5-6 Underhill Street London NW1 7HS

This site has had 7 applications since 2018: 6 approved, 0 refused.

• 2026/1780/P Awaiting decision

  5-6 Underhill Street London NW1 7HS

  Change of use of ground floor rear office (Class E) unit to residential (Class C3) for the provision of 3no. self-contained residential units; minor alterations to fenestration at rear.

  Submitted 4 May 2026 Full applications
• 2025/2776/P Granted

  5-6 Underhill Street London NW1 7HS

  Details pursuant to Condition 5 (Ground Floor Window Details) of planning permission 2024/5382/P (dated 18/06/2025) for the 'Change of use of ground floor front office (Class E) unit to residential (Class C3) for the provision of two self-contained residential units'.

  Decided 9 Jul 2025 Full applications
• 2024/5382/P Granted

  5-6 Underhill Street London NW1 7HS

  Change of use of ground floor front office (Class E) unit to residential (Class C3) for the provision of two self-contained residential units.

  Decided 18 Jun 2025 Full applications
• 2024/1314/P Granted

  5-6 Underhill Street London NW1 7HS

  Change of use of second floor office space (Class E) to residential (Class C3) for the provision of a new self-contained residential unit.

  Decided 11 Sep 2024 Full applications
• 2022/5582/P Granted

  5 - 6 Underhill Street London NW1 7HS

  Conversion of two office suites on the second floor (Class E) into two self-contained flats (Class C3) with ancillary amenity space, new window and PV solar panels.

  Decided 1 Dec 2023 Full applications
• 2017/4332/P Granted

  5-6 Underhill Street LONDON NW1 7HS

  Variation to condition 3 of planning permission 2015/0034/P dated 10/03/2016, for extensions and alterations to the existing building including erection of a single storey extension to the roof fronting Underhill Street to provide 1 x 3 bed self-contained flat (Class C3 use); namely to include increase in the height of the extension by 0.17m, increase in footprint, installation of new windows in the southwestern side elevation and alterations to the design and fenestration of the single storey extension at roof level.

  Decided 29 Aug 2018 Full applications

1. 4 Feb 2019

   Received by Camden

2. 18 Feb 2019

   Validated

   Checked as complete and ready for consideration.

3. 28 Nov 2019

   Decision issued: Granted Subject to a Section 106 Legal Agreement

4. 22 Jul 2026

   Added to PlanIndex

5. 17 Sep 2026

   Status changed to FINAL DECISION

   Previously Final Decision.

• 2015/0034/P Granted

  5 Underhill Street London NW1 7HS

  Extensions and alterations to the existing building including erection of a single storey extension to the roof fronting Underhill Street to provide 1 x 3 bed self-contained flat (Class C3 use) with external roof terrace and metal privacy screen, erection of two storey lift shaft to the rear at first and second floor level, installation of external fire escape staircase from ground to second floor level, alterations to the ground floor front elevation to create a new ground floor residential entrance and office entrance fronting Underhill Street, replacement of ground floor window openings with doors to bin store area and office storage area, and installation of roof light on the roof of the single storey front/side extension of the existing office building (Class B1 use).

  Decided 10 Mar 2016 Full applications
• 2017/4332/P Granted

  5-6 Underhill Street LONDON NW1 7HS

  Variation to condition 3 of planning permission 2015/0034/P dated 10/03/2016, for extensions and alterations to the existing building including erection of a single storey extension to the roof fronting Underhill Street to provide 1 x 3 bed self-contained flat (Class C3 use); namely to include increase in the height of the extension by 0.17m, increase in footprint, installation of new windows in the southwestern side elevation and alterations to the design and fenestration of the single storey extension at roof level.

  Decided 29 Aug 2018 Full applications

Camden granted permission on 28 November 2019, 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.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 5-6 Underhill Street LONDON NW1 7HS

  2017/4332/P 50 yards away

  Variation to condition 3 of planning permission 2015/0034/P dated 10/03/2016, for extensions and alterations to the existing building including erection of a single storey extension to the roof fronting Underhill Street to provide 1 x 3 bed self-contained flat (Class C3 use); namely to include increase in the height of the extension by 0.17m, increase in footprint, installation of new windows in the southwestern side elevation and alterations to the design and fenestration of the single storey extension at roof level.

  Granted Full applications Extension Windows or glazing
  Small domestic

• 5-6 Underhill Street London NW1 7HS

  2024/5382/P 50 yards away

  Change of use of ground floor front office (Class E) unit to residential (Class C3) for the provision of two self-contained residential units.

  Granted Full applications

• 5-6 Underhill Street London NW1 7HS

  2026/1780/P Submitted 4 May 2026 50 yards away

  92% historically approved · decision due ~30 Jun

  Change of use of ground floor rear office (Class E) unit to residential (Class C3) for the provision of 3no. self-contained residential units; minor alterations to fenestration at rear.

  Awaiting decision Full applications Windows or glazing 14 docs

• 5-6 Underhill Street London NW1 7HS

  2024/1314/P 50 yards away

  Change of use of second floor office space (Class E) to residential (Class C3) for the provision of a new self-contained residential unit.

  Granted Full applications

• 5-6 Underhill Street London NW1 7HS

  2025/2776/P 50 yards away

  Details pursuant to Condition 5 (Ground Floor Window Details) of planning permission 2024/5382/P (dated 18/06/2025) for the 'Change of use of ground floor front office (Class E) unit to residential (Class C3) for the provision of two self-contained residential units'.

  Granted Full applications Windows or glazing

• 5 Underhill Street London NW1 7HS

  2015/0034/P 50 yards away

  Extensions and alterations to the existing building including erection of a single storey extension to the roof fronting Underhill Street to provide 1 x 3 bed self-contained flat (Class C3 use) with external roof terrace and metal privacy screen, erection of two storey lift shaft to the rear at first and second floor level, installation of external fire escape staircase from ground to second floor level, alterations to the ground floor front elevation to create a new ground floor residential entrance and office entrance fronting Underhill Street, replacement of ground floor window openings with doors to bin store area and office storage area, and installation of roof light on the roof of the single storey front/side extension of the existing office building (Class B1 use).

  Granted Full applications Extension Loft or dormer +1
  Small domestic

• 2026/1139/P Granted

  25 John Street London WC1N 2BS

  Alterations to design of conservatory, windows and doors approved under planning permission 2024/0312/P dated 06/08/2024.

  Received 26 Mar, published by the council 24 Jul 2026 Amendments
• 2026/4266/P Awaiting decision

  Unit 3A Camden Wharf London 28 Jamestown Road NW1 7BY

  Variation of the planning permission dated 15.3.1999 (Registered No PE9700702R3) for the redevelopment of the eastern part of the site by the erection of a four-storey building for mixed A1, A3 and B1 and the retention of the lock-keepers cottage as a Canal Information Centre with ancillary retail/ cafe comprising alterations to the elevations, fenestration, shopfront, balustrading, terraces, roof plant and the omission of the approved canopy over the pedestrian area as well as the discharging of part of condition 1 of the said planning permission relating to approval of details of balustrades, shopfronts, the canopy attached to the commercial building and any structure related to it.

  Received 30 Sep, published by the council 6 Oct 2026 Amendments
• 2026/3366/P Granted

  Flat Lower Ground Floor 133 King Henry's Road London NW3 3RD

  Variation of condition 2 (approved plans) of planning permission 2025/1032/P dated 23/04/2025 (which amended 2023/5117/P dated 22/03/2024 (for: Erection of single storey rear extension at lower ground floor, new windows to front and side elevations and new front door) NAMELY, changes to front elevation window and materials

  Received 6 Aug, published by the council 22 Aug 2026 Amendments
• 2026/4223/P Awaiting decision

  6 Conybeare London NW3 3SD

  Variation of Condition 2 (approved plans) of planning permission ref. 2022/2870/P, dated 13/12/2022, for the erection of a single-storey roof extension and internal roof terrace to the front part of the building, namely to regularise amendments to the approved scheme.

  Received 29 Sep, published by the council 6 Oct 2026 Amendments
• 2026/4045/P Granted

  234 - 240 Grafton Road London NW5 4NS

  Non-material amendment to planning permission 2024/4574/P granted 21/01/2026 for 'Erection of mansard roof extension to accommodate 1 x one bedroom and 1 x two bedroom dwellings; erection of a part one part two storey semi-detached one bedroom dwelling within rear garden to Dale Road; new cycle storage within rear garden, installation of 1 x ASHP in rear garden and 2 x ASHP on mansard roof of terrace, alterations to front boundary treatment.' namely to amend windows on the rear elevation of the existing building.

  Received 18 Sep, published by the council 24 Sep 2026 Amendments