Planning agent profile

Derek O Mahoney planning activity

6 planning applications as agent or architect · latest 25 Aug 2026

Is this an architect?

Agent, architect: what is the difference?

The agent is the person or firm who lodged the application for the applicant. That can be an architect, an architectural technologist, a planning consultant, an engineer or a surveyor. Council files do not say which.

In Ireland only people on the Register of Architects, kept by the RIAI, may call themselves an architect. You can check any individual there.

PlanningBrief does not check professional registration.

At a glance

Derek O Mahoney is named as planning agent on 6 applications received between July 2025 and August 2026, in Tipperary and Waterford. They are 5 extensions and 1 commercial application. Of these, 3 have been granted and 3 are at further information.

  • Extensions · 5
  • Commercial · 1
  • From council planning registers · updated 25 Oct 2026
Applications 6

Planning files

Granted 3

3 at further info

Counties 2

Tipperary, Waterford

Newest first

Applications Derek O Mahoney has worked on

  • Clonmel, Co. Tipperary

    Indefinite change of use of top floor premises from unused space to…

    Tipperary County Council · received 25 Aug 2026

    Further information requested 15 Oct 2026
  • Clonmel, Co. Tipperary

    Renovations to existing garage space and to convert to living space

    Tipperary County Council · received 9 Jul 2026

    Further information requested 31 Aug 2026
  • Kilmanahan, Co. Waterford

    Single-storey extension constructed to the rear of the exisitng…

    Waterford City and County Council · received 18 Jun 2026

    Further information requested 31 Jul 2026
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  • Clonmel, Co. Tipperary

    Indefinite material change of use from existing shop to a health…

    Tipperary County Council · received 20 May 2026

    Granted 13 Jul 2026
  • Clonmel, Co. Tipperary

    Single storey extension and associated siteworks to the side of the…

    Tipperary County Council · received 6 May 2026

    Granted 21 Jul 2026
  • Clonmel, Co. Tipperary

    Renovation and construction of a two storey extension to the rear of…

    Tipperary County Council · received 29 Jul 2025

    Granted 14 Apr 2026

Open any application for its details and the council's file, and check the details there before acting. Data updated 25 Oct 2026.

Questions

About Derek O Mahoney's planning work

What kind of work does Derek O Mahoney do?

Of 6 applications: 5 extensions and 1 commercial application.

Where does Derek O Mahoney work?

Applications in Tipperary (5) and Waterford (1), with 2 councils.

Is Derek O Mahoney an architect?

Council planning files name the agent but not their profession. To check whether someone may use the title architect in Ireland, search the RIAI Register of Architects.

How many of Derek O Mahoney's applications were granted?

3 granted and none refused; 3 at further information.