House extensions in South Somerset

South Somerset received 422 householder applications in the last 12 months - about 8 a week. Garage works and rear extensions are the most common. Of the 298 decided so far, 290 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 144 applications
8 Sept 2026 Awaiting decision 26/02127/PDE

52 Lavers Oak Martock Somerset TA12 6HG

Erection of single storey rear extension which would extend beyond the rear wall of the original house by 3.7 metres, with a maximum height of 3.9 met...

PA Larger Home Extension South Somerset
7 Sept 2026 Awaiting decision 26/02009/HOU

Moberleys Church Street Milborne Port Somerset DT9 5DJ

Alterations and extensions to existing dwellinghouse.

Householder Application South Somerset
4 Sept 2026 Awaiting decision 26/01951/FUL

Old Bank House High Street Castle Cary Somerset BA7 7AW

Retrospective Application to regularise the erection of a timber enclosure, container store and cold store at the rear of the property

Full Application South Somerset
3 Sept 2026 Awaiting decision 26/01752/LBC

Albion House 1 South Street Wincanton Somerset BA9 9DH

Like-for-like repair and reinstatement of fire-damaged modern fabric within the rear workshop & to retain surviving historic features

Listed Building Consent South Somerset
3 Sept 2026 Awaiting decision 26/02083/HOU

1 Ancastle Avenue Ansford Castle Cary Somerset BA7 7JE

Installation of new window opening to South East elevation of existing dwelling, and internal works.

Householder Application South Somerset
3 Sept 2026 Awaiting decision 26/02013/HOU

Glebe Cottage Hambridge Langport Somerset TA10 0BQ

Demolish and rebuild the existing lean-to extension, construct a stepped two-storey and single-storey rear extension, demolish the existing garage and...

Householder Application South Somerset
2 Sept 2026 Awaiting decision 26/01909/FUL

Land At 1 Hillgrove Avenue Yeovil Somerset BA20 2LP

Erection of a Self Build Single Storey Dwelling with a Detached Garage at the Rear of an Existing Dwelling and Associated Works. Demolish Existing Gar...

Full Application South Somerset
2 Sept 2026 Awaiting decision 26/01941/LBC

Drakes Farmhouse Ilton Ilminster Somerset TA19 9EY

Fit chimney pots and bird guards to three chimneys to prevent rain water ingress.

Listed Building Consent South Somerset
1 Sept 2026 Awaiting decision 26/01836/HOU

4 Windmill Cottages Windmill Lane Montacute Yeovil Montacute Somerset TA15 6UT

Conversion of the existing detached garage to ancillary accommodation (granny annexe) associated to the main dwelling, including replacement of the ex...

Householder Application South Somerset
1 Sept 2026 Awaiting decision 26/01489/FUL

Dingford Green Dommett Buckland St Mary Chard Somerset TA20 3JW

Extension to single storey dwelling. Demolition of stable, relocation of barn, erection of new garage and construction of flint stone wall.

Full Application South Somerset
1 Sept 2026 Awaiting decision 26/01846/HOU

Hornsey Hornsey Lane Buckland St Mary Chard Somerset TA20 3QG

Removal of existing outbuilding and erection of two-storey side extension.

Householder Application South Somerset
27 Aug 2026 Awaiting decision 26/01940/COL

19 St Margarets Road Tintinhull Yeovil Somerset BA22 8PL

Application for a Lawful Development Certificate for the proposed erection of a detached garden room to the rear garden

Certificate of Lawful Use or Development South Somerset
26 Aug 2026 Awaiting decision 26/01756/LBC

Yew Trees Church Street Kingsbury Episcopi Martock Somerset TA12 6AU

Proposed Gable Wall and Roof Repairs

Listed Building Consent South Somerset
26 Aug 2026 Awaiting decision 26/01935/HOU

White Cottage Barrows Hill East Chinnock Yeovil Somerset BA22 9ER

Erection of a single-storey extension to existing garage to create a storage area measuring approximately 2.8m x 6m (16.8m footprint)

Householder Application South Somerset
26 Aug 2026 Awaiting decision 26/01913/LBC

2 Southfields Horton Cross Ilminster Somerset TA19 9PT

Replacement of three deteriorated timber windows with like-for-like handmade timber replicas (Implemented) and proposed replacement of one further det...

Listed Building Consent South Somerset
26 Aug 2026 Awaiting decision 26/01878/HOU

Maytree Cottage Red Hill Curry Rivel Langport Somerset TA10 0PH

Replacement extensions, replacement roof and internal alterations

Householder Application South Somerset
25 Aug 2026 Awaiting decision 26/02008/HOU

28 Thorndun Park Drive Chard Somerset TA20 1DH

Erection of a new garage

Householder Application South Somerset
24 Aug 2026 Awaiting decision 26/01868/COL

61 & 61A The Park Yeovil Somerset BA20 1DF

Application for a Lawful Development Certificate for the Proposed Change of Floor Layouts for 61 and 61A The Park

Certificate of Lawful Use or Development South Somerset
21 Aug 2026 Awaiting decision 26/01985/LBC

The Old Forge High Street Charlton Horethorne Sherborne Dorset DT9 4PB

Internal alterations to include removing walls of modern construction, new walls to increase the size of the kitchen, new floor tiles and repositionin...

Listed Building Consent South Somerset
21 Aug 2026 Awaiting decision 26/01460/HOU

Eden House Charlton Musgrove Wincanton Somerset BA9 8EZ

Single Storey Side & Rear Extension with Associated Internal Alterations, Erection of Detached Garage with Home Office Over & Relocation of Swimming P...

Householder Application South Somerset
21 Aug 2026 Awaiting decision 26/01715/HOU

22 Martock Lane Ash Martock Somerset TA12 6NR

Conversion of existing internal garage to a bedroom and en-suite. Additional external detached single garage and car port.

Householder Application South Somerset
21 Aug 2026 Awaiting decision 26/01891/FUL

Barn At Land East Of Blackacre Hill North Cheriton Templecombe Somerset BA8 0AS

Erect extension to barn conversion under construction, form drive and enlarge curtilage

Full Application South Somerset
20 Aug 2026 Awaiting decision 26/01875/HOU

Hope Farm Combe Hill Templecombe Somerset BA8 0LL

Erection of Oak framed Garage with first floor home office and storage

Householder Application South Somerset
20 Aug 2026 Awaiting decision 26/01795/FUL

1 - 3 Silver Street Shepton Beauchamp Ilminster Somerset TA19 0JU

Alteration and extension of No.s 1 to 3 Silver Street including: Reinstating No. 2 by internal alterations of No.s 1 and 3 and construction a two stor...

Full Application South Somerset
20 Aug 2026 Awaiting decision 26/01892/HOU

Inwood House Inwood Henstridge Templecombe Somerset BA8 0PF

Construction of a single storey link extension and alterations.

Householder Application South Somerset
19 Aug 2026 Awaiting decision 26/01869/FUL

Rhodes House Farm Landshire Lane Henstridge Templecombe Dorset BA8 0SD

Extension to existing covered yard.

Full Application South Somerset
19 Aug 2026 Awaiting decision 26/01698/FUL

Unit 9, Bartlett Court 36 Sea King Road Lynx Trading Estate Yeovil Somerset BA20 2NZ

Proposed health and wellness centre. New entrance windows and doors, and new cladding to front elevation

Full Application South Somerset
18 Aug 2026 Awaiting decision 26/01936/HOU

10 Nash Lane East Coker Yeovil Somerset BA20 2HN

Extension to Existing Garage with associated steps and bin storage

Householder Application South Somerset
18 Aug 2026 Awaiting decision 26/01929/HOU

Stowey Barn Stowey Lane Fivehead Taunton Somerset TA3 6PR

Proposed rear single storey extension

Householder Application South Somerset
18 Aug 2026 Awaiting decision 26/01937/PDE

78 Cedar Grove Yeovil Somerset BA21 3JS

Erection of single storey rear extension which would extend beyond the rear wall of the original house by 6 metres, with a maximum height of 3.3 metre...

PA Larger Home Extension South Somerset
17 Aug 2026 Awaiting decision 26/01928/HOU

89 Glenthorne Avenue Yeovil Somerset BA21 4PW

Single storey flat roof side extension

Householder Application South Somerset
17 Aug 2026 Awaiting decision 26/01876/HOU

53 Barn Street Crewkerne Somerset TA18 8BP

Proposed repair and renewal works to the existing roof

Householder Application South Somerset
17 Aug 2026 Awaiting decision 26/01877/LBC

53 Barn Street Crewkerne Somerset TA18 8BP

Proposed repair and renewal works to the existing roof

Listed Building Consent South Somerset
14 Aug 2026 Awaiting decision 26/01907/HOU

5 Elmleigh Road Martock Somerset TA12 6EF

Proposed Home Gym

Householder Application South Somerset
13 Aug 2026 Awaiting decision 26/01899/HOU

Bishops Farm Bishops Lane Hardington Mandeville Yeovil Somerset BA22 9PJ

First floor extension, single storey extension, new porch and alterations.

Householder Application South Somerset
13 Aug 2026 Awaiting decision 26/01900/HOU

29 Lyde Road Yeovil Somerset BA21 5AT

Creation of a front gable matching that of the existing street scene to the West.

Householder Application South Somerset
13 Aug 2026 Awaiting decision 26/01727/LBC

Manor House Littleton Somerton Somerset TA11 6NP

Repairs to combined modern (1970s) walling and associated roofing on the most westerly gable and attached northerly walling adjacent, Remove modern (1...

Listed Building Consent South Somerset
13 Aug 2026 Awaiting decision 26/01682/HOU

Old Manor Farmhouse Woolston Road North Cadbury Yeovil Somerset BA22 7BL

Proposed extension to ground floor of main house to form vestibule. Refurbishment of existing office and store room

Householder Application South Somerset
13 Aug 2026 Awaiting decision 26/01683/LBC

Old Manor Farmhouse Woolston Road North Cadbury Yeovil Somerset BA22 7BL

Proposed extension to ground floor of main house to form vestibule. Refurbishment of existing office and store room

Listed Building Consent South Somerset
13 Aug 2026 Awaiting decision 26/01714/HOU

106 Seaton Road Yeovil Somerset BA20 2AR

Erection of a single storey rear extension

Householder Application South Somerset
13 Aug 2026 Awaiting decision 26/01732/LBC

Suthfield House 11 Quaperlake Street Bruton Somerset BA10 0HF

Removal of a part-modern stone wall to create new vehicular access from Patwell Lane to the lower rear garden, together with the regrading of levels a...

Listed Building Consent South Somerset
13 Aug 2026 Awaiting decision 26/01731/HOU

Suthfield House 11 Quaperlake Street Bruton Somerset BA10 0HF

Removal of a part-modern stone wall to create new vehicular access from Patwell Lane to the lower rear garden, together with the regrading of levels a...

Householder Application South Somerset
13 Aug 2026 Awaiting decision 26/01817/HOU

The Nook Blackwell Road Wales Queen Camel Yeovil Somerset BA22 7PD

Proposed garden room, similar in style and materials to the existing house.

Householder Application South Somerset
12 Aug 2026 Awaiting decision 26/01750/HOU

24 Grove Avenue Yeovil Somerset BA20 2BB

Proposed Rear Dormer Loft Extension to Dwelling

Householder Application South Somerset
12 Aug 2026 Awaiting decision 26/01790/LBC

Westlake House High Street West Coker Yeovil Somerset BA22 9AH

Remove existing roof and replace with new roof, insert new gable window, internal and external alterations to create ancillary guest accommodation

Listed Building Consent South Somerset
12 Aug 2026 Awaiting decision 26/01789/HOU

Westlake House High Street West Coker Yeovil Somerset BA22 9AH

+Remove existing roof and replace with new roof, insert new gable window, internal and external alterations to create ancillary guest accommodation

Householder Application South Somerset
11 Aug 2026 Awaiting decision 26/01610/LBC

41 New Street North Perrott Crewkerne Somerset TA18 7ST

Damage repair works including dismantling and reconstruction of displaced stone masonry using reclaimed materials and matching lime mortar, removal an...

Listed Building Consent South Somerset
10 Aug 2026 Awaiting decision 26/01782/LBC

The Factory Shop Great Western Road Chard Somerset TA20 1EQ

Internal alterations including the creation of changing rooms in existing offices, repairs to joinery & brickwork, fitting of new signage

Listed Building Consent South Somerset
7 Aug 2026 Awaiting decision 26/01786/HOU

Parrett House Parrett Works Martock Somerset TA12 6AE

Reinstatement of partially collapsed historic rubblestone boundary wall.

Householder Application South Somerset
7 Aug 2026 Awaiting decision 26/01787/LBC

Parrett House Parrett Works Martock Somerset TA12 6AE

Reinstatement of partially collapsed historic rubblestone boundary wall.

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

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