GrantedRetentionDecided 9 March 2026

112 Silchester Park, Glenageary, Co. Dublin, A96A7X0

Retention of alterations to a permitted development, including a rear dormer, attic conversion, and a side rooflight.

D26A/0023/WEB · Dun Laoghaire Rathdown County Council · Lodged 19 January 2026

Reference: D26A/0023/WEB
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission for Retention
Received: 19 January 2026

Summary

AI-generated

The application seeks retention permission for alterations to a previously permitted development. The works to be retained include a flat-roofed dormer to the rear, an attic conversion to a bedroom and en-suite, and an additional side rooflight.

Retentionretentionattic conversiondormer

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

The development will consist of alterations to the existing permitted development under register reference no. D25a/0253/web. Additional works include the construction of a flat roofed dormer to the rear, attic conversion to bedroom and en suite, and 1 no. Additional fixed roof light to the side.

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
104 Silchester Park, Glenageary, Co Dublin	May 2026	€1,200,000	86 m
No 1 Gowrie, Glenagearyprice excludes VAT	Feb 2025	€1,198,307	92 m
Apt 6 Greythorn Manor, Glenagearyprice excludes VAT	May 2025	€700,441	92 m
139 Silchester Park, Glenageary, Dublin	May 2026	€1,300,000	99 m
18 Bóthar Silchester, Gleann na gCaorach	May 2026	€4,400,000	168 m
8 Silchester Rd, Glenageary, Dublin	Sept 2025	€1,800,000	241 m
Rosenberg, 31 Silchester Road, Glenageary	Oct 2025	€4,500,000	241 m
Rivendell, Silchester Park, Glenageary	Mar 2025	€975,000	242 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 received19 January 2026
Decision due13 March 2026
Decision issued9 March 2026

In the area

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