3, St Aongus Lawn, Tallaght, Dublin 24

What’s proposed

A new two storey extension to the side and single storey extensions to the rear and front of the existing dwelling

Reference: SD20B/0268
Local authority: South Dublin County Council
Status: Granted · register status “Decision”
Received: 24 Jul 2020
Observations close: 28 Aug 2020 (closed 2230 days ago)
Decision due: 17 Sept 2020 · decided 17 Sept 2020
Decision: Grant permission on 17 Sept 2020
Proposed development: A new two storey extension to the side and single storey extensions to the rear and front of the existing dwelling
As published by the register.
Site area: 231 m² from the mapped boundary, not the council's figure
Applicant: Not published — the national feed carries no applicant name council register

Show all 16

From Buildable, our sister site for development land in Dublin.

National planning feed (NPAD), fetched 11 Sept 2026, 18:51.

Source: npad · fetched 11 Sept 2026, 18:51

Source	Licence	Fetched	Link
npad	CC-BY-4.0	11 Sept 2026, 18:51	open

Planning permission for an extension in Ireland — the 45 m² exemption and a 94% grant rateDublin councils granted 94% of extension applications decided in the year to September 2026. Since 27 July 2026 a rear extension of up to 45 m² can be exempt. The conditions, when you still apply, the fee and the timeline.
An Bord Pleanála appeal, now An Coimisiún Pleanála — four weeks, €220, and a 25% reversal rateThe Commission reversed the council in 25% of the 1,195 Dublin-area appeals decided in the two years to September 2026. Who can appeal, the four weeks, the €220 fee, why 240 appeals a year fail on procedure, and the odds by direction.
Certificate of compliance with planning permission in Ireland17% of GDA planning applications are retention. Who can sign a certificate of compliance with planning permission, what the RIAI / Law Society opinion covers, the gaps it leaves.
How long does planning permission last? Five years, and a 79% rate on extensions of durationA permission lasts five years from the grant. Dublin councils granted 79% of the 343 extension-of-duration applications lodged in the two years to September 2026. What "commenced" means and how to apply in time.