North Cornwall · EX23 · Cornwall Council North

Small rear extensions in Bude — under-3m designs that work hard

A Bude rear extension under 3m doesn't need to feel small. The compact EX23 terraces and cottages we work on benefit most from a single tight move: a glazed corner, a side-light over the new kitchen, or a re-jigged level threshold to the garden. Under-3m and single-storey usually sits inside permitted development, which removes most of the planning risk. 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. Bude sits in North Cornwall, and that geography ends up in the drawings — Bude is the principal town of the far north coast, with a Victorian sea pool, broad surf beaches at Summerleaze and Crooklets, and a Conservation Area covering the canal and the older town centre, with a building stock that leans toward Edwardian villas and modern Persimmon-style estates.

Bude sits in North Cornwall — just off the A39; with Truro the closest city; covering EX23 from Stratton, Kilkhampton, Marhamchurch outward.

  • Conservation Area
  • Cornwall AONB
  • Coastal exposure zone
  • Under-3m PD route — no planning needed
  • Glazed corner detailing maximises light gain
  • Typical 8–15m² build: £30k–£55k
  • On-site build: 10–14 weeks

Local watch-list

The EX23 constraints that shape a extension brief.

  • Watch #1

    Atlantic Zone 4 wind exposure driving render and fixing spec

  • Watch #2

    Flood Zone 2 around the canal corridor

  • Watch #3

    AONB long-view scrutiny for two-storey or sea-facing additions

  • Watch #4

    Conservation Area Article 4 directions on central streets

Who this is for

In Bude the extension brief is almost always a private homeowner improving a forever home — so we lead with feasibility and long-term value, not show-home rhetoric.

Local context

Why Bude is its own job.

In Bude the planning picture is specific: conservation Area covers the canal, the seafront and parts of the town centre. AONB and Heritage Coast across most of the parish boundary. Edge-of-town residential growth is significant. For extension specifically, parts of Bude 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 Bude drives detailing choices — fixings, render systems and timber treatments all need to be specified for exposure. That local reading is what makes a Bude (EX23) project different from a generic Cornwall scheme — and is the whole reason we work this way. On Edwardian villas in particular — the kind you'll also find toward Marhamchurch — the extension brief always has to read the existing fabric first. Bude sits inside the Cornwall AONB and the North Cornwall Heritage Coast, so extensions facing the sea — particularly anything visible from the South West Coast Path or the canal corridor — get close landscape-impact scrutiny. Conservation Area boundaries through the canal, The Strand and parts of Belle Vue catch most pre-1960s properties; the post-war and Persimmon-era estates behind Stratton Road usually fall outside, which materially changes the planning route. Atlantic exposure also drives detailing: render specs, fixings and timber treatments here all need to be specified for a coastal Zone 4 wind load, not a sheltered inland site.

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 Bude.

  • 01

    Bude EX23 addresses fall under Cornwall Council's North sub-area, so pre-application advice comes from the Bodmin office — slower turnaround than the Truro side, worth building into the programme.

  • 02

    Sea-facing extensions in Bude need wind-load uplift checks on roofs and Class 4 weather-tightness on windows; we specify accordingly rather than copying an inland detail.

  • 03

    Flood Zone 2 catches parts of the lower town near the canal and Summerleaze — a flood risk statement is often required even for modest rear extensions in those streets.

  • 04

    Drainage on older Cornish properties is rarely on a clean modern map; CCTV survey before design is often money well spent.

  • 05

    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.

  • 06

    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.

  • 07

    Cornish granite and slate-hung walls react differently to new openings than modern brickwork — lintel choice and structural sequencing matter.

Recent work nearby

Recent Widemouth Bay rear extension specified A4 stainless throughout for the salt-laden boundary.

See more recent North Cornwall work →

Our process

How a Bude extension project runs.

  1. Step 1

    Brief

    We meet on site, talk through how you live now and what's missing from the current layout.

  2. Step 2

    Design

    Two or three sketch directions with rough budgets, then refinement of the chosen route.

  3. Step 3

    Approvals

    Planning or Cert of Lawfulness, then a full building regs package.

  4. Step 4

    Build

    Either through your own builder with our drawings, or as a full build by our team.

  5. 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

Bude Extensions — local questions answered.

What's the smallest worthwhile rear extension in Bude?
Anything from 8m² is worth doing if it unlocks a kitchen layout. Below that, the cost per m² makes a glazed door upgrade more sensible.
Can I do a small extension in Bude under permitted development?
If the property has its PD rights intact, single-storey rear extensions up to 3m (terraced/semi) or 4m (detached) are permitted. Conservation Area sites lose this — full planning needed.
How much does a small extension cost in Bude?
For 8–15m² in Bude, allow £30k–£55k including a basic kitchen refit. Coastal detailing and salt-resistant ironmongery add 5–8%.
Do extensions in Bude need extra planning consideration because of the AONB?
Yes — Bude is inside the Cornwall AONB, so any extension visible in long views from the coast path, beaches or canal carries an extra landscape-impact test. Single-storey rear extensions tucked behind the existing house are usually fine; two-storey side or sea-facing additions need a more careful design conversation and often a Landscape and Visual Impact note.
Are extensions in the Bude Conservation Area harder to get approved?
Not harder, but more design-led. The Bude Canal, Strand and Belle Vue conservation zones expect render colours, sash proportions, slate or natural-slate-equivalent roofing and restrained glazing. Article 4 directions in parts of the centre remove some permitted development rights, so we always check the address before committing to a route.
How do you handle coastal exposure on Bude extensions?
We design to the actual EX23 wind and driving-rain exposure: stainless or A4 fixings, high-performance render systems, factory-finished timber or aluminium-clad windows, and roof detailing that copes with uplift. Costs a little more up-front but avoids the ten-year repaint and resealing cycle you see on standard inland specs.

Bude is the hub for these neighbourhoods

We run extensions across Bude and the surrounding EX23 neighbourhoods — same studio, same site team.

Local proof — Most Bude extension clients we work with are second-time builders — they've seen the templated approach fail once already.

Get a free feasibility view

Small extensions in Bude succeed on detailing, not scale. A well-placed rooflight and the right floor finish often deliver more than an extra metre of footprint.

Sketch a small Bude extension that punches above its size

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