House extensions in West Devon

West Devon received 159 householder applications in the last 12 months - about 3 a week. Garage works and porches are the most common. Of the 115 decided so far, 98 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 56 applications
20 Oct 2026 Within Consultation Period 2899/26/HHO

Strawbridge Stables Hatherleigh EX20 3LQ

Construction of outbuilding and domestic store

Householder Application West Devon
20 Oct 2026 Under Consideration 2834/26/CLP

Downcroft Lamerton PL19 8SD

Certificate of lawfulness for proposed open air swimming pool and pump house

Certificate of Lawfulness for Proposed Use West Devon
16 Oct 2026 Under Consideration 2898/26/CLP

Mary Rumleigh Rumleigh Bere Alston PL20 7HN

Certificate of lawfulness for proposed single storey pitch roofed kitchen extension on to gable end of existing dwelling house

Certificate of Lawfulness for Proposed Use West Devon
16 Oct 2026 Under Consideration 2907/26/CLP

1 Railway Cottages Broadbury EX20 4LG

Certificate of Lawfulness for proposed construction of extension

Certificate of Lawfulness for Proposed Use West Devon
14 Oct 2026 Under Consideration 2831/26/CLP

Oakley Barn Thorndon Cross EX20 4NQ

Certificate of lawfulness for proposed single-storey side extension to create enlarged ground floor bedroom, and works to improve thermal insulation a...

Certificate of Lawfulness for Proposed Use West Devon
13 Oct 2026 Under Consideration 2825/26/CLP

Church Barn Bondleigh EX20 2AN

Certificate of Lawfulness for the proposed replacement of existing external glazing, excluding the front door, installation of conservation-style roof...

Certificate of Lawfulness for Proposed Use West Devon
13 Oct 2026 Under Consideration 2823/26/CLP

18 Mohuns Park Tavistock PL19 9BN

Certificate of lawfulness for proposed new rear single story extension. New roof dormer. New side info extension between house and garage.

Certificate of Lawfulness for Proposed Use West Devon
12 Oct 2026 Within Consultation Period 2846/26/FUL

The Royal Inn Horsebridge PL19 8PJ

Proposed detached garage and formation of an accessible external terrace (part retrospective).

Full Planning Application West Devon
8 Oct 2026 Within Consultation Period 2725/26/HHO

Polson Farm Polson Bridge Launceston PL15 9QU

Extension & internal alterations to existing dwelling alongside demolition of barn

Householder Application West Devon
7 Oct 2026 Within Consultation Period 2644/26/HHO

Overlake Farm Northlew Okehampton EX20 3NG

Vertical extension and roof re-configuration of existing rear outshot, two-storey side extension, replacement rear porch and detached garage

Householder Application West Devon
6 Oct 2026 Within Consultation Period 2782/26/HHO

Hollydown Butcher Park Hill Tavistock PL19 0EH

Proposed two storey side extension

Householder Application West Devon
5 Oct 2026 Within Consultation Period 2741/26/HHO

Dove Cottage Down House Farm Mill Hill Lane Tavistock PL19 8NH

Construction of a porch

Householder Application West Devon
5 Oct 2026 Within Consultation Period 2705/26/HHO

Wychwood Green Lane Yelverton PL20 6BW

Replacement of ancillary building with new garden room

Householder Application West Devon
30 Sept 2026 Within Consultation Period 2757/26/HHO

Ginger Beer Cottage 31 33 Essington Lane North Tawton EX20 2DS

Nine replacement windows in vacuum double glazing.

Householder Application West Devon
30 Sept 2026 Within Consultation Period 2756/26/LBC

Ginger Beer Cottage 31 33 Essington Lane North Tawton EX20 2DS

Nine replacement windows incorporating vacuum double glazing.

Listed Building Consent West Devon
29 Sept 2026 Under Consideration 2737/26/CLP

1 Stephens Close Fore Street Bere Alston PL20 7AB

Loft conversion with the insertion of velux windows including velux cabrio

Certificate of Lawfulness for Proposed Use West Devon
28 Sept 2026 Within Consultation Period 2471/26/HHO

Hill Barton Okehampton EX20 1RW

Proposed extensions and alterations to dwellinghouse

Householder Application West Devon
28 Sept 2026 Within Consultation Period 2724/26/FUL

Warren Wood Farm Portgate Lewdown EX20 4PU

Dismantle existing buildings and construction of dwelling and detached garage - alternative to scheme approved under Class Q 1518/24/PDM

Full Planning Application West Devon
24 Sept 2026 Under Consideration 2616/26/CLP

25 Chaucer Road Tavistock PL19 9AJ

Certificate of lawfulness for proposed rear and side extensions

Certificate of Lawfulness for Proposed Use West Devon
23 Sept 2026 Within Consultation Period 2934/25/FUL

Hillside Farm Lewdown EX20 4QL

Proposed front extension

Full Planning Application West Devon
18 Sept 2026 Within Consultation Period 2539/26/HHO

Tor Down Farm Exbourne EX20 3QU

Conversion of attached garage for residential use, first floor extension and associated works

Householder Application West Devon
16 Sept 2026 Under Consideration 2211/26/FUL

Essworthy Lake Hatherleigh EX20 3LS

Erection of storage shed

Full Planning Application West Devon
15 Sept 2026 Within Consultation Period 2595/26/LBC

Rowans 21B Park Road Hatherleigh EX20 3JS

Garden room to replace existing conservatory

Listed Building Consent West Devon
15 Sept 2026 Within Consultation Period 2594/26/HHO

Rowans 21B Park Road Hatherleigh EX20 3JS

Garden room to replace existing conservatory

Householder Application West Devon
15 Sept 2026 Within Consultation Period 2472/26/HHO

22 Dipper Drive Whitchurch PL19 9FS

Erection of porch

Householder Application West Devon
15 Sept 2026 Within Consultation Period 2335/26/HHO

Southmoor Thorndon Cross EX20 4NF

Two storey extension

Householder Application West Devon
15 Sept 2026 Refused 20 Oct 2502/26/CLP

Lee Farm Coryton EX20 4PE

Certificate of lawfulness for proposed detached double garage with new access track from private driveway

Certificate of Lawfulness for Proposed Use West Devon
14 Sept 2026 Within Consultation Period 2581/26/LBC

1 West Street Tavistock PL19 8AD

Raising of floor in bathroom & construction of window seats in bedrooms (retrospective)

Listed Building Consent West Devon
14 Sept 2026 Under Consideration 2179/26/FUL

Langford Farm Tavistock PL19 8QQ

Change of use of barn to dwelling with construction of extension and carport.

Full Planning Application West Devon
11 Sept 2026 Under Consideration 2141/26/HHO

Rock Chillaton PL16 0HU

Extension to porch and regularise the summerhouse.

Householder Application West Devon
10 Sept 2026 Within Consultation Period 0400/25/FUL

Courtlands Cabin, Courtlands Road, Tavistock, PL19 0EF

Erection of shed for office use and staff space (Retrospective)

Full Planning Application West Devon
10 Sept 2026 Under Consideration 2448/26/HHO

St Maurice Down Road Tavistock PL19 9AD

Conversion of existing garage and erection of first-floor extension above existing single-storey extension, together with associated external and inte...

Householder Application West Devon
8 Sept 2026 Approved 25 Sep 2417/26/CLP

Widgery View 13 Trescote Way Bridestowe EX20 4QB

Certificate of lawfulness for proposed dormer window with cladding and proposed Soil Vent Pipe to rear and rooflight to the south elevation.

Certificate of Lawfulness for Proposed Use West Devon
27 Aug 2026 Refused 21 Sep 2382/26/PAA

Homeleigh Heathfield PL19 0LF

Application to determine if prior approval is required for the enlargement of a dwellinghouse consisting of: (b) one additional storey, where the exis...

Prior Approval Application West Devon
26 Aug 2026 Under Consideration 2140/26/LBC

Rock Chillaton PL16 0HU

Construction of a porch adjacent to existing utility room extension

Listed Building Consent West Devon
26 Aug 2026 Approved 19 Oct 2415/26/LBC

Morwell House Morwell Tavistock PL19 8JH

Works to repair and recover the roof of the south east wing, repairs to chimneys and overhaul of rainwater goods.

Listed Building Consent West Devon
26 Aug 2026 Under Consideration 2016/26/FUL

St Peters Church Essington Road North Tawton EX20 2EX

Proposed development to West Door access to include disabled access ramp and hand rails

Full Planning Application West Devon
26 Aug 2026 Approved 12 Oct 1872/26/LBC

35 Bannawell Street Tavistock PL19 0DL

Re-roofing of existing dwelling

Listed Building Consent West Devon
25 Aug 2026 Approved 20 Oct 2332/26/HHO

1 Kingfisher Drive Okehampton EX20 1ER

Proposed external staircase, new external door at first floor and associated alterations to existing detached garage

Householder Application West Devon
25 Aug 2026 Under Consideration 2270/26/HHO

Athlone House Yeo Lane North Tawton EX20 2EA

Proposed construction of a single storey rear extension and part retrospective construction of a single storey outbuilding

Householder Application West Devon
24 Aug 2026 Approved 2381/26/HHO

Fresh Springs 3 Buckland Court Crapstone PL20 7UE

Addition of first floor extension above the garage

Householder Application West Devon
21 Aug 2026 Approved 29 Sep 2234/26/HHO

Tor Cottage Chillaton Lifton PL16 0JE

Proposed extension & alterations to existing house with associated external works

Householder Application West Devon
18 Aug 2026 Refused 21 Sep 2316/26/PHH

Homeleigh Heathfield PL19 0LF

Application to determine if prior approval is required for proposed 8m (L) x 4.8m (w) x 2.9m (h) rear extension, using materials to match existing dwe...

Prior Approval Householder West Devon
18 Aug 2026 Approved 5 Oct 2153/26/HHO

Kerak Green Lane Yelverton PL20 6BW

Raising of the roof, addition of porch and single storey extension

Householder Application West Devon
18 Aug 2026 Approved 29 Sep 1993/26/HHO

Meadowside 4 Costloes Cottages Crowden Northlew EX20 3ND

Proposed single storey extension for a bedroom, with a rear ramp and patio area

Householder Application West Devon
18 Aug 2026 Within Consultation Period 2266/26/HHO

2 Abbotsfield Crescent Tavistock PL19 8EY

READVERTISEMENT (amended description) Proposed single storey rear extension and new front porch to bungalow. Replace garage and insert new pedestrian ...

Householder Application West Devon
13 Aug 2026 Under Consideration 1342/26/LBC

Oak Barn Newland Mill North Tawton EX20 2BB

Garden room extension to north east elevation

Listed Building Consent West Devon
11 Aug 2026 Under Consideration 1341/26/FUL

Oak Barn Newland Mill North Tawton EX20 2BB

Garden room extension to north east elevation

Full Planning Application West Devon
11 Aug 2026 Approved 19 Aug 2192/26/CLP

10 Lew Walk Hatherleigh EX20 3FF

Proposed rear dormer extension, loft conversion and installation of rooflights to front elevation

Certificate of Lawfulness for Proposed Use West Devon
10 Aug 2026 Approved 19 Aug 2137/26/CLP

Down House Lewdown EX20 4DS

Proposed construction of 3 pitched dormers to replace a single dormer on the rear elevation

Certificate of Lawfulness for Proposed Use West Devon
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits, whether taller, larger or in a protected area, needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases, especially those drawing a lot of comments, can take longer.
Can I get email alerts for new extensions applications in West Devon?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by West Devon. You can also narrow the alert to a postcode, street, or drawn area.

We check West Devon's planning portal daily. New extensions applications appear here within a day of being published.