House extensions in Mendip

Mendip received 428 householder applications in the last 12 months - about 8 a week. Rear extensions and garage works are the most common. Of the 298 decided so far, 265 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 139 applications
Yesterday Registered 2026/0948/LBC

Hill House High Street Buckland Dinham Frome Somerset BA11 2QR

replacement of roof on the garden room

Listed Building Consent Mendip
2 days ago Registered 2026/1736/HSE

35 Marston Lane Frome Somerset BA11 4DR

Demolish existing porch. Erect a new porch, formalise attic room to a habitable bedroom, demolish existing extension and erect a new single storey ext...

Householder Application Mendip
7 Sept 2026 Registered 2026/1591/HSE

6 Berkley Road Frome Somerset BA11 2ED

Erection of single storey side/rear extension to dwelling

Householder Application Mendip
4 Sept 2026 Registered 2026/1615/HSE

5 James Close Holcombe Shepton Mallet Somerset BA3 5HA

Proposed first floor extension

Householder Application Mendip
4 Sept 2026 Registered 2026/1679/HSE

125 Leys Lane Frome Somerset BA11 2JS

Two storey side extension and first floor extension over garage

Householder Application Mendip
2 Sept 2026 Registered 2026/1587/LBC

4 Bath Road Beckington Frome Somerset BA11 6SW

Internal alterations and refurbishment. Replacement of the modern timber and upvc glazing to the rear and sides of the building. Replacement stable do...

Listed Building Consent Mendip
2 Sept 2026 Registered 2026/1586/HSE

4 Bath Road Beckington Frome Somerset BA11 6SW

Internal alterations and refurbishment. Replacement of the modern timber and upvc glazing to the rear and sides of the building. Replacement stable do...

Householder Application Mendip
2 Sept 2026 Registered 2026/1650/HSE

Brackenberry House Green Street Foxcote Radstock Somerset BA3 5YE

Extension and transformation of existing bungalow, rear and front extension, second storey extension plus inclusion of outbuilding to the rear.

Householder Application Mendip
28 Aug 2026 Registered 2026/1620/FUL

Knapps Farm Kings Road Doulting Shepton Mallet Somerset BA4 4LA

Alter allocated access route to two lodges at Knapps Farm to another existing access route, install a parking area and pedestrian path to one of the l...

Full Application Mendip
28 Aug 2026 Registered 2026/1663/HSE

Pantiles Parsonage Lane Chilcompton Radstock Somerset BA3 4JZ

Erection of single & two-storey rear extensions, pergola, replacement dormers and first floor side extension.

Householder Application Mendip
27 Aug 2026 Registered 2026/1622/HSE

29 Nunney Road Frome Somerset BA11 4LA

Construction of hardstanding parking for 2 cars and associated fencing to the rear garden

Householder Application Mendip
26 Aug 2026 Registered 2026/0697/LBC

Woodbourne House West Shepton Shepton Mallet Somerset BA4 5UN

Removal of damaged non original fireplace insert to restore original opening, for installation of wood fire stove.

Listed Building Consent Mendip
26 Aug 2026 Registered 2026/1631/FUL

Flat 1 North End House 14 Bridge Street Frome Somerset BA11 1BB

Proposed alterations to unauthorised sturcture to approve its permanent retention.

Full Application Mendip
25 Aug 2026 Registered 2026/1356/HSE

27 The Roman Way Glastonbury Somerset BA6 8AB

Proposed single storey Rear extension, raised decking area & raised parking to front of dwelling.

Householder Application Mendip
25 Aug 2026 Registered 2026/1630/LBC

Wootton House Back Lane Butleigh Wootton Street Somerset BA6 8TX

Internal works to include the relocation of the staircase as approved on application 2025/0362/LBC and conversion of attic

Listed Building Consent Mendip
24 Aug 2026 Registered 2026/1607/LBC

Jackdaw Cottage Kale Street Batcombe Shepton Mallet Somerset BA4 6AB

Application for the erection of a rear single-storey extension and the refurbishment of the principal building, to include repair and upgrade of exist...

Listed Building Consent Mendip
24 Aug 2026 Registered 2026/1606/HSE

Jackdaw Cottage Kale Street Batcombe Shepton Mallet Somerset BA4 6AB

Application for the erection of a rear single-storey extension and the refurbishment of the principal building, to include repair and upgrade of exist...

Householder Application Mendip
20 Aug 2026 Registered 2026/1242/LBC

61 Vallis Road Frome Somerset BA11 3EG

Retrospective permission for movement of ground floor bathroom to first floor & removal and replacement of historic flag stone flooring for installati...

Listed Building Consent Mendip
20 Aug 2026 Registered 2026/1584/HSE

51 Mendip Vale Coleford Radstock Somerset BA3 5PR

Proposed single storey rear/side extension

Householder Application Mendip
20 Aug 2026 Registered 2026/1585/HSE

1 Stoberry Avenue Wells Somerset BA5 2TF

Demolition of existing attached garage & side extension with the erection of double & single storey front/side extensions

Householder Application Mendip
19 Aug 2026 Registered 2026/1545/HSE

Hirundo Marston Lane Frome Somerset BA11 4DS

Alterations to the roof, including raising the roof and eaves to create first-floor accommodation, with timber cladding and associated external altera...

Householder Application Mendip
19 Aug 2026 Registered 2026/1512/HSE

16 Preywater Road Wookey Wells Somerset BA5 1LE

Single storey rear extension.

Householder Application Mendip
18 Aug 2026 Registered 2026/1573/FUL

1 Tuckers Barns Feltham Hill Frome Somerset BA11 5NA

Replace existing wooden playroom/garden building, erection of wooden garage/garden building

Full Application Mendip
17 Aug 2026 Registered 2026/1500/HSE

14 New Buildings Frome Somerset BA11 1PB

Single storey extension to rear of property.

Householder Application Mendip
17 Aug 2026 Registered 2026/1533/LBC

Flat 2 St Catherines Court Catherine Street Frome Somerset BA11 1DA

Removal of modern non-structural partition & kitchenette to create open-plan living/kitchen area.

Listed Building Consent Mendip
17 Aug 2026 Registered 2026/1543/CLP

Crispin Secondary School Church Road Street Somerset BA16 0AD

Application for a proposed lawful development certificate for siting of a modular portacabin on existing hardstanding to provide a facilities manageme...

Certificate of Proposed Use/Development Mendip
14 Aug 2026 Registered 2026/1566/LBC

2 Priory Road Wells Somerset BA5 1SY

Internal alterations to convert into 2no. residential units. Reconfigure ground-floor retail unit to confirm with 2025/1121/PED. Install Solar PV Pane...

Listed Building Consent Mendip
13 Aug 2026 Registered 2026/1561/HSE

Elm Batch Kennel Batch Wookey Hole Wells Somerset BA5 1AY

Raise existing roof to provide additional bedrooms & construct a rear gable to mirror existing front gable.

Householder Application Mendip
12 Aug 2026 Awaiting decision 2026/1480/CLP

37 Westover Frome Somerset BA11 4ET

Demolition of existing single-storey extesion porch and erection of utility room with mono-pitched roof.

Certificate of Proposed Use/Development Mendip
11 Aug 2026 Registered 2026/1537/FUL

40 West End Street Somerset BA16 0LW

Change of Use from Hot Food Takeaway to a Residential Dwelling with fenestration alterations

Full Application Mendip
10 Aug 2026 Registered 2026/1508/HSE

Wraxall Lodge Wraxall Road Wraxall Shepton Mallet Somerset BA4 6RQ

Extension to existing house to create garden room and additional PV panels.

Householder Application Mendip
10 Aug 2026 Registered 2026/1513/CLP

1 Stoberry Avenue Wells Somerset BA5 2TF

Certificate of lawfulness of proposed single storey rear extension and loft conversion within permitted development limits.

Certificate of Proposed Use/Development Mendip
10 Aug 2026 Registered 2026/1520/FUL

3 Mountery Close Wells Somerset BA5 2QW

Change of use from dwellinghouse (Class C3) to music studio (Class E), changes to roof over link between house & garage & erection of rear extensions ...

Full Application Mendip
10 Aug 2026 Registered 2026/1518/HSE

Sycamore House 2 Mountery Close Wells Somerset BA5 2QW

Single storey rear extension.

Householder Application Mendip
6 Aug 2026 Registered 2026/1487/APP

Laverton House Old School To Foxholes Lane Laverton Frome Somerset BA2 7QY

Part approval of details reserved by condition 3 (Joinery Details) on listed building consent 2023/1721/LBC (New timber-framed sash windows to east an...

Approval of Details - Cond Mendip
5 Aug 2026 Awaiting decision 2026/1494/HSE

Stonehouse Prestleigh Road Evercreech Shepton Mallet Somerset BA4 6JY

Proposed new window and widened door to rear outbuilding dwelling

Householder Application Mendip
4 Aug 2026 Registered 2026/1460/FUL

Outbuilding The Batch Draycott Cheddar Somerset

Conversion and extension of an existing outbuilding to create a dwelling.

Full Application Mendip
4 Aug 2026 Registered 2026/1483/HSE

The Lodge Rowden House 2 Vallis Road Frome Somerset BA11 3EA

Retrospective application for the demolition of garage and outbuildings, replace with single storey extension, construction of double carport with hom...

Householder Application Mendip
4 Aug 2026 Registered 2026/1484/LBC

The Lodge Rowden House 2 Vallis Road Frome Somerset BA11 3EA

Retrospective application for the demolition of garage and outbuildings, replace with single storey extension, construction of double carport with hom...

Listed Building Consent Mendip
4 Aug 2026 Registered 2026/1474/HSE

43 Willow Road Street Somerset BA16 0RU

Erection of a new single storey extension on the rear elevation.

Householder Application Mendip
4 Aug 2026 Registered 2026/1475/CLP

19 Holly Court Frome Somerset BA11 2SQ

Application for a proposed lawful development certificate for the erection of a glazed conservatory on rear elevation.

Certificate of Proposed Use/Development Mendip
3 Aug 2026 Registered 2026/1459/HSE

Ubley Hill Farm Ubley Drove Charterhouse Cheddar Somerset BS40 7XN

Single storey side and rear extensions

Householder Application Mendip
3 Aug 2026 Registered 2026/1482/HSE

4 Cedar Woods Top Street Pilton Shepton Mallet Somerset BA4 4DQ

Addition of a two storey extension to the east of the existing property with associated landscaping.

Householder Application Mendip
3 Aug 2026 Registered 2026/1471/CLP

Moorland House Bay Lane Draycott Cheddar Somerset BS27 3TA

Application for a proposed lawful development certificate for the demolition of the existing single-storey rear porch and replacement with a single-st...

Certificate of Proposed Use/Development Mendip
3 Aug 2026 Registered 2026/1468/HSE

9 Foster Road Frome Somerset BA11 1NU

Demolition of existing rear extension & rear garage. Erection of rear single storey extension with flat roof. Addition of 2 x rooflights to rear above...

Householder Application Mendip
31 Jul 2026 Registered 2026/1458/CLP

The Elms Breech Lane West Pennard Glastonbury Somerset BA6 8NP

Certificate of lawfulness of proposed siting of mobile home on residential land for ancillary residential use.

Certificate of Proposed Use/Development Mendip
31 Jul 2026 Registered 2026/1455/HSE

Gemini House Long Street Croscombe Shepton Mallet Somerset BA5 3QH

Internal and external alterations, erection of external store and erection of replacement garden room.

Householder Application Mendip
31 Jul 2026 Registered 2026/1456/LBC

Gemini House Long Street Croscombe Shepton Mallet Somerset BA5 3QH

Internal and external alterations, erection of external store and erection of replacement garden room

Listed Building Consent Mendip
30 Jul 2026 Approved 2026/1448/HSE

1 Lavender Close Faulkland Radstock Somerset BA3 5WH

Proposed First Floor Rear Extension

Householder Application Mendip
29 Jul 2026 Registered 2026/1127/LBC

The Bishops Eye Wells Somerset BA5 2RE

The proposed repairs comprise the stitching of cracked stone stair treads, the stone column, and cracks within the stone walls using stainless steel d...

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

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