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Planning application

5-6 Underhill Street LONDON NW1 7HS

Granted Camden 2017/4332/P Full applications

Works: Extension Windows or glazing Small domestic

Read from the description, not a valuation. How we read the register

Relates to 2015/0034/P

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

Proposal

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.

As published by the council, reference 2017/4332/P

Application record

Reference
2017/4332/P
Category
Full applications
Status
Final Decision
Decision
Granted As published: Granted Subject to a Section 106 Legal Agreement
Decided
29 Aug 2018
Postcode
NW1 7HS

Site history

Applications at this address on the Camden register

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
  • 2019/0652/P Granted

    5-6 Underhill Street London NW1 7HS

    Variation to condition 3 (approved plans) of planning permission ref 2017/4332/P dated 29/08/2019 (as a variation to planning permission ref 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 a self-contained flat), namely to allow an increase in height of the existing lift shaft by 0.5m, installation of a flank door on the side/rear elevation at second floor level to allow access to amended escape stairs fronting onto Underhill Street, alterations to fenestration on the front facade, and changes from a glass balustrade on the Underhill Street elevation to integral juliet balconies.

    Decided 28 Nov 2019 Amendments

Timeline

Dates from the published record

  1. 29 Aug 2018

    Decision issued: Granted Subject to a Section 106 Legal Agreement

  2. 22 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 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

1 later application on the register refers to this one:

  • 2019/0652/P Granted

    5-6 Underhill Street London NW1 7HS

    Variation to condition 3 (approved plans) of planning permission ref 2017/4332/P dated 29/08/2019 (as a variation to planning permission ref 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 a self-contained flat), namely to allow an increase in height of the existing lift shaft by 0.5m, installation of a flank door on the side/rear elevation at second floor level to allow access to amended escape stairs fronting onto Underhill Street, alterations to fenestration on the front facade, and changes from a glass balustrade on the Underhill Street elevation to integral juliet balconies.

    Decided 28 Nov 2019 Amendments

What this grant of permission means

Camden granted permission on 29 August 2018, 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

  • 5-6 Underhill Street London NW1 7HS

    2019/0652/P Submitted 4 Feb 2019 50 yards away

    Variation to condition 3 (approved plans) of planning permission ref 2017/4332/P dated 29/08/2019 (as a variation to planning permission ref 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 a self-contained flat), namely to allow an increase in height of the existing lift shaft by 0.5m, installation of a flank door on the side/rear elevation at second floor level to allow access to amended escape stairs fronting onto Underhill Street, alterations to fenestration on the front facade, and changes from a glass balustrade on the Underhill Street elevation to integral juliet balconies.

    Granted Amendments Extension Windows or glazing 12 docs
    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

In Camden

  • 2026/0990/P Refused

    1 Bleeding Heart Yard & 19 Greville Street London EC1N 8SJ

    Change of use from office space and restaurant use (Class E) and members club (Sui Generis) to affordable workspace and restaurant use (Class E) and 1 x residential unit on the third and fourth floors (Class C3). Erection of a two-storey roof extension across 19 Greville Street and 1 Bleeding Heart Yard, including alterations at second-floor level to the interior courtyard elevation, ground-floor fenestration changes, and a roof terrace for the associated residential unit.

    Received 26 Mar, published by the council 24 Jul 2026 Full applications
  • 2026/3044/P Granted

    London Irish Centre 50-52 Camden Square London NW1 9XB

    Details to discharge Condition 25 Part A (Air Quality Monitoring) of planning permission ref. 2020/1481/P dated 17/05/24 for 'Redevelopment of site to provide new and reconfigured community centre and ancillary residential accommodation (Class D1/ D2) involving alterations to retained buildings at No's. 50, 51 and 52 Camden Square including replacement of two storey 'link' building; demolition of Murray Street and Murray Mews buildings and replacement with part-three / part-four storey building (plus basement level) with second and third floor terraces and new entrance; associated landscaping and cycle parking'.

    Received 20 Jul, published by the council 2 Aug 2026 Full applications
  • 2026/4338/P Awaiting decision

    32 Willoughby Road London NW3 1RU

    Details to discharge condition 6 (tree protection methods) of planning permission 2025/4186/P granted 13/11/2025 for 'Demolition of existing two storey outrigger and replacement with part two-storey, part single storey rear extension, loft conversion with dormer and roof light to main roof at rear, new windows to flanking wall, replacement of existing windows and installation of a gate and fence to side'.

    Received 5 Oct, published by the council 9 Oct 2026 Full applications
  • 2026/4141/P Awaiting decision

    24 Endell Street London WC2H 9HQ

    Relocation of three air conditioning condenser units to first floor roof, construction of an acoustic enclosure and other associated works.

    Received 5 Oct, published by the council 9 Oct 2026 Full applications
  • 2026/3907/P Awaiting decision

    Flat 1 16 Lyndhurst Road London NW3 5NL

    External renovations to the front of the property, including works to the entry porch, steps, replacment front door, installation of metal railings to boundary wall and paving to front garden and erection of a glass roof to the side passage to create a bike shelter.

    Received 5 Oct, published by the council 9 Oct 2026 Full applications