House extensions in South Lanarkshire

South Lanarkshire received 566 householder applications in the last 12 months - about 11 a week. Rear extensions and garage works are the most common. Of the 446 decided so far, 425 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 157 applications
23 Oct 2026 Registered P/26/1319

41 Watt Low Avenue Rutherglen G73 2TF

Erection of single-storey rear extension

Householder South Lanarkshire
23 Oct 2026 Registered P/26/1271

12 Sherwood Avenue Uddingston G71 7NX

Alteration and enlargement of an existing front dormer window

Householder South Lanarkshire
21 Oct 2026 Registered P/26/1321

4 Otago Park East Kilbride G75 8QN

Erection of single storey side extension

Householder South Lanarkshire
21 Oct 2026 Registered P/26/1320

Belleview A706 From Lanark To Forth Cleghorn Lanark ML11 7RL

Erection of a detached garage adjacent to dwellinghouse

Householder South Lanarkshire
21 Oct 2026 Registered P/26/1277

5 Homeston Avenue Bothwell G71 8PL

Enlargement of front dormer window, installation of rear dormer window and erection of front porch

Householder South Lanarkshire
21 Oct 2026 Registered P/26/1211

49 Hareleeshill Road Larkhall ML9 2RL

Installation of new windows to the side and rear (Certificate of Lawfulness - Proposed)

Cert of lawfulness (Proposed) South Lanarkshire
21 Oct 2026 Registered P/26/1142

60 Alloway Drive Rutherglen G73 4PP

Demolition of porch, erection of single-storey side extension and associated external decking.

Householder South Lanarkshire
20 Oct 2026 Registered P/26/0067/V

4 Orchard Avenue Bothwell G71 8NF

Alternation to natural stone facade and window (Non-material variation to P/25/0971)

Non-material variation South Lanarkshire
20 Oct 2026 Registered P/26/1291

7 Chestnut Walk Strathaven ML10 6GY

Installation of replacement windows and door, new entrance steps, wood burning stove with external flue, and associated internal alterations (Certific...

Cert of lawfulness (Proposed) South Lanarkshire
20 Oct 2026 Registered P/26/1278

2 Acton Gardens East Kilbride G75 8WH

Conversion of integral garage to form habitable room

Cert of lawfulness (Proposed) South Lanarkshire
20 Oct 2026 Registered P/26/1301

15 Mount Stewart Street Carluke ML8 5EB

Installation of 3 rooflights to the rear and alterations (Certificate of Lawfulness - Proposed)

Cert of lawfulness (Proposed) South Lanarkshire
19 Oct 2026 Registered P/26/1175

31 Howe Drive Blackwood ML11 9GH

Use of existing dwelling as a residential annexe (Certificate of Lawfulness - Proposed)

Cert of lawfulness (Proposed) South Lanarkshire
19 Oct 2026 Registered P/26/1298

42 Avonbank Road Rutherglen G73 2PA

Installation of French doors to rear of flatted dwelling, construction of two raised decks and 1.8m screening fence

Householder South Lanarkshire
19 Oct 2026 Registered P/26/1281

15 Credon Gardens Rutherglen G73 4EN

Demolition of existing garage and erection of single storey extension to side and rear

Householder South Lanarkshire
19 Oct 2026 Registered P/26/1157

11 Gardenside Avenue Uddingston G71 7BU

Erection of a single storey rear extension

Householder South Lanarkshire
16 Oct 2026 Registered P/26/1302

34 Clyde Avenue Bothwell G71 8DU

Erection of single storey rear extension

Householder South Lanarkshire
15 Oct 2026 Registered P/26/1280

Abercrombie House Eaglesham Road East Kilbride G75 8EA

Installation of secure turnstiles and vehicle entry gates

Detailed planning application South Lanarkshire
15 Oct 2026 Registered P/26/1289

7 Hawthorn Hill Hamilton ML3 7LR

Erection of front porch and associated alterations

Householder South Lanarkshire
14 Oct 2026 Registered P/26/1303

99 Lilac Wynd Cambuslang G72 7GH

Erection of two storey rear extension

Householder South Lanarkshire
14 Oct 2026 Awaiting decision P/26/1290

2A Richmond Drive Rutherglen G73 3JH

Conversion of Garage into habitable rooms with associated alterations.

Householder South Lanarkshire
14 Oct 2026 Registered P/26/1256

24 Whin Place East Kilbride G74 3XS

Installation of new windows and door to existing car showroom

Detailed planning application South Lanarkshire
13 Oct 2026 Registered P/26/1295

Land At Corsehead Bagmoors Road Pettinain Lanark ML11 8SR

Erection of dwellinghouse, detached ancillary garage, access, and associated works

Detailed planning application South Lanarkshire
12 Oct 2026 Awaiting decision P/26/0062/V

Site Of Former Stonehouse Hospital Strathaven Road Stonehouse

Alteration to position of stepped access at the south east of the site (Variation of P/18/1515)

Non-material variation South Lanarkshire
12 Oct 2026 Registered P/26/0066/V

17 Blairston Avenue Bothwell G71 8RZ

Installation of a Frosted film-coated rooflight to the rear elevation (Non-material variation to P/25/0971)

Non-material variation South Lanarkshire
9 Oct 2026 Registered P/26/1275

Lilyvale Cormiston Road Quothquan Biggar ML12 6ND

Erection of single storey extension to the rear of dwelling house to form second storey and the enlargement of an existing dormer

Householder South Lanarkshire
8 Oct 2026 Registered P/26/1221

North Crookedstone House Limekilnburn Road Limekilnburn Hamilton ML3 7XG

Erection of a two-storey side conservatory.

Householder South Lanarkshire
8 Oct 2026 Registered P/26/0920

132 High Street Biggar ML12 6DH

Replacement of four front elevation windows with timber sash and case windows and replacement of the existing front door.

Householder South Lanarkshire
8 Oct 2026 Registered P/26/1191

4 Wardrop Place East Kilbride G74 4DX

Single storey rear extension and first floor side extension, erection of front porch and conversion of intergral garage into habitable room with assoc...

Householder South Lanarkshire
7 Oct 2026 Registered P/26/1248

Quothquan Lodge Libberton Muir Road Quothquan Biggar ML12 6NB

Replacement of slate roof and associated alterations (Listed Building application)

Listed building application South Lanarkshire
7 Oct 2026 Registered P/26/1231

62 Cairns Road Cambuslang G72 8PZ

Erection of single-storey extension to rear of dwellinghouse

Householder South Lanarkshire
7 Oct 2026 Registered P/26/1097

Land 45M Northwest Of 6 Devonburn Road Devonburn Road Devonburn Lanark South Lanarkshire

Erection of detached house and detached garage

Detailed planning application South Lanarkshire
6 Oct 2026 Registered P/26/1179

11 Lochinver Crescent Blantyre G72 0GT

Conversion of integral garage to form ancillary habitable accommodation. (Certificate of Lawfulness - Proposed)

Cert of lawfulness (Proposed) South Lanarkshire
6 Oct 2026 Registered P/26/1273

12 Victoria Avenue Carluke ML8 5AG

Erection of single-storey rear extension and associated alterations (Retrospective)

Householder South Lanarkshire
6 Oct 2026 Registered P/26/1223

4 Westbank Holdings Ayr Road Lanark ML11 8NL

Erection of ancillary garage

Householder South Lanarkshire
6 Oct 2026 Registered P/26/1222

4 Corra Mill Road Crossford Carluke ML8 5QW

Erection of single storey side extension and associated external alterations

Householder South Lanarkshire
5 Oct 2026 Registered P/26/1266

3 East Nerston Court East Kilbride G74 4GW

Enlargement of existing garage at rear with patio doors and formation of side dormer and rear dormer with juliet balcony.

Householder South Lanarkshire
5 Oct 2026 Registered P/26/1236

16 Applegarth Road Strathaven ML10 6HT

Proposed replacement and enlargement of existing rear dormer (Certificate of Lawfulness)

Cert of lawfulness (Proposed) South Lanarkshire
5 Oct 2026 Awaiting decision P/26/1228

45 Abercorn Drive Hamilton ML3 7EZ

Removal of the existing conservatory and erection of a single-storey rear extension.

Householder South Lanarkshire
2 Oct 2026 Registered P/26/1249

Gean Tree Cottage Shieldhill Road Quothquan Biggar ML12 6ND

Erection of single storey rear extension and associated external alterations

Householder South Lanarkshire
2 Oct 2026 Registered P/26/1234

20 Victoria Road Rutherglen G73 3QG

Demolition of exisiting detached garage and erection of single storey garden room within residential curtilage.

Householder South Lanarkshire
2 Oct 2026 Registered P/26/1012

231 Kirktonholme Road East Kilbride G74 1HB

Formation of terrace levels in front garden

Detailed planning application South Lanarkshire
1 Oct 2026 Registered P/26/1216

9 Waverley Drive Rutherglen G73 3HZ

Erection of single storey rear extension

Householder South Lanarkshire
30 Sept 2026 Registered P/26/1250

270 New Trows Road Lesmahagow ML11 0JS

Erection of detached domestic triple garage (10x 6.5x 6.5m) at rear of existing dwelling with roof storage in eaves.

Householder South Lanarkshire
30 Sept 2026 Awaiting decision P/26/1226

Kennels Cottage Baitlaws Road Lamington Biggar ML12 6HR

Erection of a single storey extension to the south west elevation, stone boundary wall to varying heights up to 2.3m on the south west side of the dwe...

Householder South Lanarkshire
30 Sept 2026 Registered P/26/1095

Ambleside Crookedshields Road East Kilbride G74 4PE

Erection of ancillary outbuilding in residential curtilage

Householder South Lanarkshire
29 Sept 2026 Registered P/26/1057

Townfoot Farm House Townfoot Farm Blantyre Farm Road Blantyre G71 7RR

Erection of upper floor extension and erection of sunroom with associated alterations

Householder South Lanarkshire
29 Sept 2026 Awaiting decision P/26/1233

10 Limeside Avenue Rutherglen G73 3PN

Installation of French doors to the rear elevation and internal alterations. (Certificate of Lawfulness - Proposed)

Cert of lawfulness (Proposed) South Lanarkshire
29 Sept 2026 Registered P/26/1224

6 Blairtum Drive Rutherglen G73 3RY

Demolition of existing conservatory and detached garage. Erection of single story rear extension and associated alterations

Householder South Lanarkshire
29 Sept 2026 Registered P/26/1161

Cormiston Towers Farm Cottage C24 From Thankerton To A702 Biggar ML12 6NS

Erection of single storey rear extension, raised decking and associated external alterations

Householder South Lanarkshire
29 Sept 2026 Approved 9 Oct P/26/1156

The Orchard House 19A Broughton Road Biggar ML12 6AN

Conversion of rear windows into French doors and sidelight windows, with associated external alterations (Certificate of Lawfulness - Proposed)

Cert of lawfulness (Proposed) South Lanarkshire
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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 Lanarkshire?
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 Lanarkshire. You can also narrow the alert to a postcode, street, or drawn area.

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