House extensions in South Ayrshire

South Ayrshire received 310 householder applications in the last 12 months - about 6 a week. Garage works and garden rooms are the most common. Of the 249 decided so far, 248 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 85 applications
Yesterday Pending consideration 26/00704/LBC

58 South Beach Troon South Ayrshire KA10 6EG

Alterations and extension to listed building

Listed Building Consent South Ayrshire
Yesterday Pending consideration 26/00703/APP

18 Glendoune Street Girvan South Ayrshire KA26 0AB

Alterations to out-building, formation of garage and ancillary accommodation (Storage)

Planning Permission South Ayrshire
Yesterday Pending consideration 26/00700/APP

4 Fiddison Place Prestwick South Ayrshire KA9 2TJ

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
Yesterday Insufficient fee 26/00683/APP

Yard B730 From A719 Junction At Rabbit Wood To A77t Junction At Bogend Toll Symington South Ayrshire

Erection of storage shed

Planning Permission South Ayrshire
22 Oct 2026 Pending consideration 26/00699/APP

64 South Beach Troon South Ayrshire KA10 6EG

Erection of pergola

Planning Permission South Ayrshire
22 Oct 2026 Pending consideration 26/00663/APP

3 Hawthorn Avenue Prestwick South Ayrshire KA9 2HN

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
21 Oct 2026 Pending consideration 26/00689/APP

Fortacres Farm Symington South Ayrshire KA2 9AY

Alterations and extension to existing agricultural shed

Planning Permission South Ayrshire
21 Oct 2026 Pending consideration 26/00656/APP

5 Tig Road Ayr South Ayrshire KA8 9AU

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
20 Oct 2026 Pending consideration 26/00686/APP

1 Cairnhill Court Maybole South Ayrshire KA19 8BL

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
19 Oct 2026 Pending consideration 26/00693/COL

60 Bathurst Drive Ayr South Ayrshire KA7 4UA

Certificate of lawfulness for proposed alterations and extension to dwellinghouse

Certificate of Lawfulness South Ayrshire
14 Oct 2026 Pending consideration 26/00679/APP

18 Westport Tarbolton South Ayrshire KA5 5QH

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
14 Oct 2026 Pending consideration 26/00677/APP

12 Ailsa View Gardens Ayr South Ayrshire KA7 4JG

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
14 Oct 2026 Pending consideration 26/00682/APP

Tullisland Old Loans Road Dundonald South Ayrshire KA2 9DB

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
12 Oct 2026 Pending consideration 26/00674/APP

34 Ashgrove Street Ayr South Ayrshire KA7 3BG

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
9 Oct 2026 Pending consideration 26/00669/APP

45 Hillhead Coylton South Ayrshire KA6 6JT

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
8 Oct 2026 Pending consideration 26/00666/APP

Road Transport Workshop 9 Whitfield Drive Ayr South Ayrshire KA8 9RX

Alterations and extension to existing building

Planning Permission South Ayrshire
8 Oct 2026 Pending consideration 26/00638/APP

85 Bentinck Drive Troon South Ayrshire KA10 6HZ

Erection of garden room

Planning Permission South Ayrshire
7 Oct 2026 Pending consideration 26/00664/APP

9 Inverkar Road Ayr South Ayrshire KA7 2JS

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
6 Oct 2026 Pending consideration 26/00660/APP

Alana Cottage Dundonald South Ayrshire KA2 9BY

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
5 Oct 2026 Pending consideration 26/00647/APP

House Of Craigie C8 From A719 Junction At Adamhill To Council Boundary Craigie South Ayrshire KA1 5NA

Erection of replacement gate and fence and erection of shed

Planning Permission South Ayrshire
2 Oct 2026 Pending consideration 26/00586/APP

Mainholm Farm Ayr South Ayrshire KA6 5HD

Change of use and alterations and extensions to outbuildings to form 4 dwellinghouses and associated works

Planning Permission South Ayrshire
2 Oct 2026 Pending consideration 26/00655/APP

50 Carcluie Crescent Ayr South Ayrshire KA7 4SZ

Alteration and extension to dwellinghouse

Planning Permission South Ayrshire
2 Oct 2026 Pending consideration 26/00650/APP

1 Highfield Avenue Prestwick South Ayrshire KA9 2ET

Alterations and extension to dwellingouse

Planning Permission South Ayrshire
1 Oct 2026 Pending consideration 26/00651/COL

59 Lochgreen Avenue Troon South Ayrshire KA10 6UW

Certificate of Lawfulness for proposed alterations and extension to dwellinghouse

Certificate of Lawfulness South Ayrshire
1 Oct 2026 Pending consideration 26/00649/APP

11 Barns Crescent Ayr South Ayrshire KA7 2BW

Alterations and extension to dwellinghouse and erection of summerhouse

Planning Permission South Ayrshire
1 Oct 2026 Pending consideration 26/00648/APP

1 Redburn Cottage A77T From B734 Junction At Redburn House To Main Street Ballantrae Ballantrae South Ayrshire KA26 0JX

Alterations to dwellinghouse and formation of balcony

Planning Permission South Ayrshire
1 Oct 2026 Pending consideration 26/00637/APP

7 South Harbour Street Ayr South Ayrshire KA7 1HZ

Alterations to, and repainting of building

Planning Permission South Ayrshire
29 Sept 2026 Pending consideration 26/00644/APP

Dalmullin Privick Mill Road Annbank South Ayrshire KA6 5JA

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
28 Sept 2026 Pending consideration 26/00641/APP

6 Blackburn Place Ayr South Ayrshire KA7 2XF

Alterations to dwellinghouse

Planning Permission South Ayrshire
25 Sept 2026 Pending consideration 26/00590/APP

154 Main Street Prestwick South Ayrshire KA9 1PB

Erection of an annex to be used as Short Term Let accommodation

Planning Permission South Ayrshire
25 Sept 2026 Approved 16 Oct 26/00572/COL

STREET RECORD Campbell Court Ayr South Ayrshire

Alterations to 4 blocks of flats

Certificate of Lawfulness South Ayrshire
25 Sept 2026 Pending consideration 26/00639/APP

32B Kyle Street Ayr South Ayrshire KA7 1RZ

Alterations to dwellingflat

Planning Permission South Ayrshire
24 Sept 2026 Pending consideration 26/00587/APP

Sommerville Pavilion Glebe Park Glebe Crescent Maybole South Ayrshire KA19 7HZ

Extension and alterations to pavilion, formation of car park and associated works

Planning Permission South Ayrshire
22 Sept 2026 Pending consideration 26/00626/APP

48 Main Street Dundonald South Ayrshire KA2 9HG

Change of use of shop to form dwellinghouse and associated alterations and extension

Planning Permission South Ayrshire
22 Sept 2026 Pending consideration 26/00628/APP

31 Hannah Gardens Troon South Ayrshire KA10 7GB

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
15 Sept 2026 Pending consideration 26/00560/APP

5 Belston Holdings Ayr South Ayrshire KA6 5JD

Subdivision of planning unit, change of use and alterations and extension to building to form short term let accommodation

Planning Permission South Ayrshire
15 Sept 2026 Approved 15 Oct 26/00597/APP

41 Seafield Drive Ayr South Ayrshire KA7 4BJ

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
15 Sept 2026 Pending consideration 26/00585/APP

35 Caerlaverock Avenue Prestwick South Ayrshire KA9 1HS

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
14 Sept 2026 Pending consideration 26/00618/APP

7 St Andrew's Street Ayr South Ayrshire KA7 3AH

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
14 Sept 2026 Approved 15 Oct 26/00619/APP

31 Campbell Drive Troon South Ayrshire KA10 6XE

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
14 Sept 2026 Pending consideration 26/00620/APP

2 Yorke Road Troon South Ayrshire KA10 6EW

Erection of garden room (existing outbuilding to be removed)

Planning Permission South Ayrshire
11 Sept 2026 Approved 15 Oct 26/00600/APP

19C Crosbie Road Troon South Ayrshire KA10 6HE

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
11 Sept 2026 Approved 9 Oct 26/00617/COL

14 Old Station Wynd Troon South Ayrshire KA10 6RR

Certificate of lawfulness for proposed alterations to dwellinghouse

Certificate of Lawfulness South Ayrshire
11 Sept 2026 Pending consideration 26/00561/APP

26 Browncarrick Drive Ayr South Ayrshire KA7 4JA

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
10 Sept 2026 Pending consideration 26/00608/APP

19 Annbank Road Mossblown South Ayrshire KA6 5BH

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
10 Sept 2026 Approved 23 Sep 26/00614/COL

21 Grange Avenue Ayr South Ayrshire KA7 4SX

Certificate of lawfulness for proposed alterations and extension to dwellinghouse

Certificate of Lawfulness South Ayrshire
9 Sept 2026 Approved 5 Oct 26/00607/APP

3 Kyle Street Prestwick South Ayrshire KA9 1PQ

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
9 Sept 2026 Approved 2 Oct 26/00611/APP

14 Crawford Avenue Prestwick South Ayrshire KA9 2BN

Alterations and extension to dwellinghouse

Planning Permission South Ayrshire
8 Sept 2026 Pending consideration 26/00602/APP

4 Shanter Way Ayr South Ayrshire KA7 4PF

Erection of boundary fence and gates

Planning Permission South Ayrshire
7 Sept 2026 Pending consideration 26/00598/APP

23 Alloway Ayr South Ayrshire KA7 4PY

Installation of replacement windows (part retrospective)

Planning Permission South Ayrshire
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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 Ayrshire?
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 Ayrshire. You can also narrow the alert to a postcode, street, or drawn area.

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