbour on the Camel Estuary, AONB-designated, with one of the strongest period property markets in Cornwall and a tight Conservation Area covering the inner harbour, with a building stock that leans toward modern coastal homes at Trevone and Trethillick and Georgian harbour terraces.
Padstow sits in North Cornwall — just off the A389; with Truro the closest city; 5 miles from Wadebridge.
- Conservation Area
- Cornwall AONB
- Coastal exposure zone
- ✓ Rear glazed link — most consistent Padstow approval
- ✓ Side return — best £/m² in terraced stock
- ✓ Wrap-around — works on corner plots and bungalows
- ✓ Double-storey side — needs careful eaves treatment
Local watch-list
What usually catches extension projects out in Padstow.
Watch #1
Cornwall AONB and Heritage Coast across the whole peninsula
Watch #2
Principal residence sentiment from the parish on new dwellings
Watch #3
Tight medieval lanes around the harbour limiting site logistics
Watch #4
Granite-and-slate vernacular controls on visible elevations
Who this is for
Padstow 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 context
Why Padstow is its own job.
Two things shape a Padstow application: parish character and policy. On policy — conservation Area is extensive, with most of the historic core protected. Padstow's Neighbourhood Plan operates a strong principal residence policy; second homes and holiday lets face explicit policy resistance. For extension specifically, parts of Padstow 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; coastal salt-laden air around Padstow drives detailing choices — fixings, render systems and timber treatments all need to be specified for exposure. Get that local reading right and the rest of the Padstow programme tends to run on time. On modern coastal homes at Trevone and Trethillick in particular — the kind you'll also find toward Constantine Bay — 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.
What we focus on
Extensions considerations specific to Padstow.
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.
Recent work nearby
Recent harbour-adjacent townhouse refurb hid services in a new internal core and freed the principal rooms.
See more recent North Cornwall work →Our process
How a Padstow 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.
FAQs
Padstow Extensions — local questions answered.
- What extension styles work best on Padstow cottages?
- Single-storey rear with a flat-roof glazed link, kept under the existing eaves, almost always sits well. Two-storey ambitions usually need to step back from the original gable. We sketch three options before committing to one.
- Can I add an extension and a loft conversion together in Padstow?
- Yes, and it's often more cost-efficient to combine — shared scaffold, one set of planning fees, one building control inspection schedule. We'd cost both options against the standalone routes.
- Do contemporary extensions get planning in Padstow?
- Yes — Cornwall Council generally welcomes a clearly modern intervention if it doesn't pretend to be old. Honest material contrast tends to score better than mock-Victorian.
- How much does an extension cost in Padstow?
- 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 Padstow specifically, we'd start by checking the Conservation Area boundary 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.
Padstow is the hub for these neighbourhoods
We run extensions across Padstow and the surrounding PL28 neighbourhoods — same studio, same site team.
- St Eval
PL27
- Trevone
PL28
- Harlyn
PL28
- St Merryn
PL28
- Constantine Bay
PL28
- Treyarnon
PL28
- Porthcothan
PL28
- Little Petherick
PL27
Local proof — Most Padstow homeowners come to us after a extension quote elsewhere felt vague on planning — we lead with feasibility instead.
Get a free feasibility viewOther services in Padstow
Nearby places we cover
Local neighbourhoods in Padstow
An extension idea is only worth pursuing if it works on your specific Padstow plot. We test the top three options against PL28 planning and your existing fabric, then pick the one that delivers the most.