9 Penryn Street London NW1 1RL

1. 23 Mar 2026

   Received by Camden

2. 24 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 23 Apr 2026

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Camden granted permission on 23 April 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 9 Penryn Street London Camden NW1 1RL

  2026/0365/P Submitted 30 Jan 2026 0m away

  Single story ground floor rear extension and new rear windows at ground floor level.

  Granted Householder Extension Windows or glazing 6 docs
  Domestic

• 7 Penryn Street London NW1 1RL

  2014/4767/P 9m away

  Replacement of rear ground floor extension with a full-width, single storey extension, including replacement of rear window.

  Withdrawn Full applications Extension Windows or glazing
  Small domestic

• 7 Penryn Street, London, NW1 1RL

  2015/3183/P 9m away

  Erection of single storey rear extension.

  Granted Full applications Extension
  Small domestic

• 26 Medburn Street London NW1 1RH

  2024/2102/L 17m away

  Erection of single storey infill rear extension, replacement of existing rooflight, internal and external alterations to existing rear extension.

  Refused Heritage and listed buildings Extension Loft or dormer
  Small domestic

• 26 Medburn Street London NW1 1RH

  2024/1213/P 17m away

  Erection of single storey infill rear extension, replacement of existing rooflight, external alterations to existing rear extension.

  Refused Full applications Extension Loft or dormer
  Small domestic

• 26 Medburn Street London NW1 1RH

  2024/4200/L 17m away

  Internal and external alterations, replacement of existing rooflight and new sash window to existing extension.

  Granted Heritage and listed buildings Extension Loft or dormer +1

• 2026/3669/P Awaiting decision

  64 Westcroft Close London NW2 2RR

  Demolition of existing conservatory and erection of a single storey rear extension.

  26 Aug 2026 Lawful development
• 2026/3405/P Granted

  Flat A and Flat B 23 Ravenshaw Street London NW6 1NP

  Amalgamation of Flat 23A and Flat 23B to form one dwellinghouse (Use Class C3), including, insofar as required, the change of use of Flat 23B from a small house in multiple occupation (Use Class C4) to a dwellinghouse (Use Class C3), together with removal of an internal blockwork partition wall.

  3 Aug 2026 Lawful development
• 2026/3591/P Awaiting decision

  22 Ulysses Road London NW6 1EE

  Erection of an outbuilding within rear garden.

  21 Aug 2026 Lawful development
• 2026/3566/P Awaiting decision

  41 & 43 King Henry's Road London NW3 3QR

  Subdivision and use of the buildings as two separate residential dwellings.

  19 Aug 2026 Lawful development
• 2026/3527/P Awaiting decision

  303 Flat Ground Floor Rear Studio West End Lane London Camden NW6 1RD

  Use of ground floor studio flat as single dwelling unit (Class C3)

  18 Aug 2026 Lawful development