Observation pack · South Dublin County Council

64A, Cooldrinagh Lane, Leixlip, Dublin, W23DEK4

Planning permission for the conversion of the existing attic space to a bedroom with dormer windows to the front and a dormer type extension to the front, side and rear with dormer windows to the front and rear.

Observations close 1 Oct 2026 10 days left

5 weeks from receipt (received 27 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee €20 · council decision due 21 Oct 2026

The application

Reference: SD26B/0384 · full record
Authority: South Dublin County Council
Type: Permission
Status: Referral
Applicant: not published by the national dataset — see the council register
Units: —
Floor area: 150 m²
Site area: 721 m²
Received: 27 Aug 2026
We first saw it: 15 Sept 2026, 20:40
Decision due: 21 Oct 2026
Decision: not yet decided

The national dataset truncates descriptions (80 characters for DLR, 70 for Fingal) and omits the applicant. The full description and the drawings are on the council register linked in step 1.

How to submit an observation

Read the file on the council register.Drawings, planning statement and site notices are at https://planning.agileapplications.ie/southdublin/application-details/70912.
Write your observation.Quote SD26B/0384 at the top, give your name and the address the authority should reply to, and confine it to planning matters — zoning objective, height, overlooking, traffic, drainage, heritage. What you say here is what you can later appeal on.
Pay the €20 fee.Every submission needs it; without it the observation is invalid and is returned. South Dublin County Council takes it online with the submission or at the counter.
Submit before 1 Oct 2026.Online through the register above, or in writing to the Planning Department, South Dublin County Council. The test is the date the authority receives it, not the date you post it.
Keep the acknowledgement.The council's receipt is your proof of a valid observation — see below.

Statutory basis. Section 34(1) of the Planning and Development Act 2000 (as amended) requires a planning authority to consider any submission or observation made to it in accordance with the Regulations. Article 29 of the Planning and Development Regulations 2001 (as amended) sets the window: a submission or observation must be received by the authority within five weeks beginning on the date of receipt of the application, and must be accompanied by the prescribed fee of €20. A submission received after the window, or without the fee, is invalid and the authority must return it.

After you submit: keep the acknowledgement. Under the 2024 Act it secures your right to appeal — only the applicant and a person who made a valid observation may bring the council's decision to An Coimisiún Pleanála, within four weeks of the decision. Making a valid observation is also what buys a right of appeal: under s.37(1) of the 2000 Act, only the applicant and a person who made a valid submission or observation to the planning authority may appeal the decision to An Coimisiún Pleanála (within four weeks of the decision). Missing the five-week window closes both doors.

What the site is zoned

Code	Objective	Plan	In force
R2 Existing residential	RES: To protect and/or improve residential amenity	SD-001:DP:south-dublin-county-development-plan-2022-2028	8 Mar 2022 → 8 Mar 2028

An application that accords with the zoning objective is hard to resist on principle; one that does not may be a material contravention, which the council can only grant by the s.34(6) procedure with its own notice and window.

Source: SDCC SD-001:DP:south-dublin-county-development-plan-2022-2028 · fetched 11 Sept 2026, 23:18

Source	Licence	Fetched	Link
SDCC SD-001:DP:south-dublin-county-development-plan-2022-2028	—	11 Sept 2026, 23:18	open

Designations on or near the site

NIAH-recorded building × 1
water pump
Radon risk area × 2
About 1 in 10 homes in this area is likely to have high radon levels · About 1 in 5 homes in this area is likely to have high radon levels

Nearby precedents within 500 m, last 5 years

Decisions

Reference	Decision	Decided	Units	Distance	Description
SD26B/0395W	Invalidate application	7 Sept 2026	—	95 m	Permission for proposed 2 storey rear extension and alterations to existing dwelling to provide new kitchen/dining/living area layout at ground floor, additional bedroom and provision of en-suite bathrooms to all bedrooms at first floor, relocation of entrance door from side of dwelling to front of dwelling, demolition of existing single storey rear extension, demolition of rear boundary wall and erection of new boundary wall and associated site works.
SD26A/0026W	Refuse permission	25 Mar 2026	—	484 m	Planning permission for a self-storage container park, alterations to existing site entrance, new site boundary treatments, hardstanding, soft landscaping, ancillary site services and all associated site works
SD25B/0645W	Grant permission	19 Jan 2026	—	447 m	The development will consist of converting the existing garage to habitable space, including a small ground floor extension to the front widening the front door opening a single-storey rear extension a single-storey shed in the rear garden a pergola in the rear garden and all associated site and garden works.
SD24A/0891W	Grant permission	10 Nov 2025	—	17 m	Permission for the development of 6 Nr dwelling houses at Cooldrinagh Lane, Leixlip, Co. Dublin, in the townland of Cooldrinagh. The Site is located to the south of Cooldrinagh Lane (house), and to the west of Cooldrinagh Lane. The proposed development will consist of the construction of 6 No. 2 storey detached 4-bedroom houses. The proposed development will be served by a previously approved vehicular access (Ref SD22A/0469) off Cooldrinagh Lane along with all associated Car Parking, landscaping and boundary treatment works, the provision of private open space areas comprising hard and soft landscaping, site services (foul drainage with associated pumping station, surface water drainage and water supply) and all associated site works.
ED25/0050	Request additional information	21 Jul 2025	—	487 m	Development of hangar and helipad at Weston Airport for the purposes of search and rescue operations. Change of use from operational airport buildings to search and rescue base facility, intensification of use for search and rescue operations 24/7, 365 days per year.
SD25A/0039W	Grant permission	4 Apr 2025	—	55 m	Permission to erect a new main entrance sign consisting of metal wing structure on a granite plinth, to a height of 4.15m, with individually mounted metal lettering (forming informational signage) with lighting and associated site works.
SD23A/0324	Grant permission	6 Aug 2024	—	22 m	Proposed Search and Rescue (SAR) hangar on lands forming part of Weston Airport, at Celbridge Road, Backweston, Lucan, Co. Dublin. The proposed development will consist of a part single and part two storey SAR helicopter hangar of 1,984.4 sq.m FGA to accommodate 2 no. helicopters, maintenance store, workshop and facilities, operations rooms and offices, staff kitchen and accommodation for on shift personnel. The hangar facility will also facilitate maintenance, repair, and overhaul (MRO) activities for SAR helicopters only. A single-storey structure of 48.9 sq.m GFA facilitating ESB substation, switch room, and security room is also proposed. Permission is also sought for airside infrastructure comprising apron area to connect with existing apron, refuelling areas, service access area and a subdivided fenced compound to accommodate airside SAR support vehicles. The landside subdivision of the fenced compound will house a generator and water tank for firefighting purposes. Also proposed is the reconfiguration of existing emergency airside access from the R403 Celbridge Road to facilitate a dual emergency (airside) access route; pedestrian footpath and access to the proposed development; 20 no. car parking spaces including EV charging and disabled parking provision; 17 no. bicycle parking spaces; watermain and drainage works including foul pump station and rising main; landscaping including paving, planting, earth mounding, and SuDs, SAR facility wall-mounted signage, fencing and all associated site development works on a site area of 2.1112 Ha.
ED24/0009	Declared exempt	21 Mar 2024	—	443 m	The installation of a system of 'Visual Aids to Navigation', including all associated electrical ducting, an aeronautical beacon, runway edge lights, runway lead-in lights, runway threshold identification lights, Precision Approach Path Indicators (PAPI's), runway end lights, stopway lights, runway guard lights, stop-bars, taxiway edge lights, apron floodlighting and wind-direction indicator (windcone) lights. The standardisation of the width of the straight sections of all taxiways to 11m (with wider than 11m for turns). (Please refer to the cover letter enclosed within for a detailed description of the proposed development)

Appeals

ACP case	Type	Outcome	Decided	Distance
500417	Planning Appeal	pending	5 Dec 2025	17 m
320668	Planning Appeal	Granted with conditions	16 Jul 2025	22 m
320704	Leave to Appeal S37(6)	Refused	24 Sept 2024	22 m
315959	Planning Appeal	Refused	30 Jun 2023	326 m

If neighbours here have appealed before and lost, the inspector's report on that case is the single most useful thing to read.

What has happened on this file

27 Aug 2026 New application · observations close 1 Oct 2026

Generated from the Planning Register store; nothing was fetched live for this page. Source: national planning dataset, fetched 15 Sept 2026, 20:40. Not legal advice — confirm the deadline with South Dublin County Council before relying on it.