GrantedExtensionDecided 10 August 2023

20 Brook Court, Mountashton, Monkstown, Co. Dublin

Demolition of a rear extension to build a new single-storey extension, front porch, and driveway widening.

D23A/0413 · Dun Laoghaire Rathdown County Council · Lodged 21 June 2023

Reference: D23A/0413
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 21 June 2023

Summary

AI-generated

The project involves the demolition of an existing single-storey rear extension and the construction of a new single-storey extension in its place. Additional works include a new front entrance porch, external wall insulation, window and door upgrades, and widening of the driveway entrance.

Extensionextensiondemolitionretrofit

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

Planning permission for the proposed refurbishment and extension. The proposed development will consist of the demolition of the single story extension to the rear of the house and the construction of a new single- storey extension in its place. The proposed works will also include: an extension to the front including a new entrance porch; external wall insulation and the upgrade of windows and doors; widening of the existing driveway entrance; and all associated development works, including landscaping, drainage, and site works.

Built & sold

What happened next

Beyond the decision: whether this development was built, and what property here has sold for.

Built — construction complete

A commencement notice records works starting on 18 April 2024.

Notified floor area: 207 m²

Recent sales nearby

within 500 m

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
11 Brook Court, Monkstown, Dublin	Oct 2025	€906,027	77 m
25 Windsor Park, Monkstown, Dublin	Oct 2025	€845,000	90 m
43 Ashton Park, Monkstown, Blackrock	Jan 2026	€1,200,000	114 m
36 Richmond Park, Monkstown, Co Dublin	Mar 2026	€590,000	172 m
44 Richmond Park, Monkstown, Dublin	May 2026	€880,000	187 m
47 Richmond Park, Richmond Hill, Monkstown	Jan 2026	€636,500	201 m
28 Richmond Grove, Monkstown, Dublin	Nov 2025	€1,120,000	210 m
76 Windsor Dr, Monkstown, Dublin	Feb 2025	€870,000	210 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 received21 June 2023
Decision due15 August 2023
Decision issued10 August 2023
Permission expiry13 September 2026

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