House extensions in Newry Mourne Down

Newry Mourne Down received 193 householder applications in the last 12 months - about 4 a week. Garage works and side extensions are the most common. All 10 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.

107 last 90 days
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32 last 30 days
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12 last 14 days

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Showing 50 of 107 applications
LA07/2026/0811/F 8 Jul 2026 Valid

42 Magheralone Road, Ballynahinch, BT24 8ND

Proposed extension to existing property to form new entrance and living area

Full Newry Mourne Down 8 Jul 2026
LA07/2026/0810/F 8 Jul 2026 Valid

22 Orchard Hill, Warrenpoint, BT34 3BF

Extension to dwelling

Full Newry Mourne Down 8 Jul 2026
LA07/2026/0803/F 7 Jul 2026 Valid

53 South Promenade, Newcastle, BT33 0EY

Front bay extension, small balcony & retrospective rear extension and new single domestic garage.

Full Newry Mourne Down 7 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
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
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
LA07/2026/0772/F 29 Jun 2026 Consultation Open

St Marys Primary School, 17 Maphoner Road Newry BT35 9TP

Extension and refurbishment for provision of specialist educational needs with associated site works

Full Newry Mourne Down 29 Jun 2026
LA07/2026/0770/F 29 Jun 2026 Valid

31 Cuttyshane Road, Downpatrick, BT30 9EX

Extension to existing garage to provide 'ancillary' games room, craft room and guest bedroom

Full Newry Mourne Down 29 Jun 2026
LA07/2026/0776/F 29 Jun 2026 Valid

44 Carrickdesland, Warrenpoint, Newry, BT34 3WJ

Extension to dwelling

Full Newry Mourne Down 29 Jun 2026
LA07/2026/0775/F 29 Jun 2026 Valid

16 Park Lane, Downpatrick, BT30 6GH

Two storey side extension to existing dwelling with associated alterations and site works.

Full Newry Mourne Down 29 Jun 2026
LA07/2026/0764/F 28 Jun 2026 Valid

15m east of 12 Rossglass Road, Killough, BT307QN

Demolition of existing outbuilding and replacement 2 storey dwelling and alterations of existing vehicular entrance (Renewal of LA07/2020/1488/F)

Full Newry Mourne Down 28 Jun 2026
LA07/2026/0758/F 26 Jun 2026 Valid

Lands approximately 40m north of No.17 Carrogs Lane, Burren, Warrenpoint

Dwelling & detached garage with associated site works

Full Newry Mourne Down 26 Jun 2026
LA07/2026/0755/F 25 Jun 2026 Valid

42 Moyra Drive, Saintfield Parks, Saintfield, Co. Down BT24 7AF

New roof and walls to existing rear extension

Full Newry Mourne Down 25 Jun 2026
LA07/2026/0752/F 24 Jun 2026 Valid

30 Castlewellan Road, Newcastle, BT33 0JY

Extension and alterations to dwelling

Full Newry Mourne Down 24 Jun 2026
LA07/2026/0754/F 24 Jun 2026 Valid

1 Dundrinne Rise, Castlewellan, BT31 9LY

Retrospective application for garage within curtilage of dwelling

Full Newry Mourne Down 24 Jun 2026
LA07/2026/0751/F 23 Jun 2026 Valid

124 Ballylone Road, Saintfield, BT24 7NA

Proposed two storey rear extension and replacement front porch.

Full Newry Mourne Down 23 Jun 2026
LA07/2026/0742/F 22 Jun 2026 Valid

24a Derrywilligan Road Newry BT35 6JU

Lean to extension to create additional storage at existing storage and distribution yard/building (Retrospective)

Full Newry Mourne Down 22 Jun 2026
LA07/2026/0733/F 19 Jun 2026 Valid

Killeavy G A C 49a Forkhill Road, Cloghoge, Newry, BT35 8QX

First floor extension to Killeavy Youth Club to accommodate a new gym facility with additional internal alterations

Full Newry Mourne Down 19 Jun 2026
LA07/2026/0740/F 19 Jun 2026 Valid

8 Annsfield Park, Downpatrick, BT30 9PS

Rear & Side extension

Full Newry Mourne Down 19 Jun 2026
LA07/2026/0738/F 19 Jun 2026 Valid

2 Chestnutt Meadows, Ballynahinch, BT24 8TA

Internal refurbishment with minor changes to fenestration to existing dwelling.

Full Newry Mourne Down 19 Jun 2026
LA07/2026/0735/F 19 Jun 2026 Valid

120 Ballylone Road, Ballynahinch, BT24 7NA

Refurbishment of existing dwelling with internal reconfiguration and addition of new porch and rear dormers

Full Newry Mourne Down 19 Jun 2026
LA07/2026/0734/F 19 Jun 2026 Valid

4 Elmwood Park, Newry, BT34 1LB

Demolition of existing garage and erection of extension to dwelling

Full Newry Mourne Down 19 Jun 2026
LA07/2026/0714/F 15 Jun 2026 Valid

12 Greendale Crescent, Rostrevor, Newry, BT34 3HF

Extension To Dwelling

Full Newry Mourne Down 15 Jun 2026
LA07/2026/0706/F 12 Jun 2026 Valid

11 D Grants Road, Jonesborough, Newry, BT35 8JG

Extension and alterations to dwelling

Full Newry Mourne Down 12 Jun 2026
LA07/2026/0713/F 12 Jun 2026 Valid

38 The Ferns, Hilltown Newry, BT34 5WE

Extension & Retention of existing rear sunroom

Full Newry Mourne Down 12 Jun 2026
LA07/2026/0703/F 12 Jun 2026 Valid

39 Ringhaddy Road, Islandbane, Killinchy, BT23 6TU

Retrospective change of house type from dwelling approved under LA07/2020/0814/F

Full Newry Mourne Down 12 Jun 2026
LA07/2026/0710/F 12 Jun 2026 Valid

14b Carrivekeeney Road, Newry, BT35 7LU

Extension to dwelling

Full Newry Mourne Down 12 Jun 2026
LA07/2026/0702/F 11 Jun 2026 Valid

10 Glenvale Crescent, Newry, BT35 8BX

Extension and internal alterations

Full Newry Mourne Down 11 Jun 2026
LA07/2026/0695/F 10 Jun 2026 Valid

On the lands approx 75m northeast of 18 McCartans Road, Castlewellan, BT31 9BE

Replacement dwelling and garage, with associated site works, including the retention and refurbishment of existing stone buildings for ancillary stora...

Full Newry Mourne Down 10 Jun 2026
LA07/2026/0694/F 10 Jun 2026 Valid

8 Marcus Square, Newry, BT34 1AY

External alterations, repairs and refurbishment of existing building and creation of additional storey for storage associated with the ground floor co...

Full Newry Mourne Down 10 Jun 2026
LA07/2026/0687/F 9 Jun 2026 Consultation Open

46 Newry Road, Camlough, Newry, BT35 7JP

Rear and side extension for granny annex

Full Newry Mourne Down 9 Jun 2026
LA07/2026/0678/F 9 Jun 2026 Valid

9b Well Road, Newry, BT34 3RS

Granny flat to north boundary of the site and to be ancillary to the existing dwelling.

Full Newry Mourne Down 9 Jun 2026
LA07/2026/0688/F 9 Jun 2026 Valid

7a Cargagh Road, Downpatrick, BT30 9AG

Retrospective application for extension to garage to form domestic store

Full Newry Mourne Down 9 Jun 2026
LA07/2026/0675/F 8 Jun 2026 Site Inspection Complete

4 Shimna Vale, Ballaghbeg, Newcastle, BT33 0EG

Retention of rear extension to dwelling as built with proposed amendments (amended description)

Full Newry Mourne Down 8 Jun 2026
LA07/2026/0677/F 8 Jun 2026 Valid

Between 52 & 52A Mill Rd, Mullaghbawn, Newry, BT35 9TZ

Proposed change of house type and detached garage with associated siteworks, to that approved under planning ref. no. LA07/2024/1087/RM.

Full Newry Mourne Down 8 Jun 2026
LA07/2026/0676/F 8 Jun 2026 Valid

80 Teconnaught Road, Downpatrick, BT30 9HH

Conversion of garage to living space, detached garage store building

Full Newry Mourne Down 8 Jun 2026
LA07/2026/0671/F 7 Jun 2026 Valid

18 Outleckan Road, Belleek, Newry, BT35 7QU

Alteration and extension to dwelling

Full Newry Mourne Down 7 Jun 2026
LA07/2026/0668/F 5 Jun 2026 Valid

55m South West of 22A Cottage Road, Newry, BT35 8RS

Dwelling and garage

Full Newry Mourne Down 5 Jun 2026
LA07/2026/0662/F 4 Jun 2026 Consultation Open

19 Tamnaghbane Road, Killeavy, Newry, BT35 8RF

Detached domestic garage.

Full Newry Mourne Down 4 Jun 2026
LA07/2026/0651/F 3 Jun 2026 Valid

19 Castle Park, Ardglass, BT30 7UD

Conversion of garage to granny annex

Full Newry Mourne Down 3 Jun 2026
LA07/2026/0648/F 1 Jun 2026 Valid

74a Lisoid Road, Downpatrick, BT30 8AX

Shed for storage

Full Newry Mourne Down 1 Jun 2026
LA07/2026/0643/F 30 May 2026 Valid

41 Hilltown Road, Newry, BT34 2HJ

Change of use from a single dwelling to a house in multiple occupation

Full Newry Mourne Down 30 May 2026
LA07/2026/0632/F 29 May 2026 Consultation Open

9 Fearons Terrace, Bessbrook, Newry, BT35 7ED

Extension to Dwelling

Full Newry Mourne Down 29 May 2026
LA07/2026/0638/F 29 May 2026 Valid

48 Drumee Road, Castlewellan, BT31 9HQ

Extension to Dwelling

Full Newry Mourne Down 29 May 2026
LA07/2026/0640/F 29 May 2026 Valid

16A Dromantine Road, Newry, BT34 1TD

Extension and remodelling of detached garage to granny flat

Full Newry Mourne Down 29 May 2026
LA07/2026/0644/F 29 May 2026 Valid

2 Bavan Road, Mayobridge, Newry, BT34 2EP

Extension and alterations to Public House to include demolition of out building, remodeling of public bar, new toilets and the provision of eight numb...

Full Newry Mourne Down 29 May 2026
LA07/2026/0641/F 29 May 2026 Valid

1-3 Main Street, Dundrum, Newcastle, BT33 0LU

Change of use of existing office building, internal alterations and rear porch extension to provide 2No Apartments. Change of use of existing store bu...

Full Newry Mourne Down 29 May 2026
LA07/2026/0635/F 29 May 2026 Consultation Open

23 Chancellors Road, Newry, BT35 8PR

Roofspace expansion, remodelling and refurbishment to existing detached single storey house and new rear garden room to replace garden store.

Full Newry Mourne Down 29 May 2026
LA07/2026/0631/F 29 May 2026 Valid

6 Castleglen, Newcastle BT33 0RH

Retrospective replacement of existing ancillary building with 2no ancillary buildings on concrete bases, together with associated boundary treatments,...

Full Newry Mourne Down 29 May 2026
Recency
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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 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.