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Planning in Ireland

South Dublin planning applications

Search the latest year of South Dublin County Council planning applications by location, reference, development, applicant or status.

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28 planning applications match the selected filters.

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SD26B/0344

24 Jul 2026

Status: Valid

Demolition of portions of the existing rear and side external walls at ground floor level and the rear wall of the first floor; Demolition of the existing garage roof and the existing rear utility room, and the construction of (a) A single storey extension to the rear and side of the existing dwelling; (b) The partial conversion of the existing garage to habitable accommodation; (c) A first floor extension to the rear of dwelling, including the extension of the existing roof over the proposed first floor extension; (d) The widening of the existing vehicular entrance; and (e) Associated external works, including a new front entrance, entrance steps, planter, landscaping and all ancillary site development works.

South Dublin County Council

66, Knockcullen Drive, Knocklyon, Dublin, D16 K0H2

Application type: Permission
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SD26B/0309W

22 Jun 2026

Status: 35 Day Assessment

Construction of a 32sq.m ground floor flat roof extension to the rear, providing a new utility room, extended kitchen and dining room with no.1 new rooflight; Attic conversion to the rear extending the property to two storeys to include two additional bedrooms, office space, shower room and en-suite; Two roof lights to the north facing front elevation; External insulation with brick finish to the front, side and rear facades; Ancillary site works as required to facilitate construction works.

South Dublin County Council

18 Idrone Park, Knocklyon, Dublin 16, D16 PX88

Application type: Permission
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SD17A/0364/FEP1

8 May 2026

Status: Decision

(a) Demolition of existing house 'Vista Montana'; (b) construction of 11 no. 3-storey houses consisting of 1 detached 5-bed and 10 semi-detached 4-bed units; (c) new access road with raised crossing at entrance off Firhouse Road; (d) provision of on-street parking and off-street parking; (e) connection to Local Authority and Irish Water storm, foul and water main systems, and all associated site works.

South Dublin County Council

Vista Montana, Firhouse Road, Knocklyon, Dublin 16.

Application type: Further Extension of Duration of PermissionDecision: Grant Further Ext. of Duration of Permission
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PT8SD359

5 Mar 2026

Status: Unregistered application

The proposed development is comprised of 29 homes and all associated open spaces and all site and development works necessary to facilitate the proposed development and will include: i. Construction of 8 No. three-storey, three-bedroom houses in two terraced buildings. ii. Construction of 4 No. two-bedroom apartments in a two-storey building. iii. Construction of a two and three-storey apartment building which will comprise: 1 No. studio apartment, 8 No. one-bedroom apartments, 4 No. two-bedroom apartments and 4 No. three-bedroom apartments. iv. New boundary treatment to adjoining properties and roads. Associated upgrading of roadways and paths, provision of car and cycle parking spaces. All hard and soft landscape works, lighting, boundary structures and all associated ancillary buildings, infrastructure to include a pumping station, and all site and development works necessary to facilitate the proposed development. The proposal has undergone Screening for Appropriate Assessment in accordance with Article 6(3) of the Habitats Directive (92/43/EEC) and Screening for Environmental Impact Assessment under the EIA Directive 2011/92/EU, as amended by Directive 2014/52/EU. In accordance with Article 81 of the Planning & Development Regulations 2001, as amended, the Planning Authority has made a determination and concluded that: (a) The proposed development, either individually or in combination with other plans and projects, is not likely to have a significant effect on any European site(s) and therefore a Stage 2 Appropriate Assessment is not required. (b) There is no real likelihood of significant effects on the environment arising from the proposed development and that the proposed development is not of a class set out under Schedule 5 of the Planning and Development Regulations 2001, as amended, and therefore does not require an Environmental Impact Assessment Report (EIAR). Any person may, within 4 weeks from the date of publication of this notice, apply to An Coimisiún Pleanála for a screening determination as to whether the development would be likely to have significant effects on the environment. The plans and particulars of the proposed development are available for inspection online on the council’s public consultation portal website (http://consult.sdublincoco.ie) during the period from 5th of March 2026 to 21st of April 2026. Printed plans and particulars of the proposed development are available for inspection or purchase at a fee not exceeding the reasonable cost of making a copy at County Hall, Tallaght, Dublin 24, during office hours from 5th of March 2026 to 7th of April 2026. Submissions: Submissions or observations with respect to the proposed development dealing with the proper planning and sustainable development of the area in which the proposed development will be situated may be made in writing up to 21st of April 2026 and may be submitted as follows; • On South Dublin County Council’s public consultation portal website http://consult.sdublincoco.ie, under Consultation by 11:59pm on 21st of April 2026. Or • In writing addressed to the Senior Executive Officer, Housing Directorate, South Dublin County Council, County Hall, Tallaght, Dublin 24, to be received on or before 5.00pm on 21st of April 2026. Submission should be labelled “29no. new homes at Castlefield Avenue, Knocklyon, Dublin 16” NOTE: Please make your submission by one medium only. Only submissions received by 21st of April 2026 and addressed as set out above will be considered. Submissions should state the name, address, and, where relevant, details of any organisation, community group or company etc. which you represent. Only submissions received as set out above will be considered. It should be noted that the Freedom of Information Act, 1997-2006 (as amended) applies to all records held by South Dublin County Council. The council’s personal data privacy statements can be viewed at www.sdcc.ie and all personal data will be retained in line with statutory requirements.

South Dublin County Council

Proposed Social and Affordable Mixed Tenure Housing Development, on SDCC land at Castlefield Avenue, Old Knocklyon Road, Dublin 16.

Application type: Application Under Part 8
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SD26B/0062W

13 Feb 2026

Status: Final Grant

Demolition of an existing single story glazed conservatory and store, construction of a new 2 storey extension and attic conversion to the rear providing an extended kitchen and dining room at ground floor, two additional bedrooms and bathroom at the new first floor level, a new roof light to the north facing roof, external insulation with render finish and all associated drainage works and site works as required.

South Dublin County Council

16 Idrone Park, Knocklyon, Dublin 16, D16PX29

Application type: PermissionDecision: Grant Permission
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PT8SD350

30 Jan 2026

Status: Unregistered application

Pursuant to the requirements of the above, South Dublin County Council hereby give notice toconstruct the following development in the Knocklyon to Ballyboden area of South Dublin, including Firhouse Road, Knocklyon Road (including Gaelscoil Chnoc Liamhna), Idrone Avenue (including St. Colmcille's Junior and Senior National Schools), Dargle Wood Park, Templeroan Road, Ballyboden Way, Boden Park, Ballyboden Road and Scholarstown Road: • Landscaping, tree planting, nature based Sustainable Drainage System • Traffic calming measures including reduced carriageway width and reduced corner radii and roundabout improvements • School zone improvements • High quality walking and cycling infrastructure, including segregated cycle lanes with kerb protection and new permeability links • New shelters at bus stops and new bus lanes on Ballyboden Way • Associated public lighting and other services. The proposal has undergone Appropriate Assessment Screening under the Habitats Directive (92/43/EEC) and screening for Environmental Impact Assessment under the EIA Directive 2011/92/EU, as amended by Directive 2014/52/EU. The authority has concluded that there is no real likelihood of significant effects on the environment arising from the proposed development and a determination has been made that an Environmental Impact Assessment Report (EIAR) is not required. The authority has also made a determination under Article 6(3) that the proposed development, either individually or in combination with other plans and projects, is not likely to have a significant effect on any European site(s). Any person may, within 4 weeks from the date of publication of this notice, apply to An Coimisiún Pleanála for a screening determination as to whether the development would be likely to have significant effects on the environment. Persons wishing to inspect drawings and particulars of the proposed development can do so as follows: ONLINE: Visit our Public Consultation Portal (http://consult.sdublincoco.ie) during the period 30th January 2026 to 13th March 2026 at 5pm. IN PERSON: Plans and particulars of the proposed development will be available for inspection or purchase at a fee not exceeding the reasonable cost of making a copy, at County Hall, Tallaght, Dublin 24 during office hours from 30th January 2026 to 27th February 2026. Submissions and observations with respect to the proposed development dealing with the proper planning and sustainable development of the area in which the proposed development will be situated, may be made in writing up to 5.00pm on 13th March 2026 and may be submitted Online: https://consult.sdublincoco.ie/en/consultation/knocklyon-ballybodenactive- and-sustainable-travel-scheme In writing: Post to Senior Executive Officer, Climate Action, South Dublin County Council, County Hall, Tallaght, Dublin D24 A3XC.

South Dublin County Council

Knocklyon to Ballyboden Active and Sustainable Travel Scheme

Application type: Application Under Part 8
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SD26B/0032W

26 Jan 2026

Status: Final Grant

(i) Demolition of single storey lean-to shed and removal of existing boundary wall to the front; (ii) Construction of a two-storey extension to the front/north, side/west and rear/south of the existing two-storey dwelling with associated internal reconfigurations; (iii) provision of 1 no. rooflight and 2 no. solar panels; (iv) Provision of new boundary walls (1.2m) to the front; and, (v) All ancillary works, inclusive of landscaping, boundary treatments and SuDS drainage, necessary to facilitate the development.

South Dublin County Council

2, Knocklyon Avenue, Knocklyon, Dublin 16, D16 H3K8

Application type: PermissionDecision: Grant Permission
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SD25B/0592W

13 Jan 2026

Status: Final Grant

The development will consist of A. demolition of existing single storey pitched roof rear extension, to be replaced with a proposed single storey flat roofed rear extension, B. conversion of existing garage to ground floor bedroom, C. works to front elevation to include a proposed roof tiled porch with 2 no. brick bay windows serving living room and proposed ground floor bedroom, D. replacement of existing windows E. widening of existing driveway piers to facilitate improved vehicular access, F. PV solar panels to rear roof, (g) all associated internal works, drainage, and site service works.

South Dublin County Council

14, Woodstown Park, Knocklyon, Dublin 16, D16 WR92.

Application type: PermissionDecision: Grant Permission
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SD26A/0001W

6 Jan 2026

Status: Appeal decided

Planning permission is sought by Mr. Ross Hollingsworth for a detached two storey, building to provide 2 number circa 82sq.m 2 Bed apartments with balconies. The drainage arrangements are to tap into the existing and as approved under planning reg ref SD11A/0065 and as amended by SD15A/0299, & SD17A/0163. A new pedestrian and vehicular access with crossover off Castlefield Avenue, & boundary walls on Lands at Castlefield Avenue, Knocklyon adjoining Mimosa Castlefield Avenue, Dublin 16, D16R2F3, part of folio 68669F & 75126L, and all ancillary site works.

South Dublin County Council

Lands at Castlefield Avenue, Knocklyon adjoining Mimosa Castlefield Ave, Dublin 16, D16 R2F3

Application type: PermissionDecision: Grant Permission
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SD25B/0581W

4 Dec 2025

Status: Final Grant

Planning Permission to demolish the existing 6sq.m. garage to the side and construct a new 51sq.m. Two Storey Granny Flat Extension with an 11sq.m. attic conversion to the side of the existing semi-detached dwelling and to include solar panels to the front a rear elevation and external insulation front and rear to the existing dwelling and to include ancillary works

South Dublin County Council

77 Dargle Wood, Knocklyon, Dublin 16, D16H773

Application type: PermissionDecision: Grant Permission
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Applications by area

Top South Dublin localities in the imported the latest year.

Dublin 1623
Dublin3
Knocklyon1
Knocklyon to Ballyboden Active and Sustainable Travel Scheme1

Monthly registrations

Recent application volume by registration month.

Aug 20252
Sept 20252
Oct 20253
Nov 20253
Dec 20252
Jan 20265
Feb 20262
Mar 20261
Apr 20261
May 20262
Jun 20263
Jul 20262

Areas in Jul 2026

Localities with the most applications in the latest registration month.

Dublin1
Dublin 161

Status in Jul 2026

Current status mix for applications registered in the latest month.

Valid2

Types in Jul 2026

Most common application types registered in the latest month.

Permission2

Planning activity and trends

Based on the latest 12 months of imported planning data for this council.

Applications

28

Latest registered

24 Jul 2026

Most active area

Dublin 16

Most common type

Permission

Latest month apps

2

Month change

-1

Monthly trend

Jul 2026

-1

01345Aug 25Feb 26Jul 26

Area overview

Dublin 16 accounts for 82%

Dublin 1682%
Dublin11%
Knocklyon4%
Knocklyon to Ballyboden Active and Sustainable Travel Scheme4%

Status mix

Final Grant accounts for 58%

Final Grant58%
Appeal decided8%
Decision8%
Unregistered application8%

Application types

Permission accounts for 71%

Permission71%
Retention14%
Application Under Part 87%
Declaration of Exemption Sect. 54%