Observation pack · Mayo County Council

Kilsallagh Lower , Westport , Co. Mayo

Permission for development at Kilsallagh Lower, Westport, Co. Mayo. The proposed development will consist of the construction of a dwelling with proprietary wastewater treatment system, percolation area and all associated site works.

Observations close 25 Sept 2026 1 day left

5 weeks from receipt (received 21 Aug 2026) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · fee €20 · council decision due 15 Oct 2026

The application

Reference: 2660668 · full record
Authority: Mayo County Council
Type: PERMISSION
Status: NEW APPLICATION
Applicant: not published by the national dataset — see the council register
Units: 0
Floor area: —
Site area: 2,503 m²
Received: 21 Aug 2026
We first saw it: 18 Sept 2026, 15:44
Decision due: 15 Oct 2026
Decision: N/a

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 http://www.eplanning.ie/MayoCC/AppFileRefDetails/2660668/0.
Write your observation.Quote 2660668 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. Mayo County Council takes it online with the submission or at the counter.
Submit before 25 Sept 2026.Online through the register above, or in writing to the Planning Department, Mayo 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

No current zoning polygon covers this site in the store.

Designations on or near the site

Nothing designated within 100 m of the site.

Nearby precedents within 500 m, last 5 years

Decisions

Reference	Decision	Decided	Units	Distance	Description
2660280	Refused	2 Jun 2026	0	0 m	Permission for development at Kilsallagh Lower, Westport, Co. Mayo. The proposed development will consist of the construction of a dwelling with proprietary wastewater treatment system, percolation area and all associated site works.
2360233	Refused	3 Aug 2023	0	468 m	Planning application for permission for development comprising changes to plans and elevations of approved extension and existing house (previously approved planning permission reg. ref. P20/555) and for provision of additional lower ground floor level to the approved extension to the rear of existing dwelling all located at Kilsallagh, Westport, Co. Mayo, F28XY46.
2360016	Conditional	15 Mar 2023	1	0 m	The installation of approximately 15Km of 250mm OD water Trunk Main, which will extend from a position approximately 1Km from Westport at the junction of Pound Road and the R355 in the townland of Carrownalurgan to Kilsallagh Lower at the road junction between the R355 and the L1826 road to Drummin and the installation of approximately 29.3Km of a mains distribution network to supply water to 473 No Consumers along the route of the Trunk Main and in the area to the Townlands to the West of Croagh Patrick. All associated temporary site development works to gain access including clearance of vegetation, disassembly and reassembly of gate posts/ piers and removal and reinstatement of existing fencing, walls, and hedging; and any other temporary associated and ancillary development works required for the purposes of the proposed watermain, including the installation of stone tracks and temporary watercourse crossings. The watermain pipeline is located within the townlands of Cloghan, Clooneen, Knockfin, Ardoley, Churchfield, Knockaraha East, Knockaraha West, Streamstown, Belclare, Killadangan, Deerpark West, Murrisknaboll, Carrowkeeran, Bellataleen, Carrowkeel, Murrisk Demesne, Meermihil, Glaspatrick, Thornhill, Carrowmacloughlin, Leckanvy, Killsallagh Lower, Killsallagh Upper, Kinknock, Kilgeever, Cuilleen, Mullagh, Cartoor, Glenbaun, Glencally, Furgill, Cregganroe and Boheh in County Mayo.
211245	Conditional	26 Jan 2022	1	329 m	REPLACEMENT OF AN EXISTING FARM BUILDING WITH A DWELLING HOUSE INCORPORATING A GARAGE AND TO CONSTRUCT A PROPRIETARY EFFLUENT TREATMENT SYSTEM
21999	Refused	10 Nov 2021	0	468 m	ALTERATIONS TO THE APPROVED TWO STOREY EXTENSION (P20/555) TO ACCOMMODATE THE FOLLOWING: CONSTRUCTION OF A BASEMENT LEVEL THERMAL SUITE/HOME GYM TO BE LOCATED BELOW THE GROUND FLOOR OF THE APPROVED TWO STOREY EXTENSION WITH A SUBTERRANEAN PASSAGE LINK TO THE PROPOSED TWO STOREY GUEST ACCOMMODATION BUILDING LOCATED TO THE SIDE (NORTH-EAST) COMPRISING OF A BEDROOM AND ANCILLARY ROOMS AT THE LOWER LEVEL AND A GAMES AND CINEMA ROOM AT THE UPPER LEVEL AND MINOR ALTERATIONS TO GROUND AND FIRST FLOOR OF THE APPROVED TWO STOREY EXTENSION ELEVATIONS TO PROVIDE CORNER WINDOWS TO NORTH-EAST ELEVATION IN LIEU OF STANDARD WINDOWS
21617	Conditional	13 Oct 2021	2	33 m	CONSTRUCT A DWELLING HOUSE, GARAGE AND PROPREITARY EFFLUENT TREATMENT SYSTEM

Appeals

ACP case	Type	Outcome	Decided	Distance
317864	—	Granted with conditions	1 Oct 2024	468 m
312134	—	Refused	22 Jun 2023	468 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

21 Aug 2026 New application · observations close 25 Sept 2026
21 Aug 2026 Decision

Generated from the Planning Register store; nothing was fetched live for this page. Source: national planning dataset, fetched 18 Sept 2026, 15:44. Not legal advice — confirm the deadline with Mayo County Council before relying on it.