House extensions in Newry Mourne Down

Newry Mourne Down received 300 householder applications in the last 12 months - about 6 a week. Garage works and rear extensions are the most common. All 24 decided so far 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 110 applications
Yesterday Valid LA07/2026/1014/F

53 Lisdoonan Road, Saintfield, Ballynahinch, BT24 7HL

Two-storey side extension to dwelling with internal alterations

Full Newry Mourne Down
Yesterday Valid LA07/2026/1027/LBC

51 Church Street, Rostrevor Newry, BT34 3BB

Proposed change of use from Convent Hall to multipurpose hall on the ground floor, alterations to rear annex and provision of two apartments on the fi...

Listed Building Consent Newry Mourne Down
2 days ago Valid LA07/2026/0982/F

23 Foughillotra Road, Newry, BT35 8JF

Proposed erection of single storey rear extension to dwelling, attic conversion with three dormer windows on rear elevation.

Full Newry Mourne Down
2 days ago Valid LA07/2026/1020/F

Lands approximately 73m NW of No.22 Seafields, Warrenpoint (Plot 17 under approved application LA07/2021/2056/F)

Change of House Type for Plot 17 approved under LA07/2021/2056/F

Full Newry Mourne Down
2 days ago Valid LA07/2026/1048/F

2 The Valley Mullaghbawn Newry BT35 9ST

Side & Rear Extension with roofspace conversion

Full Newry Mourne Down
2 days ago Valid LA07/2026/1070/F

St Patricks Primary School 16 St Patricks Road, Downpatrick, BT30 7JG

2no. single storey extensions to the main school building with 18no. additional parking spaces provided including amendments to existing and proposed ...

Full Newry Mourne Down
2 days ago Valid LA07/2026/1065/F

1 Greenan Vale, Newry, BT34 2BH

Extension & alterations to dwelling

Full Newry Mourne Down
8 Sept 2026 Valid LA07/2026/1000/F

35 Mourne Park, Castlewellan, BT31 9BZ

Infill rear extension

Full Newry Mourne Down
8 Sept 2026 Valid LA07/2026/1001/F

22 Ulster Avenue, Annalong, Newry, BT34 4TX

Demolition of existing rear extension and erection of new extension

Full Newry Mourne Down
8 Sept 2026 Valid LA07/2026/1044/F

2 College Green, Kilkeel, Newry, BT34 4HE

Retention of domestic garage

Full Newry Mourne Down
8 Sept 2026 Valid LA07/2026/1046/F

73 Kilmorey Street, Newry, BT34 2DH

Rear extension to existing public bar to provide new licensed pool hall

Full Newry Mourne Down
8 Sept 2026 Valid LA07/2026/1045/F

18 Malone Way, Downpatrick BT30 9UJ

Rear extension

Full Newry Mourne Down
8 Sept 2026 Valid LA07/2026/1055/F

82 Chestnut Grove, Newry, BT34 1JL

Extension & Alterations to Dwelling and Conversion of attached Garage to Bedroom.

Full Newry Mourne Down
8 Sept 2026 Valid LA07/2026/1054/F

232 Kilkeel Road, Annalong, BT34 4TW

Extension to dwelling

Full Newry Mourne Down
4 Sept 2026 Valid LA07/2026/0961/F

4 Ballycloughan Road, Saintfield, BT24 7HW

Extension to dwelling

Full Newry Mourne Down
4 Sept 2026 Valid LA07/2026/1032/F

86 Lismore, Crossmaglen, Newry, BT35 9ET

Rear extension

Full Newry Mourne Down
3 Sept 2026 Valid LA07/2026/1019/F

2 Mill Road, Mullaghbawn, BT35 9TZ

Extension and alterations to dwelling to provide granny annex

Full Newry Mourne Down
3 Sept 2026 Valid LA07/2026/1021/F

2 Upper Kiln Street, Newry, BT35 8TT

Extension to dwelling and boundary wall to replace existing fence

Full Newry Mourne Down
3 Sept 2026 Valid LA07/2026/1036/O

Approx 20m South of 62 Drumaghlis Road, Crossgar, Downpatrick, BT30 9JS

Replacement Dwelling & Garage

Outline Newry Mourne Down
3 Sept 2026 Valid LA07/2026/1037/F

24 Ballydonnell Road, Glovet, Downpatrick, BT30 8EP

Granny Annex

Full Newry Mourne Down
2 Sept 2026 Valid LA07/2026/1008/F

11 Kilfeaghan Road, Rostrevor, Newry, BT34 3AW

Replacement dwelling and new domestic garage

Full Newry Mourne Down
1 Sept 2026 Valid LA07/2026/1031/F

5c Cully Road, Silverbridge, Newry, BT35 9LP

Change of house type and detached garage from dwelling previously approved under P/2007/0081/RM

Full Newry Mourne Down
1 Sept 2026 Valid LA07/2026/1010/F

4 Mary Street, Rostrevor, Newry, BT34 3AY

Refurbishment and alterations to lower ground floor to provide additional guest accommodation and minor alteration to existing front conservatory proj...

Full Newry Mourne Down
1 Sept 2026 Valid LA07/2026/1009/LBC

4 Mary Street, Newry, BT34 3AY

Refurbishment and alterations to lower ground floor to provide additional guest accommodation and minor alteration to existing (non original) front co...

Listed Building Consent Newry Mourne Down
27 Aug 2026 Valid LA07/2026/0995/F

12a Camlough Road, Newry, BT35 6JP

Retention of alterations to existing detached garage to provide living accommodation ancillary to the existing dwelling

Full Newry Mourne Down
27 Aug 2026 Valid LA07/2026/1015/LBC

3 Hillside, Ballynahinch, BT24 8SA

Removal of internal walls, existing staircase and installation of supporting steel beams and new staircase.

Listed Building Consent Newry Mourne Down
26 Aug 2026 Valid LA07/2026/0978/O

Between 37 & 39 Scaddy Road, Killyleagh, BT30 9BP

Infill dwelling and domestic garage

Outline Newry Mourne Down
26 Aug 2026 Valid LA07/2026/1006/F

5a Forest Road, Forkhill, Newry, BT35 9SA

Retention of existing garden room and gym

Full Newry Mourne Down
25 Aug 2026 Valid LA07/2026/0921/F

Site 50m west of No.22 Kirkland Road, Toye, Downpatrick BT30 9PQ

Off site replacement dwelling with detached garage

Full Newry Mourne Down
25 Aug 2026 Valid LA07/2026/0980/F

16 Gantry Glen Newry (Approved as Plot 8 on LA07/2021/1089/F)

Retention of garden room

Full Newry Mourne Down
25 Aug 2026 Valid LA07/2026/0997/F

Mitchel Memorial Hall 2a John Mitchel Place, Newry, BT34 2DG

Change of use of former social club to offices with alterations to include: New shopfront at ground floor level; Replacement windows at first floor le...

Full Newry Mourne Down
25 Aug 2026 Valid LA07/2026/0999/F

16 St. Colmans Gardens, Newry, BT34 3EF

Demolition of domestic attached garage and construction of extension to rear of dwelling

Full Newry Mourne Down
24 Aug 2026 Valid LA07/2026/0998/F

9 Neills Lane, Downpatrick, BT30 9LP

Extension to dwelling & associated site works

Full Newry Mourne Down
21 Aug 2026 Valid LA07/2026/0907/O

270m WNW of 21 Castlewellan Road Clough Downpatrick BT30 8RD

A single storey modular/ log cabin

Outline Newry Mourne Down
21 Aug 2026 Valid LA07/2026/0918/F

Lands at and circa 60m south west of 64 Drumintee Road, Killeavy, Newry, BT35 8SJ

Offsite replacement dwelling (retention of host dwelling as domestic store), annex,driveway/parking, package treatment plant, landscaping and ancillar...

Full Newry Mourne Down
21 Aug 2026 Valid LA07/2026/0967/F

28A Newtown Road, Rostrevor, Newry

Extension to existing dwelling

Full Newry Mourne Down
21 Aug 2026 Valid LA07/2026/0968/F

26 Seaview Avenue, Kilkeel, BT34 4JG

Single storey extension to rear of dwelling.

Full Newry Mourne Down
21 Aug 2026 Valid LA07/2026/0969/F

18 Lisoid Road, Downpatrick, BT30 8LP

Proposed demolition of existing sun-lounge and erection of single storey extension to rear of dwelling and detached double garage

Full Newry Mourne Down
21 Aug 2026 Valid LA07/2026/0979/F

Immediately NW of 27a, Leestone Road, Kilkeel, Newry, BT34 4NW

Change of House Type for LA07/2024/1424/Fand Domestic Garage

Full Newry Mourne Down
20 Aug 2026 Consultation Open LA07/2026/0988/F

2 Warrenpoint Road, Newry, BT34 2PF

Change of use of former day care centre (Class D1) to 50 bedroom nursing home (Class C3) at 2 Warrenpoint Road, Newry. This includes proposed extensi...

Full Newry Mourne Down
20 Aug 2026 Valid LA07/2026/0938/F

17 Hillcrest Drive, Ballynahinch, BT24 8HE

Rear extension

Full Newry Mourne Down
20 Aug 2026 Valid LA07/2026/0958/F

4 Cullyhanna Road, Newry, BT35 0JB

Proposed granny flat extension and porch extension to existing dwelling.

Full Newry Mourne Down
20 Aug 2026 Valid LA07/2026/0993/F

3 Woodvale, Bessbrook, Newry, BT35 7FD

Extension to dwelling

Full Newry Mourne Down
19 Aug 2026 Valid LA07/2026/0963/F

Lands 50M NE of 90 Strangford Road , Sheepland More , Ardglass, Downpatrick. BT30 7SS

Paired vehicular access to approved dwelling & garage under construction at 92 Strangford Road

Full Newry Mourne Down
19 Aug 2026 Valid LA07/2026/0964/RM

Lands 110m W of 44 Rostrevor Road Warrenpoint BT34 3RU

Dwelling & detached garage

Reserved Matters Newry Mourne Down
18 Aug 2026 Valid LA07/2026/0949/F

16 Mourne Rise, Newcastle, BT33 0HE

Extension & alterations to include replacing existing conservatory, accessible side extension with ramped access & front entrance porch

Full Newry Mourne Down
17 Aug 2026 Valid LA07/2026/0950/F

6 Carrigagh Road, Dromore, BT25 2DD

Detached double garage with garden room, car port, new front boundary wall and entrance gates

Full Newry Mourne Down
17 Aug 2026 Valid LA07/2026/0957/F

16 Freeduff Road, Cullyhanna, BT35 0JJ

Extension to dwelling

Full Newry Mourne Down
13 Aug 2026 Valid LA07/2026/0880/F

85 Dundrum Road, Newcastle, BT33 0LN

Proposed front porch single storey extension, rear link single storey extension, remodelling of existing rear out building, window alterations to side...

Full Newry Mourne Down
13 Aug 2026 Valid LA07/2026/0939/RM

25m NW of No.4 Glenloughan Road Kilkeel Newry BT34 4SR

Infill Dwelling and Detached Domestic Garage/Games Room

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

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