Basement Level, 5 Lonsdale Square, London, N1 1EN

This site has had 2 applications since 2026: 0 approved, 2 refused.

• P2026/0325/FUL Refused

  Basement Level, 5 Lonsdale Square, London, N1 1EN

  Partial opening up of the rear elevation, partial opening of the existing chimney breasts and the opening of an existing wall. Conversion of the existing basement space to provide short term residential accomodation solely for the temporary use of the applicant (personal permission) (Listed building consent also submitted ref P2026/0324/LBC). (Listed Building Consent submitted under Ref: P2026/0324/LBC).

  Decided 26 Aug 2026 Full applications

1. 9 Feb 2026

   Received by Islington

2. 24 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. 26 Aug 2026

   Decision issued: Refusal of permission

• P2026/0325/FUL Refused

  Basement Level, 5 Lonsdale Square, London, N1 1EN

  Partial opening up of the rear elevation, partial opening of the existing chimney breasts and the opening of an existing wall. Conversion of the existing basement space to provide short term residential accomodation solely for the temporary use of the applicant (personal permission) (Listed building consent also submitted ref P2026/0324/LBC). (Listed Building Consent submitted under Ref: P2026/0324/LBC).

  Decided 26 Aug 2026 Full applications

1 later application on the register refers to this one:

• P2026/0325/FUL Refused

  Basement Level, 5 Lonsdale Square, London, N1 1EN

  Partial opening up of the rear elevation, partial opening of the existing chimney breasts and the opening of an existing wall. Conversion of the existing basement space to provide short term residential accomodation solely for the temporary use of the applicant (personal permission) (Listed building consent also submitted ref P2026/0324/LBC). (Listed Building Consent submitted under Ref: P2026/0324/LBC).

  Decided 26 Aug 2026 Full applications

Islington refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• Basement Level, 5 Lonsdale Square, London, N1 1EN

  P2026/0325/FUL Submitted 9 Feb 2026 50 yards away

  Partial opening up of the rear elevation, partial opening of the existing chimney breasts and the opening of an existing wall. Conversion of the existing basement space to provide short term residential accomodation solely for the temporary use of the applicant (personal permission) (Listed building consent also submitted ref P2026/0324/LBC). (Listed Building Consent submitted under Ref: P2026/0324/LBC).

  Refused Full applications 10 docs

• 3 Lonsdale Square, London, N1 1EN

  P2025/1876/TRE Submitted 1 Jul 2025 50 yards away

  100% historically approved · decision due ~13 Oct

  T1 - Diseased/ dying birch tree (12m) - take down to ground level This is a five day notice to remove a diseased/dying tree.

  Awaiting decision Trees 5 docs

• 3 Lonsdale Square, London, N1 1EN

  P2023/0198/LBC Submitted 19 Jan 2023 50 yards away

  Internal alterations and refurbishment to upgrade bathrooms and kitchens and installation of new floor finishes and fitted joinery.

  Granted Heritage and listed buildings 27 docs

• Flat A, 115 Richmond Avenue, London, N1 0LR

  P2019/3451/TRE Submitted 13 Nov 2019 50 yards away

  Rear garden Robinia pseudoacacia - Reduce canopy width by 20% (up to 3 metres) and reduce the overhang to other gardens. Remove low hanging/larger branches that are hanging directly into neighbouring gardens and over neighouring trees.

  Granted Trees 2 docs

• 11 Lonsdale Square, London, N1 1EN

  P2021/1626/FUL Submitted 4 Jun 2021 50 yards away

  Installation of metal safeguarding railings and gate are the rear of property. (Listed building consent also submitted ref:P2021/1646)

  Granted Householder 11 docs
  Domestic

• 11 Lonsdale Square, London, N1 1EN

  P2021/1646/LBC Submitted 4 Jun 2021 50 yards away

  Installation of metal safeguarding railings and gate are the rear of property. [Full plan application ref: P2021/1626 also submitted].

  Granted Heritage and listed buildings 3 docs

• P2026/1302/LBC Granted

  78 King's Cross Road, London, WC1X 9QG

  Internal works to include: layout reconfigurations; installation of mezzanine within southern courtroom; partial removal of joinery with the former courtrooms; new and replacement fittings, furnishings, ironmongery and lighting; refurbishment of existing doors, flooring, walls, joinery, and ceiling finishes; and associated internal works.

  Received 18 May, published by the council 25 Jul 2026 Heritage and listed buildings
• P2026/2457/COL Status unknown

  89 Steve Biko Road, London, N7 7JF

  Ceritification of Lawful Development (Proposed) for the change of use of a room

  Received 16 Sep, published by the council 18 Sep 2026 Heritage and listed buildings
• P2026/2429/LBC Awaiting decision

  40, Kingsway Place, London, EC1R 0LU

  Full interior renovation consisting of alteration of existing plasterboard and

  Received 14 Sep, published by the council 17 Sep 2026 Heritage and listed buildings
• P2026/2350/LBC Awaiting decision

  16 THORNHILL SQUARE LONDON N1 1BQ

  Install French oak herringbone parquet floor to principal rooms throughout, Ins

  14 Sep 2026 Heritage and listed buildings
• P2026/2296/LBC Awaiting decision

  88 St John Street, London, EC1M 4EH

  Enlarging opening between rear restaurant area and kitchen, reorganising the co

  11 Sep 2026 Heritage and listed buildings