InvalidExtensionDecided 11 April 2025

The Priory, Monkstown Road, Monkstown, Blackrock, Dublin, A94F6Y2 (A Protected Structure)

Extension and alterations to a protected house, including a new garden room.

D25A/0286/WEB · Dun Laoghaire Rathdown County Council · Lodged 8 April 2025

Reference: D25A/0286/WEB
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 8 April 2025

Summary

AI-generated

The development at this protected structure includes a 30 square metre first-floor side extension with a roof profile change from flat to hipped. It also includes the construction of a 43.3 square metre single-storey garden room and window replacements.

Extensionprotected structureextensiongarden room

Floor area: 73 m²

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

(i) change of roof profile atop existing side extension at first floor level (granted under reg. Ref. D16a/015) from flat roof to hipped roof and extension of the building southwards at this location by 30sqm; (ii) the removal of 1 no. Existing window and providing for 1 no. Circular window to eastern elevation, the replacement of 2 no. Existing windows to the north and south, and the provisions of painted timber windows to the north, south, and east elevation of the new bedroom and its en-suite; (iii) provision of a 43.3sqm single storey garden room along the western boundary of the rear garden; and; (iv) all ancillary landscaping, suds drainage, and site works necessary to facilitate development. The proposed works will result in the existing 4-bedroom house now comprising 5 bedrooms and the provision of a rear garden room to ‘the priory’, monkstown road, monkstown, blackrock, co. Dublin, a94 f6y2 (a protected structure).

Land-use zoning

What this land is zoned for

Objective ARS

“A To provide residential development and improve residential amenity while protecting the existing residential amenities”

Objective set by the COUNTY DEVELOPMENT PLAN 2022-2028 (2022–2028). 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 plan

Built & 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

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
1beauparc Downs, Monkstown Valley, Monkstown	Dec 2025	€400,000	44 m
18 Beauparc Downs, Monkstown Valley, Dublin	May 2025	€495,000	63 m
17 Beauparc Downs, Monkstown Valley, Monkstown	Feb 2026	€550,000	63 m
27 Belgrave Sq East, Monkstown, Dublin	Mar 2025	€2,460,000	116 m
16 Southdene, Monkstown Valley, Monkstown	Jun 2026	€630,000	124 m
2 Carraiglea, Queens Park, Monkstown	Apr 2026	€858,555	135 m
4 Drayton Close, Monkstown Rd, Monkstown	Feb 2026	€612,000	142 m
35 The Alders, Monkstown Valley, Monkstown	May 2026	€382,000	152 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 received8 April 2025
Decision due30 May 2025
Decision issued11 April 2025

In the area

Applications near this site

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Related developments

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Community

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