15 RIVERDALE COURT, KNOCKTHOMAS, CASTLEBAR
Construction of a single-storey extension to an existing house in Castlebar.
21679 · Mayo County Council · Lodged 28 June 2021
- Reference
- 21679
- Authority
- Mayo County Council
- Register status
- Decided
- Type
- PERMISSION
- Received
- 28 June 2021
- Residential units
- 1
- Floor area
- 27 m²
Summary
AI-generatedThe development consists of building a single-storey extension to the side or rear of the existing dwelling, along with associated site development works.
- Storey
- 1
Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.
Official record
Development description
Construct single storey extension to the existing dwelling, along with any associated site development works
Land-use zoning
What this land is zoned for
“To protect and improve the amenity and character of existing residential areas.”
Objective set by the Castlebar Local Area Plan (2024–2030). The planning authority decides each application on its own merits — this is the zoning context, not a compliance assessment.
Read the zoning objectives in the development planBuilt & sold
What happened next
Beyond the decision: whether this development was built, and what property here has sold for.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 95 Knockthomas Est, Castlebar, Mayo | Mar 2025 | €160,000 | 81 m |
| 30 Riverdale Court, Knockthomas, Castlebarnot full market price | Aug 2025 | €125,000 | 84 m |
| 38 Rowan Dr, Castlebar, Mayo | Nov 2025 | €247,000 | 88 m |
| 33 Rowan Dr, Castlebar, Mayo | Apr 2026 | €150,000 | 104 m |
| 50 Rowan Dr, Castlebar, Mayo | Jun 2025 | €200,000 | 111 m |
| 45 Riverdale Court, Castlebar, Mayo | Nov 2025 | €240,000 | 154 m |
| Knockthomas, Castlebar, Co Mayo | Mar 2025 | €240,000 | 165 m |
| 4 Castlegrove, Castlebar, Mayo | Jul 2025 | €236,000 | 246 m |
Nearby properties, not this site — a guide to local values.
Sources: Building Control Management System (commencement notices) and the Residential Property Price Register, licensed under CC BY 4.0. Records are matched to this application by location and may not be exhaustive; always confirm against the official source before relying on them.
Key dates
Timeline
- Application received28 June 2021
- Decision due22 August 2021
- Decision issued20 August 2021
- Grant issued23 September 2021
- Permission expiry22 September 2026
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted50 m away
CONSTRUCTION OF AN EXTENSION TO AN EXISTING DWELLING HOUSE TOGETHER WITH ANCILLARY SITE WORKS
101 RIVERDALE COURT , KNOCKTHOMAS , CASTLEBAR
2267MayoLodged 7 Feb 2022Extension
- Granted90 m away
Construction of new residential unit and all ancillary site works
Knockthomas Drive , Castlebar , Co. Mayo
2560937MayoLodged 16 Dec 2025New dwelling
- Granted130 m away
Demolition of existing buildings and the construction of 33 no houses with access roads, connection to public…
Knockthomas , Castlebar , Co Mayo.
2560024MayoLodged 20 Jan 2025Housing estate
- Granted150 m away
CONSTRUCT EXTENSION AND RENOVATION OF A DWELLING TOGETHER WITH ANCILLARY SITE DEVELOPMENT WORKS
KNOCKTHOMAS , CASTLEBAR , CO. MAYO
19558MayoLodged 22 Jul 2019Extension
- Granted150 m away
CONSTRUCT EXTENSION AND RENOVATIONS TO EXISTING DWELLING HOUSE
9 ROWAN DRIVE , CASTLEBAR , CO. MAYO
18317MayoLodged 8 May 2018Extension
- Granted150 m away
DEMOLISH SMALL SHED AND CARRY OUT EXTENSION TO EXISTING DWELLING, ALONG WITH ALL NECESSARY SITE WORKS AND…
45 RIVERDALE COURT , KNOCKTHOMAS , CASTLEBAR
16454MayoLodged 10 Jun 2016Extension
- Granted180 m away
RETENTION FOR SUBDIVISION OF A DWELLING HOUSE INTO THREE APARTMENTS AND A STORAGE SHED TOGETHER WITH ALL…
CLAIOMH SOLAIS , KNOCKTHOMAS , CASTLEBAR
18460MayoLodged 26 Jun 2018Retention
- Refused190 m away
RETENTION FOR DEVELOPMENT CONSISTING OF THE SUBDIVISION OF A DWELLING HOUSE INTO THREE APARTMENTS AND A…
CLAIOMH SOLAIS , KNOCKTHOMAS , CASTLEBAR
16998MayoLodged 22 Dec 2016Retention
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedExtension
ERECT A SINGLE STOREY EXTENSION TO THE SIDE OF EXISTING DWELLING HOUSE, AND ALL ASSOCIATED SITE WORKS
OLD GALLOWSFIELD , TRALEE , CO KERRY
221024KerryLodged 28 Sept 2022
- GrantedExtension
ERECTION OF A SINGLE STOREY EXTENSION TO THE SIDE OF EXISTING DWELLING AND ALL ASSOCIATED SITE DEVELOPMENT…
24 DUN NA RI , TULLYARVAN , BUNCRANA
1950886DonegalLodged 10 Jun 2019
- GrantedExtension
ERECTION OF A SINGLE STOREY EXTENSION TO SIDE OF EXISTING DWELLING AND ALL ASSOCIATED SITE DEVELOPMENT WORKS
10 WILLOW GROVE , BALLYMACARRY , BUNCRANA
1850241DonegalLodged 19 Feb 2018
- GrantedExtension
CONSTRUCTION OF A SINGLE STOREY EXTENSION TO EXISTING DWELLING WITH ALL ASSOCIATED SITE DEVELOPMENT WORKS
ST. KEVINS , ST. MARY'S ROAD , BUNCRANA
1651051DonegalLodged 18 Jul 2016
- GrantedExtension
DEVELOP A SINGLE STOREY EXTENSION TO AN EXISTING RESIDENCE, MINOR ELEVATIONAL ALTERATIONS TO AN EXISTING…
2A KENMARE RIVER COTTAGES , ARDEA , TOUSIST
23175KerryLodged 20 Feb 2023
- GrantedExtension
CONSTRUCT SINGLE STOREY EXTENSION TO THE EXISTING DWELLING HOUSE WITH ASSOCIATED ANCILLARY SITE WORK
CLOONACASTLE , BALLINROBE , CO. MAYO
17863MayoLodged 31 Oct 2017
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