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Planning application

LA11/2026/0498/F

20 Marlborough Street, Derry, BT48 9AY

Granted Derry City and Strabane Full

Proposal

Proposed Single Storey Extension to Rear of Existing 3 Storey Dwelling and minor Internal alterations

As published by the council, reference LA11/2026/0498/F

Timeline

Dates from the published record

  1. 2 Jul 2026

    Received by Derry City and Strabane

  2. 16 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 29 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 2 Oakfield Road, Londonderry, BT48 9BB

    Single Storey Side and Rear Extensions

    23 Aug 2025 84m away Full applications
  • Lands at Nos. 11, 11A and 12 Windsor Terrace, Infirmary Road, Derry and adjacent to the rear of Nos. 2, 4, 6, 8, 10, 12, 14, 18, 20 and 22 Creggan Road, Derry, No.1 Infirmary Road, Derry and Nos. 1-10 Windsor Terrace, Infirmary Road, Derry.

    Application For Non-Material Change For Amendments to Thickness and Position of sections of External Walls; Reduction of size of 6No. Windows; And relocation of Plant Room Door.

    26 Nov 2025 130m away Amendments
  • LA11/2026/0347/NMC Awaiting decision

    Lands at Nos. 11, 11A and 12 Windsor Terrace, Infirmary Road, Derry and adjacent to the rear of Nos. 2, 4, 6, 8, 10, 12, 14, 18, 20 and 22 Creggan Road, Derry, No.1 Infirmary Road, Derry and Nos. 1-10 Windsor Terrace, Infirmary Road, Derry.

    Non material change to application LA11/2022/0222/F -relating to amendments to window and door finishes

    1 May 2026 130m away Amendments
  • 22 Beechwood Avenue, Londonderry, BT48 9LP

    Retention of change of use from dwelling to 4 bed HMO (amended proposal, plans & additional information received

    29 Jan 2026 149m away Full applications
  • 12 Eglinton Terrace, Londonderry, BT48 9DZ

    Change of use from a 3 bed house to a 4 bed HMO

    16 Dec 2025 218m away Full applications
  • LA11/2026/0402/F Awaiting decision

    67 Creggan Road, Rosemount, Londonderry, BT48 9DA

    Erection of single storey garage to rear of property.

    28 May 2026 236m away Full applications

In Derry City and Strabane

  • LA11/2026/0538/F Awaiting decision

    91 Ballymagowan Avenue, Londonderry, BT48 9QR

    Construction of single storey rear extension to provide wheelchair accessible bedroom on ground floor. Associated landscaping / hardstanding to rear garden to facilitate and provide level access

    20 Jul 2026 Full applications
  • 63 Ardanlee, Ballynagard, Londonderry, BT48 8RR

    Single storey rear extension to dwelling

    25 Mar 2026 Full applications
  • LA11/2026/0534/F Awaiting decision

    89 Norburgh Park Londonderry BT48 0RG

    Rear single storey extension and access ramp to dwelling

    16 Jul 2026 Full applications
  • LA11/2026/0535/F Awaiting decision

    3 Glendon Park Altnagelvin Londonderry BT47 5XU

    Erection of single storey rear extension and front porch with interior alterations, addition of three dormer windows to the front and one to the rear to create first floor. Erection of single storey detached garage to rear.

    16 Jul 2026 Full applications
  • 61 Limavady Road, Londonderry, BT47 6LR

    Proposed Single Storey Side and Rear Extension, Extension of First Floor and External Alterations to Dwelling

    6 Mar 2026 Full applications