House extensions in Wiltshire

Wiltshire received 2,253 householder applications in the last 12 months - about 43 a week. Rear extensions and garage works are the most common. Of the 1,519 decided so far, 1,443 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 633 applications
Yesterday Submitted PL/2026/06666

Sunnyside, Chandlers Lane, Bishops Cannings, Devizes, SN10 2JU

Erection of nine solar panels to flat roof garage

Householder planning permission Wiltshire
Yesterday Submitted PL/2026/06858

The Laurels, 65 The Common, Broughton Gifford, Melksham, SN12 8NA

Proposed Replacement Single Storey Rear Extension

Householder planning permission Wiltshire
Yesterday Submitted PL/2026/06864

54 White Lion Park, Malmesbury, SN16 0QP

Proposed two storey side extension, single storey garage conversion and two storey front porch extension.

Householder planning permission Wiltshire
Yesterday Submitted PL/2026/06874

New Homestead Farm, Mountain Bower, North Wraxall, Chippenham, SN14 7AJ

Proposed First Floor Rear Extension

Householder planning permission Wiltshire
Yesterday Submitted PL/2026/06878

The Laurels, 65 The Common, Broughton Gifford, Melksham, SN12 8NA

Proposed Replacement Single Storey Rear Extension

Listed building consent Wiltshire
23 Oct 2026 Under Consultation PL/2026/06529

Woodmill, Middle Street, Harnham, Salisbury, SP2 8LW

Rear single story extension. Front hip to gable roof extension. New garden amenity building in place of existing garage.

Householder planning permission Wiltshire
23 Oct 2026 Under Consultation PL/2026/06834

3 Barrow Green, Chippenham, SN15 1BD

To Adapt the front garden to provide level (wheel chair) access from the front door to public pavement at the property boundary. Works to include the ...

Householder planning permission Wiltshire
23 Oct 2026 Under Consultation PL/2026/06850

Red Gables, Blackboard Lane, Urchfont, Devizes, SN10 4RD

Side extension replacing existing detached garage with accommodation over. Change in materials to negate Woolaway construction.

Householder planning permission Wiltshire
23 Oct 2026 Under Consultation PL/2026/06854

Somerhill House, Little Somerford, Chippenham, SN15 5BH

A single-storey extension to provide a new plantroom and staffroom, alongside a second-floor extension to accommodate a residents’ dining room.

Full planning permission Wiltshire
23 Oct 2026 Under Consultation PL/2026/05477

1 Bridge Yard, Bradford On Avon, BA15 1EJ

Installation of 2no external louvres within the window frames to Tower Bridge/Silver Street Elevation

Full planning permission Wiltshire
23 Oct 2026 Under Consultation PL/2026/06579

The Old Chapel, Semley, Shaftesbury, SP7 9AU

The removal of the existing shed and its replacement with a slightly larger (6m x 4m) shed at the Former Semley Baptist Church

Householder planning permission Wiltshire
23 Oct 2026 Under Consultation PL/2026/06827

Mawarden Court, Stratford Road, Stratford Sub Castle, Salisbury, SP1 3LL

Addition of a single storey kitchen/dining room extension and the installation of air source heat pumps.

Householder planning permission Wiltshire
23 Oct 2026 Under Consultation PL/2026/06833

Mawarden Court, Stratford Road, Stratford Sub Castle, Salisbury, SP1 3LL

Addition of a single storey kitchen/dining room extension

Listed building consent Wiltshire
23 Oct 2026 Under Consultation PL/2026/06852

1 Bridge Yard, Bradford On Avon, BA15 1EJ

Installation of 2no external louvres within the window frames to Tower Bridge/Silver Street Elevation

Listed building consent Wiltshire
22 Oct 2026 Under Consultation PL/2026/06620

9 Doubledays, Cricklade, Swindon, SN6 6AU

To create a single storey rear extension that measures 2.75m and 5.615 m from the rear walls of the original dwelling house (with a maximum height of...

Prior approval Part 1 Class A.1(ea) Wiltshire
22 Oct 2026 Under Consultation PL/2026/05995

1 Upper Woodford, Salisbury, SP4 6NU

Remove existing hedge roots and install dropped kerb to provide access to proposed parking area in front of house

Householder planning permission Wiltshire
22 Oct 2026 Under Consultation PL/2026/06784

Savernake, Stratford Tony Road, Coombe Bissett, Salisbury, SP5 4JZ

Construction of Attached Garage to East Elevation

Householder planning permission Wiltshire
22 Oct 2026 Under Consultation PL/2026/06823

3 Honeysuckle Close, Calne, SN11 9TE

Single-storey rear extension with associated internal alterations.

Householder planning permission Wiltshire
22 Oct 2026 Under Consultation PL/2026/06824

Land North and Land South of Fox Talbot Museum, High Street, Lacock, Chippenham, Wilts, SN15 2LG

Creating a new permeable path between the Fox Talbot museum and the existing paths

Full planning permission Wiltshire
22 Oct 2026 Submitted PL/2026/06675

3 Bells Lane, Stourton, Warminster, BA12 6QJ

Erect canopy to fish pond (retrospective)

Householder planning permission Wiltshire
22 Oct 2026 Submitted PL/2026/06727

133 Malmesbury Road, Chippenham, SN15 1PZ

Single Storey front extension with internal alterations

Householder planning permission Wiltshire
22 Oct 2026 Submitted PL/2026/06769

321 Station Road, Holt, Trowbridge, BA14 6RD

Detached carport accessed via existing vehicle access

Householder planning permission Wiltshire
22 Oct 2026 Submitted PL/2026/06802

6 Springfield, Bradford On Avon, BA15 1BB

Proposed Two Storey Side Extension, Front Porch & Landscaping Alterations

Householder planning permission Wiltshire
22 Oct 2026 Submitted PL/2026/06816

18 King Alfred Street, Chippenham, SN15 1NP

Proposed Garden Room

Householder planning permission Wiltshire
22 Oct 2026 Submitted PL/2026/06818

South Farm, The Common, Minety, Malmesbury, SN16 9RH

Proposed extension to existing barn for the washing and storage of machinery and the provision of cattle handling facilities.

Prior notification Wiltshire
21 Oct 2026 Under Consultation PL/2026/06719

Fitz House, The Street, Teffont, Salisbury, SP3 5QP

Partial retrospective permission for construction of stone retaining walls and regrading of garden

Householder planning permission Wiltshire
21 Oct 2026 Under Consultation PL/2026/06829

Fitz House, The Street, Teffont, Salisbury, SP3 5QP

Partial retrospective permission for construction of stone retaining walls and regrading of garden

Listed building consent Wiltshire
21 Oct 2026 Under Consultation PL/2026/06509

4 Little Challows, Biddestone, Chippenham,, SN14 7DU

Single storey rear extension

Householder planning permission Wiltshire
21 Oct 2026 Under Consultation PL/2026/06518

1 St Stephens Leisure Park, St Stephens Place, Trowbridge, BA14 8TQ

External alterations, alterations existing external dining area and Replacement signage

Full planning permission Wiltshire
21 Oct 2026 Under Consultation PL/2026/06800

1 St Stephens Leisure Park, St Stephens Place, Trowbridge, BA14 8TQ

External alterations, alterations existing external dining area and Replacement signage

Consent to display an advertisement Wiltshire
21 Oct 2026 Submitted PL/2026/06677

8 Westbury Road, Warminster, BA12 0AN

Proposed Lawfulness of the renovation of existing rear extension & separation of existing garage from main house.

Lawful development Wiltshire
21 Oct 2026 Submitted PL/2026/06768

485 Semington Road, Melksham, SN12 6DP

Single storey side extension.

Householder planning permission Wiltshire
21 Oct 2026 Submitted PL/2026/06779

1 Magnon Road, Bradford On Avon, BA15 1PU

Proposed two storey side & single storey rear extension

Householder planning permission Wiltshire
21 Oct 2026 Submitted PL/2026/06787

Ramsbury Hill, 12 Back Lane, Ramsbury, Marlborough, SN8 2QJ

Conversion of store room into a bedroom and bathroom

Listed building consent Wiltshire
21 Oct 2026 Submitted PL/2026/06793

Briary Wood, The Butts, Aldbourne, Marlborough, SN8 2DE

Removal of existing conservatory to the side of the existing building and construction of new single storey extension.

Householder planning permission Wiltshire
20 Oct 2026 Under Consultation PL/2026/06809

29 Horsefair, Malmesbury, SN16 0AP

Proposed replacement of windows and doors.

Listed building consent Wiltshire
20 Oct 2026 Submitted PL/2026/06221

Grange Court, 115d Hilperton Road, Trowbridge, BA14 7JJ

Proposed conversion and extension of existing garage building into self contained living unit

Full planning permission Wiltshire
20 Oct 2026 Submitted PL/2026/06761

119-120, West Hatch, Tisbury, Salisbury, SP3 6PE

Householder planning permission for a two-storey rear extension, a single-storey front and side extension and improved parking provision.

Householder planning permission Wiltshire
20 Oct 2026 Submitted PL/2026/06770

22 Market Place, Warminster, Wiltshire, BA12 9AN

Removal of existing staircase to replace with purpose made staircase and handrailing. Removal of stud walls to construct new stud walling to form grou...

Listed building consent Wiltshire
20 Oct 2026 Under Consultation PL/2026/05597

19 Dicketts Road, Corsham, SN13 9JR

To build a small extension/large porch to replace falling down shed and roof that covers front door. And dropped kerb for vehicular access

Householder planning permission Wiltshire
20 Oct 2026 Under Consultation PL/2026/06057

Oakfield House, Donhead St Andrew, Shaftesbury, SP7 9ER

Proposed alterations to existing garage

Householder planning permission Wiltshire
20 Oct 2026 Under Consultation PL/2026/06660

1-2 Kingston Road, Bradford On Avon, BA15 1AB

Proposed new raised terrace to existing dwelling following the removal of dilapidated roof structure with associated structural repairs to stonework a...

Householder planning permission Wiltshire
20 Oct 2026 Under Consultation PL/2026/06749

2 New Buildings, Nursteed Road, Devizes, SN10 3DZ

Single storey porch extension to the front elevation, a replacement extension to the rear of the property, internal alterations, and boundary treatmen...

Householder planning permission Wiltshire
20 Oct 2026 Under Consultation PL/2026/06764

8 Parkside, Chippenham, SN15 1LX

Certificate of lawfulness for proposed erection of a single storey side extension

Lawful development Wiltshire
20 Oct 2026 Under Consultation PL/2026/06767

1-2 Kingston Road, Bradford On Avon, BA15 1AB

Proposed new raised terrace to existing dwelling following the removal of dilapidated roof structure with associated structural repairs to stonework a...

Listed building consent Wiltshire
19 Oct 2026 Under Consultation PL/2026/06703

Old Rectory, Stockton, Warminster, BA12 0SE

Erection of single storey rear extension and internal alterations

Householder planning permission Wiltshire
19 Oct 2026 Under Consultation PL/2026/06732

Cedar Cottage, 44 High Street, Sutton Benger, Chippenham, SN15 4RF

Demolition of two outbuildings for a single-storey rear extension. Extension to outbuilding and partially clad in timber.

Householder planning permission Wiltshire
19 Oct 2026 Under Consultation PL/2026/06738

Old Rectory, Stockton, Warminster, BA12 0SE

Erection of single storey rear extension and internal alterations

Listed building consent Wiltshire
19 Oct 2026 Submitted PL/2026/04825

Coxes Hill Barn, Lower North Wraxall, Chippenham, SN14 7AD

To replace the two sets of existing rotten and warped french doors at the rear of the house within the same openings, with two matching sets of two-le...

Listed building consent Wiltshire
19 Oct 2026 Submitted PL/2026/06078

1 Sunnybank, Hilperton Road, Trowbridge, BA14 7JE

Retrospective Application for a 2 bay open car port

Householder planning permission Wiltshire
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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 Wiltshire?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Wiltshire. You can also narrow the alert to a postcode, street, or drawn area.

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