House Extension planning applications in Northern Ireland

Covers householder extension applications — single-storey rear and two-storey side extensions, loft conversions and dormers, wraparound extensions, porches, garage conversions, outbuildings and garden rooms, orangeries and conservatories.

1,024 last 90 days
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248 last 30 days
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79 last 14 days

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Showing 50 of 1,024 applications
LA01/2026/0724/F 2 days ago Valid

22 Ballyvennaght Road, Ballycastle

Alterations to front elevation - ground floor window enlargement

Full Causeway And Glens
LA05/2026/0573/F 6 Jul 2026 Valid

11 Tullynore Road, Hillsborough, BT26 6QE

Domestic ancillary accommodation at existing dwelling 11 Tullynore Road, Hillsborough

Full Lisburn And Castlereagh 6 Jul 2026
LA06/2026/0617/F 6 Jul 2026 Consultation Open

4 Breckenridge, Donaghadee, BT21 0QJ

Dormer window to side; front porch

Full Ards And North Down 6 Jul 2026
LA09/2026/0704/F 6 Jul 2026 Awaiting decision

14 Glenmaquill Road Magherafelt BT45 5EW

Extension to dwelling

Full Mid Ulster 6 Jul 2026
LA09/2026/0705/O 6 Jul 2026 Awaiting decision

Land approximately 100M East of 31 Legane Road Legane Aughnacloy

Dwelling and garage with associated landscaping

Outline Mid Ulster 6 Jul 2026
LA06/2026/0613/F 5 Jul 2026 Consultation Open

Within curtilage of 22 Ravara Road, Ballygowan (adjacent and southwest of No.22A)

Doube garage wih gym (to replace fire-damaged stables)

Full Ards And North Down 5 Jul 2026
LA01/2026/0704/F 3 Jul 2026 Valid

55 Glenshesk Road, Ballycastle

Proposed single storey rear extension with internal and external alterations.

Full Causeway And Glens 3 Jul 2026
LA01/2026/0706/F 3 Jul 2026 Consultation Open

47 Causeway Street, Portrush

Two storey extension to rear of existing dwelling to provide improved living/kitchen/dining and bedroom accommodation (as previously approved under LA...

Full Causeway And Glens 3 Jul 2026
LA01/2026/0707/F 3 Jul 2026 Consultation Open

10 Knox Park, Portrush

Renovation of existing house, adding new windows to the first floor for two bedrooms and a bathroom and alteration of existing openings downstairs

Full Causeway And Glens 3 Jul 2026
LA05/2026/0571/F 3 Jul 2026 Valid

37 Fairfields Manor, Magheralave, Lisburn, BT28 3WA

Attic conversion with new rear flat roof dormer

Full Lisburn And Castlereagh 3 Jul 2026
LA09/2026/0694/F 3 Jul 2026 Awaiting decision

21 Clover Hill Moy

The proposed works are to add a 10.4 sq/m extension to the kitchen and provide a 10.6 sq/m outside office extension to the garage, along with net zero...

Full Mid Ulster 3 Jul 2026
LA09/2026/0696/F 3 Jul 2026 Awaiting decision

1 Hillcrest Aughnacloy BT69 6BH

Extension to dwelling including proposed vehicular entrance

Full Mid Ulster 3 Jul 2026
LA10/2026/0642/F 3 Jul 2026 Consultation Open

9 Boolawater Road, Boolawater, Kesh, Fermanagh, BT93 8AW

Proposed rear extension

Full Fermanagh And Omagh 3 Jul 2026
LA04/2026/1209/F 2 Jul 2026 Consultation Open

2 The Vines, Belfast, BT10 0GP

Single-storey rear extension along with reinstatement of car port to side of dwelling and garage.

Full Belfast 2 Jul 2026
LA05/2026/0559/F 2 Jul 2026 Valid

48 Pond Park Road, Lisburn, BT28 3LB

Single storey rear extension to dwelling

Full Lisburn And Castlereagh 2 Jul 2026
LA05/2026/0561/F 2 Jul 2026 Valid

11 School Road, Newtownbreda, Belfast, BT8 6BT

4no. Townhouses under approval LA05/2015/0089/F amended to include the addition of a rear dormer to form an additional bedroom, minor internal amendme...

Full Lisburn And Castlereagh 2 Jul 2026
LA06/2026/0608/F 2 Jul 2026 Consultation Open

Shelleven House, 61 Princetown Road, Bangor, BT20 3TA

Change of use and extension of guesthouse to form 1no. dwelling house and 4no. apartments, with associated ancillary works & demolition.

Full Ards And North Down 2 Jul 2026
LA07/2026/0790/F 2 Jul 2026 Valid

Between 22 and 24 Glen Road, Newry, BT34 1SP

Proposed infill dwelling and garage

Full Newry Mourne Down 2 Jul 2026
LA09/2026/0688/F 2 Jul 2026 Awaiting decision

90M South East of 43 Rocktown Road Bellaghy

Dwelling and garage - Infill

Full Mid Ulster 2 Jul 2026
LA01/2026/0697/RM 1 Jul 2026 Valid

Site adjacent to 4 Village Oaks, Ballykelly

Construction of single storey garage dwelling and single garage

Reserved Matters Causeway And Glens 1 Jul 2026
LA02/2026/0507/F 1 Jul 2026 Consultation Open

27 THE MOORLANDS TAYLORSTOWN ANTRIM BT41 3RN

TWO STOREY SIDE AND SINGLE STOREY FRONT EXTENSIONS TO DWELLING WITH ERECTION OF DOUBLE GARAGE WITH FIRST FLOOR GYM TOGETHER WITH INCREASE IN SITE CURT...

Full Mid East Antrim 1 Jul 2026
LA04/2026/1193/F 1 Jul 2026 Consultation Open

53 Malone Park, Belfast, BT9 6NN

Demolition of the existing single-storey rear extension and construction of a single-storey rear extension, new patio doors to rear elevation, new rea...

Full Belfast 1 Jul 2026
LA04/2026/1197/LBC 1 Jul 2026 Consultation Open

53 Malone Park, Belfast, BT9 6NN

Demolition of the existing single-storey rear extension and construction of a single-storey rear extension, new patio doors to rear elevation, new rea...

Listed Building Consent Belfast 1 Jul 2026
LA04/2026/1198/DCA 1 Jul 2026 Consultation Open

7 Deramore Park South, Malone Upper, Belfast, BT9 5JY

Demolition of existing single storey garage along the east boundary, partial demolition to gable wall for new window opening, demolition and replaceme...

Conservation Area Consent Belfast 1 Jul 2026
LA05/2026/0555/F 1 Jul 2026 Valid

7 Longstone Avenue, Belfast, BT16 2DX

Ground floor shower room and ramped access

Full Lisburn And Castlereagh 1 Jul 2026
LA07/2026/0787/F 1 Jul 2026 Valid

Autozone Car Parts Ltd 11 Cloonagh Road, Downpatrick, BT30 6LJ

Extension to existing shop & storage unit

Full Newry Mourne Down 1 Jul 2026
LA08/2026/0730/LBC 1 Jul 2026 Valid

Gate House: St Luke's Hospital Loughgall Road, Armagh, BT61 7NQ

Conversion of the current Gate House to St Luke’s Hospital into supported living accommodation + small kitchen extension to the rear (to replace kitch...

Listed Building Consent Armagh Banbridge Craigavon 1 Jul 2026
LA09/2026/0686/NMC 1 Jul 2026 Awaiting decision

1 Curran Terrace Dungannon BT71 6LD

Change the approve pitched roof of the extension to a flat roof

Non Material Change Mid Ulster 1 Jul 2026
LA09/2026/0687/F 1 Jul 2026 Awaiting decision

St Marys Primary School 5 Cavanakeeran Rd Pomeroy

Construction of new accessible lift and enclosing structure to rear of existing school building .

Full Mid Ulster 1 Jul 2026
LA10/2026/0637/F 1 Jul 2026 Consultation Open

33 Creagh Road, Tempo Co. Fermanagh, BT94 3FW

Proposed extension to existing dwelling, including raising the roof level over the existing living room to create additional accommodation with a new ...

Full Fermanagh And Omagh 1 Jul 2026
LA01/2026/0695/F 30 Jun 2026 Consultation Open

5m South of 1 Main Street, Cushendun

Proposed height restriction barrier and associated bollards to the existing laneway providing access to the car park.

Full Causeway And Glens 30 Jun 2026
LA01/2026/0712/F 30 Jun 2026 Consultation Open

32 Main Street, Castlerock

Proposed single storey rear extension. Includes internal alterations, removal of the front porch and existing garage and the addition of a garden room...

Full Causeway And Glens 30 Jun 2026
LA01/2026/0720/F 30 Jun 2026 Valid

100m East of Glenmona Lodge, 10 Glendun Road, Cushendun

Proposed vehicle height restriction barriers, associated walling, pedestrian access openings and visibility improvements within the existing car park.

Full Causeway And Glens 30 Jun 2026
LA03/2026/0460/F 30 Jun 2026 Valid

23 Sherwood Avenue, Newtownabbey, BT36 5GF

Alteration and extension to dwelling

Full Antrim And Newtownabbey 30 Jun 2026
LA04/2026/1188/DCA 30 Jun 2026 Valid

69 Osborne Park, Belfast, BT9 6JP

4 no. new openings formed on ground floor with 4no. existing openings built up. 4no. new openings formed at first floor with 2no. existing openings bu...

Conservation Area Consent Belfast 30 Jun 2026
LA04/2026/1189/DCA 30 Jun 2026 Consultation Open

91 University Road, Belfast, BT7 1NG

Removal of entrance canopy, entrance door and glazing.

Conservation Area Consent Belfast 30 Jun 2026
LA05/2026/0566/F 30 Jun 2026 Valid

30 Quarterlands Road, Dunmurry, Lisburn, BT27 5TN

The proposed conversion, extension and reuse of two existing vernacular buildings and associated works.

Full Lisburn And Castlereagh 30 Jun 2026
LA06/2026/0599/F 30 Jun 2026 Valid

1 Fourth Street Rivenwood, Newtownards, BT23 8AJ

Two storey rear extension

Full Ards And North Down 30 Jun 2026
LA07/2026/0783/F 30 Jun 2026 Valid

72 Strangford Road, Downpatrick, BT30 7SP

Extension to dwelling

Full Newry Mourne Down 30 Jun 2026
LA07/2026/0784/LBC 30 Jun 2026 Valid

20 Victoria Square, Rostrevor Newry, BT34 3EU

Extension and alterations to dwelling & installation of an Electric Vehicle (EV) charging point

Listed Building Consent Newry Mourne Down 30 Jun 2026
LA10/2026/0633/F 30 Jun 2026 Consultation Open

36 Bracken Vale, Omagh, BT78 5RS

Proposed rear extension to dwelling

Full Fermanagh And Omagh 30 Jun 2026
LA01/2026/0693/F 29 Jun 2026 Consultation Open

Millburn Primary School 2 Greenaway Drive, Coleraine

Provision of single storey extension to provide specialist educational accommodation

Full Causeway And Glens 29 Jun 2026
LA01/2026/0694/F 29 Jun 2026 Consultation Open

3 Dalriada Gardens, Cushendall, Ballymena

Proposed single storey rear extension to existing dwelling, and creation of new patio area with associated landscaping

Full Causeway And Glens 29 Jun 2026
LA02/2026/0501/F 29 Jun 2026 Consultation Open

8 CENTURIPE AVENUE TOWN PARKS BALLYMENA BT43 7AY

Single storey rear extension to provide accessible shower room for person with disabilities

Full Mid East Antrim 29 Jun 2026
LA05/2026/0542/F 29 Jun 2026 Valid

The Manor House 86a Beechill Road, Belfast, BT8 7QN

Proposed single storey garden room and gym, on footprint of now demolished residential garage (with previous extension approval under application LA05...

Full Lisburn And Castlereagh 29 Jun 2026
LA05/2026/0543/F 29 Jun 2026 Consultation Open

13 Beechill Park North, Belfast, BT8 6NZ

Single storey side and rear extension with internal alterations. Porch to front of dwelling.

Full Lisburn And Castlereagh 29 Jun 2026
LA05/2026/0545/F 29 Jun 2026 Valid

36 Edentrillick Road, Hillsborough, BT26 6PG

Proposed two storey side and rear extension with internal alterations to dwelling.

Full Lisburn And Castlereagh 29 Jun 2026
LA05/2026/0552/F 29 Jun 2026 Valid

46 Bests Hill, Belfast, BT8 7WH

Single storey rear extension to provide accessible living accommodation for persons with disabilities

Full Lisburn And Castlereagh 29 Jun 2026
LA06/2026/0588/F 29 Jun 2026 Consultation Open

57 Demesne Road, Holywood, BT18 9EX

First-floor glazed rear extension

Full Ards And North Down 29 Jun 2026
LA06/2026/0592/F 29 Jun 2026 Consultation Open

3 New Harbour Road, Portavogie, BT22 1EE

Increase in height of front wall and entrance pillars (retrospective).

Full Ards And North Down 29 Jun 2026
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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 — taller, larger, 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 with objections) can take longer.
Can I get email alerts for extensions planning applications anywhere in Northern Ireland?
Yes. Click the "Set up alerts" button on this page and you'll get a daily (or weekly) email listing every new extensions application submitted anywhere in Northern Ireland. No need to pick a postcode or draw a map — pick the category once, choose your frequency, and we'll do the rest.

Extensions planning applications elsewhere

Data updated daily across Northern Ireland's active councils.