Observation pack · South Dublin County Council
23 Delaford Ave, Knocklyon, Dublin 16, D16K3E5
Conversion of existing garage to habitable use, construction of a single-storey flat-roof extension to the rear, construction of a single storey pitched-roof extension to the front and side incorporating two rooflights to the side roof slope, and provision of a new pitched roof over the existing single-storey to the front and side.
Observations close 16 Nov 2026 18 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/0459W · 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
- 50 m²
- Site area
- 297 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/71191.
- Write your observation.Quote
SD26B/0459Wat 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 |
|---|---|---|---|
| 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 × 1About 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/0334W | Grant permission | 11 Sept 2026 | — | 327 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. |
| SD26B/0225W | Grant permission for retention | 6 Jul 2026 | — | 372 m | The development consists of re-location and enlargement of ground floor window to eastern side elevation of dwelling-house. |
| SD17A/0364/FEP1 | Grant further ext. of duration of permission | 2 Jul 2026 | 11 | 343 m | (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. |
| LRD26A/0001W | Grant permission | 29 Jun 2026 | 5 | 365 m | Permission for a Large Scale Residential Development LRD at No. 2 Firhouse Road and the former Morton's The Firhouse Inn. The proposed development seeks amendments to the previously approved Largescale Residential Development LRD granted under Reg. Ref. LRD24A/0001 ABP Ref. 319568 24. The proposed amendments include a reduction in the footprint of the basement levels, amendments to the housing mix and elevations of Block A and Block B, amended roof profile, provision of surface level parking, and relocation of substation. The revised application is seeking permission for a total of 83 no. housing units (100 no. units applied for and 78 no. units granted by An Bord Pleanála), providing an increase of 5 no. units within the building footprint granted within Reg. Ref. LRD24A/0001 ABP Ref. 319568 24. The proposal provides for 2 no. blocks ranging in height from 3 to 4 storeys over basement levels comprising 4 no. duplex units, 2 no. 1 bedroom units, 1 no. 2 bedroom 3 person unit, and 1 no. 2 bedroom 4 person unit and 79 no. apartment units 1 no. studio units, 54 no. 1 bedroom units, 5 no. 2 bedroom 3 person units, and 19 no. 2 bedroom 4 person units. The apartment blocks will consist of the following: Block 01 Amendments to the previously permitted 3 storey rising to 4 storey over basement levels, comprising 54 units 2 no. studio units, 15 no. 1 bedroom units, 4 no. 2 bedroom 3 person units, 13 no. 2 bedroom 4 person units, along with 4 no. duplex units comprising 2 no. 1 bedroom units, and 2 no. 2 bedroom 3person units, to now provide for a 3 storey rising to 4 storey over basement levels comprising of 38 no. units as follows 1 no. studio unit, 16 no. 1 bedroom units, 4 no. 2 bedroom 3 person units, 13 no. 2 bedroom 4 person units, along with 4 no. duplex units comprising 2 no. 1 bedroom units, and 1 no. 2 bedroom 3 person unit and 1 no. 2 bedroom 4 person unit. Each unit will have its own private open space in the form of a private balcony or terraced area. Block 02 Amendments to the previously permitted 4 storey over basement levels comprising 40 units 18 no. 1 bedroom units, 2 no. 2 bedroom 3 person units, 17 no. 2 bedroom 4 person units, and 2 no. 3 bedroom units, to now provide a 4 storey over basement levels comprising of 45 no. units as follows 38 no. 1 bedroom units, 1 no. 2 bedroom 3 person units, and 6 no. 2 bedroom 4 person units. Each unit will have its own private open space in the form of a private balcony or terraced area. The development will also provide for amendments to the permitted 395.2 sq. m. of commercial space including 1 no. office and 1 no. café located on the ground floor of Block 01, 1 no. creche and associated play area to the rear of Block 01, 1 no. barber between Block 01 and Block 02 and 1 no. bookmaker and medical consultancy, located on the ground floor of Block 02 to now provide for 423.5 sq. m. of commercial space as follows 1 no. office and 1 no. café located on the ground floor of Block 01. 1 no. creche and associated play area to the rear of Block 01. 1 no. barber between Block 01 and Block 02. 1 no. bookmaker and medical consultancy, located on the ground floor of Block 02. The proposed development will also provide for 63 no. car parking spaces including accessible parking and Electric Vehicle parking across basement, lower ground floor levels, and surface car parking, 196 no. bicycle parking spaces, 5 no. motorbike parking spaces; landscaping, including communal open space and public open space and children's play spaces, SuDS measures boundary treatment public lighting, re-located ESB substation plant and waste storage areas, associated signage details, all associated site and infrastructure works necessary to facilitate the development, with 1 no. pedestrian and cyclist access from Firhouse Road and 1 no. pedestrian and cyclist access from Mount Carmel Park, as granted under Reg. Ref. LRD24/A0001 ABP Ref. 319568 24. |
| SD26B/0165W | Grant permission | 2 Jun 2026 | — | 348 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/0156W | Grant permission | 28 May 2026 | — | 393 m | Amendmetns to the first floor extension previously granted planning permission Reg Ref: SD21B/0021 |
| SD26B/0056W | Refuse permission | 1 Apr 2026 | — | 341 m | Modifications to a previously granted permission (SD25B/0061W), to include construction of a dormer to the rear pitch of the roof and associated revisions to the internal layout, of the existing two storey semi-detached house. |
| SD26B/0032W | Grant permission | 12 Mar 2026 | — | 191 m | (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. |
Appeals
| ACP case | Type | Outcome | Decided | Distance |
|---|---|---|---|---|
| 501266 | Planning Appeal | Refused | 25 Aug 2026 | 341 m |
| 501053 | Planning Appeal | Granted | 23 Jul 2026 | 263 m |
| 500186 | Planning Appeal | Granted with conditions | 8 Apr 2026 | 159 m |
| 313777 | Strategic Housing Development - Application | Refused | 3 Sept 2025 | 366 m |
| 320268 | Planning Appeal | Refused | 12 May 2025 | 263 m |
| 319568 | Appeal - LRD | Granted with conditions | 26 Jul 2024 | 365 m |
| 315930 | Planning Appeal | Refused | 14 Feb 2024 | 9 m |
| 312362 | Planning Appeal | Granted with conditions | 20 Jul 2022 | 402 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.