House extensions in East Ayrshire

East Ayrshire received 209 householder applications in the last 12 months - about 4 a week. Rear extensions and garage works are the most common. Of the 154 decided so far, 148 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 63 applications
19 Oct 2026 Registered 26/0515/PP

1 Thomas Howie Drive Dunlop East Ayrshire Council KA3 4FA

Rear sunroom and porch

Planning Permission East Ayrshire
15 Oct 2026 Registered 26/0542/LDPU

Montgreenan Cottage Montgreenan Kilwinning KA13 7QZ

New window to be fitted to existing dwelling house

Lawful Development - Proposed Use East Ayrshire
15 Oct 2026 Registered 26/0439/PP

5 Seaford Street Kilmarnock East Ayrshire KA1 2DA

Restoration of original sandstone frontage including removal of Linostone, original stone minor repairs, removal of defective mortar and repointing.

Planning Permission East Ayrshire
14 Oct 2026 Registered 26/0523/PP

Plot 10, Garages Off Wilson Avenue. Kilmarnock KA3 7AP

Erection of detached timber garage and concrete base

Planning Permission East Ayrshire
9 Oct 2026 Awaiting decision 26/0535/LDPU

9 Dauner Way Holmhead Cumnock East Ayrshire KA18 1FP

Certificate of Lawfulness (Proposed) for an extension to rear (East) elevation of the dwellinghouse

Lawful Development - Proposed Use East Ayrshire
8 Oct 2026 Registered 26/0530/PP

1 Nithsdale Avenue New Cumnock East Ayrshire KA18 4BY

Single storey extension to the rear (North) elevation of dwellinghouse

Planning Permission East Ayrshire
8 Oct 2026 Registered 26/0478/PP

15 Cardhu Crescent Kilmarnock East Ayrshire KA3 1QX

Erection of domestic outbuilding

Planning Permission East Ayrshire
2 Oct 2026 Registered 26/0509/PP

5 Rowallan Castle Estate Kilmaurs East Ayrshire KA3 2DP

Retrospective application for the erection of a garden fence and a garden shed

Planning Permission East Ayrshire
30 Sept 2026 Registered 26/0501/PP

39 Main Road Fenwick East Ayrshire KA3 6AL

Installation of replacement flat roof covering and ventilation, installation of replacement flat roof covering to rear, external ventilation and inter...

Planning Permission East Ayrshire
30 Sept 2026 Registered 26/0500/LB

39 Main Road Fenwick East Ayrshire KA3 6AL

Installation of replacement flat roof covering and ventilation, installation of replacement flat roof covering to rear, external ventilation and inter...

Listed Building East Ayrshire
30 Sept 2026 Registered 26/0457/PP

1 Bankhead Cottages Galston East Ayrshire KA4 8PF

Erection of garage and garden shed

Planning Permission East Ayrshire
29 Sept 2026 Registered 26/0505/PP

94 Dundonald Road Kilmarnock East Ayrshire KA1 1TY

Erection of extension to side of existing dwellinghouse

Planning Permission East Ayrshire
29 Sept 2026 Registered 26/0428/LDPU

32 Harperland Drive Kilmarnock East Ayrshire KA1 1UH

Converting upper and lower flat into one property.

Lawful Development - Proposed Use East Ayrshire
28 Sept 2026 Registered 26/0470/PP

South Thorn U13 Aiket From Nether Oldhall To Brae Dunlop East Ayrshire KA3 4BP

Installation of horse riding arena and associated works, turn out pen and erection of tack room and feed store (for personal use)

Planning Permission East Ayrshire
25 Sept 2026 Registered 26/0145/PP

Gilbank Cottage U33 Woodhead From A71 To C133 Newmilns Newmilns East Ayrshire KA16 9LG

Change of use of agricultural land to form domestic curtilage and erection of domestic garage to serve dwelling

Planning Permission East Ayrshire
22 Sept 2026 Registered 26/0483/PP

10 Carnoustie Grove Fardalehill Kilmarnock East Ayrshire KA1 2PW

Proposed new garage

Planning Permission East Ayrshire
22 Sept 2026 Registered 26/0496/PP

38 Loudoun Street Mauchline East Ayrshire KA5 5BT

Proposed installation of two rear dormers.

Planning Permission East Ayrshire
15 Sept 2026 Registered 26/0490/PP

Kennox House Kennox C6 Auchenharvie Stewarton From Stewarton To Laigh Auchenharvie Stewarton East Ayrshire KA3 3EF

Proposed external alterations including replacement of rooflights and windows and installing security sensors.

Planning Permission East Ayrshire
15 Sept 2026 Registered 26/0489/LB

Kennox House Kennox C6 Auchenharvie Stewarton From Stewarton To Laigh Auchenharvie Stewarton East Ayrshire KA3 3EF

Proposed alterations including changes to internal layout, replacement of internal doors, installation of security sensors and replacement of roofligh...

Listed Building East Ayrshire
14 Sept 2026 Registered 26/0433/PP

47 Glen Orrin Avenue Kilmarnock East Ayrshire KA2 0LR

Proposed Extension to Side of Property

Planning Permission East Ayrshire
14 Sept 2026 Registered 26/0468/PP

1 Pottery Cottages A70 At Coalhall To B730 Coalhall East Ayrshire KA6 6ND

Rear house extension

Planning Permission East Ayrshire
11 Sept 2026 Approved 21 Oct 26/0465/LDPU

8 East Donington Street Darvel East Ayrshire KA17 0JR

Replacement of 7 windows within the front elevation

Lawful Development - Proposed Use East Ayrshire
8 Sept 2026 Registered 26/0475/PP

48 Main Road Fenwick East Ayrshire KA3 6AL

Replacement of existing timber windows, doors and polycarbonate roof with uPVC windows, doors and glass roof to rear of property

Planning Permission East Ayrshire
8 Sept 2026 Approved 20 Oct 26/0445/PP

Laurel Cottage 1 Friendliehead Farmhouse Courtyard Mauchline East Ayrshire KA5 6EX

Rear extension to south east corner of existing dwelling

Planning Permission East Ayrshire
8 Sept 2026 Registered 26/0455/PP

15 Main Street Kilmaurs East Ayrshire KA3 2RQ

Change of use of derelict shop to residential dwelling (Class 9) and associated external alterations

Planning Permission East Ayrshire
8 Sept 2026 Registered 26/0446/PP

105 Mauchline Road Hurlford East Ayrshire KA1 5DE

Proposed replacement and enlargement of dormer and internal alterations

Planning Permission East Ayrshire
7 Sept 2026 Registered 26/0328/LB

63 Titchfield Street Kilmarnock East Ayrshire KA1 1QS

External alterations including replacement windows (UPVC), door and installation of rooflights

Listed Building East Ayrshire
7 Sept 2026 Refused 29 Sep 26/0021/NMV

Site At Leven Drive Hurlford

Non-Material Variation to dwellinghouse with modification of external windows and doors, internal layout, roof overhang, and extension to bedroom - 23...

Non Material Variations East Ayrshire
4 Sept 2026 Awaiting decision 26/0466/PP

30B Back Rogerton Crescent Auchinleck East Ayrshire KA18 2EU

Installation of semi permanent modular galvanised steel disabled access ramp

Planning Permission East Ayrshire
4 Sept 2026 Registered 26/0404/PP

Former St Johns Church 84 Wardneuk Drive Onthank Kilmarnock East Ayrshire KA3 2EX

Change of Use, Alterations and Extension of Former Church ( Class 10) to Form Gym ( Class 11)

Planning Permission East Ayrshire
4 Sept 2026 Registered 26/0438/LDPU

Norrelgrove 2 Gilmilnscroft Cottages Auchinleck KA18 2NA

Proposed siting of a 12m x 6m lodge-style caravan within the curtilage of 2 Gilmilnscroft Cottage for use as ancillary living accommodation

Lawful Development - Proposed Use East Ayrshire
2 Sept 2026 Approved 22 Oct 26/0444/PP

Bonded Warehouses Townhead Catrine East Ayrshire

Erection of canopy building, anchored to existing concrete base.

Planning Permission East Ayrshire
31 Aug 2026 Awaiting decision 26/0442/PP

Lagg Trabbochburn Road Stair

Construction of extension to the rear and platfrom with spiral stair to the side of dwellinghouse

Planning Permission East Ayrshire
31 Aug 2026 Registered 26/0394/LB

Howard Park House Howard Park Drive Kilmarnock East Ayrshire KA1 1SA

Proposed demolition of existing extensions and replacement with new extension and internal alterations to create functional, upgraded spaces for East ...

Listed Building East Ayrshire
28 Aug 2026 Registered 26/0406/PP

Glen Avis Loganhill Road Craigens Cumnock East Ayrshire KA18 3JD

Proposed erection of workshop/garage within curtilage of a residential dwellinghouse.

Planning Permission East Ayrshire
27 Aug 2026 Approved 12 Oct 26/0022/NMV

Mill Rig Wind Farm Access Waterhead Peelhill And Linbank Highway Strathaven

Upgrading of existing access track

Non Material Variations East Ayrshire
27 Aug 2026 Registered 26/0413/PP

Ironworks Cottage 3 Furnace Road Kames Muirkirk East Ayrshire KA18 3QQ

Proposed Attic Conversion with Dormers to Front and Rear

Planning Permission East Ayrshire
24 Aug 2026 Registered 26/0377/PP

Land At Allanton Woodland Darvel East Ayrshire

New entrance and gate and removal of existing access

Planning Permission East Ayrshire
21 Aug 2026 Approved 20 Oct 26/0432/LB

Dalmellington Church Knowehead Dalmellington East Ayrshire KA6 7QW

Internal re-configuration of balcony and partition/screen wall, widening of stairway, installation of window ventilation opener on the front (West) el...

Listed Building East Ayrshire
18 Aug 2026 Approved 12 Oct 26/0387/LDPU

102 Dundonald Road Kilmarnock East Ayrshire KA1 1TY

Proposed dormer to rear of dwelling and 2no. rooflights

Lawful Development - Proposed Use East Ayrshire
18 Aug 2026 Approved 9 Oct 26/0396/PP

21 Old Glasgow Road Stewarton East Ayrshire KA3 5JJ

Proposed extension to rear and side of dwelling, side dormer, erection of garage with associated alterations and downtakings.

Planning Permission East Ayrshire
17 Aug 2026 Approved 9 Oct 26/0422/PP

23 Main Road Gatehead East Ayrshire KA2 0AR

Erection of dormer extension to rear elevation

Planning Permission East Ayrshire
13 Aug 2026 Approved 9 Oct 26/0397/PP

1 Bank View Crescent Darvel East Ayrshire KA17 0LB

Erection of single storey side extension.

Planning Permission East Ayrshire
12 Aug 2026 Approved 9 Oct 26/0349/PP

Commoncraig Farm C7 Dunlop Neilston From A735 Nr Dunlop To East Renfrewshire Boundary Dunlop East Ayrshire KA3 4BH

Proposed Dormer to Rear of Property

Planning Permission East Ayrshire
12 Aug 2026 Registered 26/0385/PP

39 Milton View Gatehead East Ayrshire KA2 0AY

Alterations and extension to dwelling house

Planning Permission East Ayrshire
12 Aug 2026 Approved 8 Oct 26/0409/PP

3 Northgate Ballochmyle Mauchline East Ayrshire KA5 6JT

Proposed erection of double garage to front of dwelling and outbuilding in rear garden.

Planning Permission East Ayrshire
11 Aug 2026 Awaiting decision 26/0369/PP

Glenside Catrine Road Sorn East Ayrshire KA5 6JA

Construction of garage to side of dwellinghouse

Planning Permission East Ayrshire
11 Aug 2026 Approved 28 Aug 26/0408/LDPU

Ellisland Cottage Cloncaird Farm B742 From A713 To At South Ayrshire Boundary At Snipe Loch Doon Valley East…

Certificate if Lawfulness (Proposed) for the construction of a garage and the formation of hardstanding

Lawful Development - Proposed Use East Ayrshire
10 Aug 2026 Registered 26/0331/PP

27 Old Glasgow Road Stewarton East Ayrshire KA3 5JJ

Proposed Detached Outbuilding at Rear of Garden

Planning Permission East Ayrshire
10 Aug 2026 Registered 26/0392/PP

John Knox Church 10 High Street Stewarton East Ayrshire

Installation of a small, prefabricated metal shed for the storage of garden maintenance equipment.

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

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