35 Tymon North Lawns, Tallaght planning approval ran out

What’s proposed

Construction of a new single storey rear extension (22sq.m) with pitched roof and all associated site works

Reference: SD21B/0143
Local authority: South Dublin County Council
Status: Granted · register status “Decision”
Received: 18 Mar 2021
Observations close: 22 Apr 2021 (closed 1997 days ago)
Decision due: 12 May 2021 · decided 12 May 2021
Decision: Grant permission on 12 May 2021
Proposed development: Construction of a new single storey rear extension (22sq.m) with pitched roof and all associated site works
As published by the register.
Site area: 211 m² from the mapped boundary, not the council's figure
Applicant: Not published — the national feed carries no applicant name council register

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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.