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Planning permission in Newcastle

Planning permission in Newcastle is decided by South Dublin County Council. Search Newcastle planning applications, see recent decisions and notices, and check how often projects are granted. Here is how planning applications have gone in Newcastle over the last 5 years.

Granted in Newcastle

107 granted, 9 refused in the last 5 years. That is 2 points above the South Dublin average.

Applications
129

Received in the last 5 years

Decided
116

Granted or refused

Typical wait
8weeks

Without a request for more information

More info asked
34%

Of decided applications

Recent planning decisions in Newcastle

The latest granted and refused applications decided by South Dublin County Council. Wording is trimmed and never includes applicant names.

Granted
Construction of a first floor extension to the side of the existing house;
Teach Nua, Athgoe North, Newcastle, Co. Dublin, D22 DH90, reference SD26B/0380W
14 Oct 2026
Granted
Attic conversion for habitable use incorporating three rooflights to the front roof slope and three windows to the side gable;
2 Graydon Crescent, Newcastle, Co. Dublin, D22F8Y6, reference SD26B/0323W
7 Oct 2026
Granted
Attic conversion for habitable use incorporating one rooflight to the front roof slope and three roof windows to the side roof slopes (one to one...
30 Graydon Rd, Newcastle, Dublin, D22K4X7, reference SD26B/0333W
8 Sept 2026
Granted
The installation of new corporate signage, one externally mounted sign measuring approximately 5.72m x 1.20m fixed to the principal (south)...
Unit F1, Grants Lane Road, Greenogue Business Park, reference SD26A/0135W
4 Aug 2026
Granted
Permission for a dormer roof extension over existing one storey house, with a dormer extension to the side and rear of the existing one storey house.
SeaBur, Highdown Hill, Newcastle, Co. Dublin, reference SD26B/0259W
21 Jul 2026
Granted
Planning permission for a new single storey extension, comprising toilet, sitting room, gym and storage, to side and rear of the existing house...
15A, Ballynakelly Cottages, Ballynakelly, Newcastle, Dublin 22, D22 RT72, reference SD25B/0703W
20 May 2026
Granted
1,444 sq m of factory warehouse space including a link building to an existing adjacent warehouse, 486 sq m of ancillary office space, 21 new car...
Site 6088, Jordanstown Road, Greenogue Business Park, Greenogue, Dublin 24, reference SD25A/0311W
14 May 2026
Granted
The development will consist of the construction of a part one-storey and part two-storey, four-bedroom dwelling house (235m2);
Highdown Hill, Newcastle, County Dublin, reference SD26A/0055W
27 Apr 2026

Newcastle planning applications per year

Applications received each year. The coloured part of each bar is the share granted. The outlined bar is the year so far.

Newcastle approval rates by project type

How often each kind of project was granted in Newcastle over the last 5 years. Types with fewer than 15 decisions are left out.

House extension31 decided
100%
Attic conversion16 decided
100%

Other places in South Dublin

Planning a project in Newcastle?

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Common questions about Newcastle planning

Do I need planning permission in Newcastle?

The rules are national, so the same exemptions apply in Newcastle as everywhere else. Many small projects, such as some single-storey rear extensions, are exempt under S.I. 600/2001. South Dublin County Council decides applications here, and a site in a protected area or a protected structure has fewer exemptions.

Who decides planning applications in Newcastle?

South Dublin County Council is the planning authority for Newcastle. It must decide within eight weeks of a valid application, unless it asks for further information.

How many planning applications are granted in Newcastle?

92 in 100 decided applications in Newcastle were granted over the last 5 years, from 116 decisions.

Source: National Planning Application Database and council planning registers, licensed under CC BY 4.0. Data is a guide and may be out of date, so check with the council. Applicant names are never published.