Observation pack · South Dublin County Council

7A Glenvara Park, Knocklyon, Dublin 16, D16Y2R6

Construction of a single-storey extension to the side and rear of the existing dwelling, with mono-pitched roof accommodating extended living space and extended bathroom.

Observations close 16 Nov 2026 14 days left

5 weeks from receipt (received 12 Oct 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee €20 · council decision due 7 Dec 2026

The application

Reference: SD26B/0462W · full record
Authority: South Dublin County Council
Type: Permission
Status: Valid
Applicant: not published by the national dataset — see the council register
Units: —
Floor area: 22 m²
Site area: 349 m²
Received: 12 Oct 2026
We first saw it: 28 Oct 2026, 01:34
Decision due: 7 Dec 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/71193.
Write your observation.Quote SD26B/0462W 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 16 Nov 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
G1 Open space with recreation	OS: To preserve and provide for open space and recreational amenities	south dublin county development plan 2022 2028	8 Mar 2022 → 8 Mar 2028
R2 Existing residential	RES: To protect and/or improve residential amenity	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: South Dublin County Council development plan zoning · fetched 11 Sept 2026, 23:18

Source	Licence	Fetched	Link
South Dublin County Council development plan zoning	—	11 Sept 2026, 23:18	open

Designations on or near the site

Radon risk area × 2
About 1 in 10 homes in this area is likely to have high radon levels · About 1 in 20 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/0371W	Grant permission	6 Oct 2026	—	335 m	Conversion of existing attic space comprising of modification of existing roof structure; raising of existing gable c/w window; new access stairs; two roof windows to the front and flat roof dormer to the rear.
SD26B/0334W	Grant permission	11 Sept 2026	—	303 m	Modifications to previously granted application SD25A/0084 to include the construction of new rear dormer attic structure with playroom and ensuite and all associated works.
ED26/0057	Request additional information	26 Jun 2026	—	185 m	Repair of part of storm damaged boundary wall and fence.
SD26B/0165W	Grant permission	2 Jun 2026	—	256 m	Proposed build-up of existing hip in roof to side of roof into Dutch hip at attic level, with window in proposed gable wall, dormer roof window on rear slope of roof all at attic level.
SD26B/0027W	Grant permission	19 Mar 2026	—	437 m	Conversion of existing attic space comprising of modification of existing roof structure, raising of existing gable c/w window, new access stairs, 2no. roof windows to the front and flat roof dormer to the rear.
SD26A/0001W	Grant permission	27 Feb 2026	2	254 m	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.
SD25B/0698W	Grant permission	6 Feb 2026	—	366 m	Planning Permission for conversion of existing attic to non-habitable space including raised gable to mini-hip, dormer to rear, window to side & velux to front of existing dwelling.
SD25A/0181W	Grant permission	28 Jan 2026	—	459 m	Planning permission is sought to amend Condition No. 5 of Reg. Ref. WA/389 which states that the building be used as a geriatric nursing home as set out in the application to now state that the building be used as a nursing home for the provision of residential accommodation and care to people in need of care. There are no works proposed as part of this application.

Appeals

ACP case	Type	Outcome	Decided	Distance
501053	Planning Appeal	Granted	23 Jul 2026	254 m
500186	Planning Appeal	Granted with conditions	8 Apr 2026	395 m
320268	Planning Appeal	Refused	12 May 2025	254 m
315930	Planning Appeal	Refused	14 Feb 2024	407 m
314543	Planning Appeal	pending	1 Sept 2022	375 m
312362	Planning Appeal	Granted with conditions	20 Jul 2022	459 m
312625	Planning Appeal	Granted with conditions	15 Jun 2022	144 m
310999	Planning Appeal	Granted with conditions	17 Jan 2022	355 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

12 Oct 2026 New application · observations close 16 Nov 2026

Generated from the Planning Register store; nothing was fetched live for this page. Source: national planning dataset, fetched 28 Oct 2026, 01:34. Not legal advice — confirm the deadline with South Dublin County Council before relying on it.