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Planning application

25 Liffock Park, Castlerock

Granted Causeway Coast and Glens LA01/2025/1110/F Full

Works: Extension Loft or dormer

Relates to LA01/2023/1088/F

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Front dormer extension to previously approved roof conversion (LA01/2023/1088/F)

As published by the council, reference LA01/2025/1110/F

Application record

Reference
LA01/2025/1110/F
Type
Full
Status
Determined
Decision
Granted
Received
21 Oct 2025
Validated
23 Oct 2025
Decided
8 Jun 2026
Ward
Castlerock

Timeline

Dates from the published record

  1. 21 Oct 2025

    Received by Causeway Coast and Glens

  2. 23 Oct 2025

    Validated

    Checked as complete and ready for consideration.

  3. 8 Jun 2026

    Decision issued: Granted

  4. 29 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • LA01/2023/1088/F Granted

    25 Liffock Park Castlerock BT51 4DG

    Loft conversion, proposed rear dormer and associated alterations (Amended Plans)

    Decided 16 Dec 2024 Full applications

Who's behind it

Company information only, from the register and Companies House

Montgomery Irwin Architects Ltd Agent, an architecture practice registered in Coleraine

Active · incorporated 2008 · Coleraine

19 applications on PlanIndex · across 4 councils · 100% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

12 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What this grant of permission means

Causeway Coast and Glens granted permission on 8 June 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 25 Liffock Park Castlerock BT51 4DG

    LA01/2023/1088/F Submitted 26 Oct 2023 50 yards away

    Loft conversion, proposed rear dormer and associated alterations (Amended Plans)

    Granted Full applications Loft or dormer 20 docs

  • Lands adj. to No. 79 Sea Road, Castlerock (Access via Belvedere Park).

    LA01/2024/0633/F Submitted 23 May 2024 350 yards away

    Proposed new dwelling with internal garage and all associate works

    Granted Full applications New dwelling 36 docs
    Domestic

  • 50-58 Sea Road, Castlerock

    LA01/2025/0848/S54 Submitted 19 Aug 2025 350 yards away

    Section 54 application to vary Condition No.1 of LA01/2016/0022/F from 10 year to 17 years for retention of site of temporary touring caravan use, welfare, servicing and associated activity (amended description)

    Granted 8 docs

  • 36 Circular Road, Castlerock

    LA01/2026/0203/F Submitted 16 Feb 2026 400 yards away

    98% historically approved · decision due ~15 Apr

    Replacement dwelling to provide 4 bedroom dwelling (Amended plans received)

    Awaiting decision Full applications 25 docs
    Domestic

  • 13 Circular Road Castlerock BT51 4XA

    LA01/2023/0185/F Submitted 16 Feb 2023 0.3 miles away

    Replacement of rear 1970s return comprising garage, utility and cloakroom on ground floor and sunroom on first floor, with kitchen/diner, utility on ground floor, sunroom on first floor and detached garage.

    Granted Full applications 9 docs

  • 34 Belvedere Park, Castlerock

    LA01/2026/0478/F Submitted 5 May 2026 0.3 miles away

    Elevational alterations to the existing dwelling to include: new window opening to side elevation, alterations to existing windows to rear elevation and new windows, front door & garage door to existing openings to front elevation. Internal alterations.

    Granted Full applications Windows or glazing 23 docs
    Domestic

In Causeway Coast and Glens

  • LA01/2025/1033/F Granted

    The Barn, 24 Kiltinney Road, Coleraine

    Single storey / storey and a half extension to existing dwelling, with extension of curtilage and diversion of driveway to avoid farm lane (no alteration to existing access) (amended description)

    Received 1 Oct, published by the council 29 Jul 2026 Full applications
  • LA01/2026/0936/F Awaiting decision

    103 Main Street, Portrush

    Proposed new dormer window to rear elevation to replace existing windows at same level. Replacement of existing mono-pitch roof to form flat roof terrace to rear elevation, external steps from new terrace to rear garden. Associated internal alterations.

    Received 9 Sep, published by the council 14 Sep 2026 Full applications
  • LA01/2026/0941/F Awaiting decision

    61 Bann Meadows, Ballymoney

    Proposed rear extension to existing dwelling

    Received 9 Sep, published by the council 14 Sep 2026 Full applications
  • LA01/2026/0940/F Awaiting decision

    40 West Gate, Ballymoney

    Extension to side of existing dwelling to create a larger kitchen and ground floor shower room

    Received 9 Sep, published by the council 14 Sep 2026 Full applications
  • LA01/2026/0336/F Granted

    25m NW of No. 58 Glenkeen Road, Aghadowey, Coleraine

    1.5 storey farm dwelling with domestic garage

    Received 25 Mar, published by the council 29 Jul 2026 Full applications