Spencer House 9 - 11 Belsize Park Gardens London NW3 4JR

This site has had 6 applications since 2019: 5 approved, 0 refused.

• 2026/3168/P Awaiting decision

  Spencer House 9-11 Belsize Park Gardens London NW3 4JR

  Creation of balconies at first floor level above front entrance porticos, including the installation of metal railings and french doors.

  Submitted 5 Aug 2026 Full applications
• 2026/1263/P Granted

  Spencer House 9-11 Belsize Park Gardens London NW3 4JR

  Extension to rear of property at lower ground floor level, including associated lowering of rear section of lower ground floor level, alterations to fenestration, formation of balconies at ground and first floor level to rear, and alterations to front lightwell.

  Decided 25 Jun 2026 Full applications
• 2026/1259/P Granted

  Spencer House 9-11 Belsize Park Gardens London NW3 4JR

  Alterations and extensions to roof to form front, side and rear dormers, with front and rear balconies.

  Decided 14 Jul 2026 Full applications
• 2026/0261/P Granted

  Spencer House 9-11 Belsize Park Gardens London NW3 4JR

  Internal works involving the reconfiguration of the existing 17 flats and the reduction to 16 x self-contained residential units (Class C3).

  Decided 17 Mar 2026 Lawful development
• 2025/5123/P Granted

  Spencer House 9 - 11 Belsize Park Gardens London NW3 4JR

  Use of the 17 individual self-contained flats across the five floors as private residential units (Class C3).

  Decided 20 Jan 2026 Lawful development

1. 16 May 2019

   Received by Camden

2. 13 Jun 2019

   Decision issued: No Objection to Emergency Works (CA)

3. 22 Jul 2026

   Added to PlanIndex

4. 5 Sep 2026

   Status changed to FINAL DECISION

   Previously Final Decision.

Camden granted permission on 13 June 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.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• Spencer House 9-11 Belsize Park Gardens London NW3 4JR

  2026/1263/P Submitted 30 Mar 2026 50 yards away

  Extension to rear of property at lower ground floor level, including associated lowering of rear section of lower ground floor level, alterations to fenestration, formation of balconies at ground and first floor level to rear, and alterations to front lightwell.

  Granted Full applications Extension Windows or glazing 68 docs

• Spencer House 9-11 Belsize Park Gardens London NW3 4JR

  2026/1259/P Submitted 30 Mar 2026 50 yards away

  Alterations and extensions to roof to form front, side and rear dormers, with front and rear balconies.

  Granted Full applications Extension Loft or dormer 28 docs

• Spencer House 9-11 Belsize Park Gardens London NW3 4JR

  2026/3168/P Submitted 5 Aug 2026 50 yards away

  92% historically approved · decision due ~30 Sep

  Creation of balconies at first floor level above front entrance porticos, including the installation of metal railings and french doors.

  Awaiting decision Full applications Windows or glazing 16 docs

• Spencer House 9 - 11 Belsize Park Gardens London NW3 4JR

  2025/5123/P Submitted 12 Nov 2025 50 yards away

  Use of the 17 individual self-contained flats across the five floors as private residential units (Class C3).

  Granted Lawful development New dwelling 16 docs

• Spencer House 9-11 Belsize Park Gardens London NW3 4JR

  2026/0261/P Submitted 22 Jan 2026 50 yards away

  Internal works involving the reconfiguration of the existing 17 flats and the reduction to 16 x self-contained residential units (Class C3).

  Granted Lawful development New dwelling 16 docs
  Major scheme

• Flat 2 13 Belsize Park Gardens London NW3 4JG

  2010/4155/T 50 yards away

  REAR GARDEN: 1 x Tilia SP (Lime) - Remove Ivy from tree, Crown reduce to previous reduction points 25-30%

  Granted Trees

• 2026/4294/T Awaiting decision

  1 Boscastle Road London NW5 1EE

  REAR GARDEN: 1 x Ash (T1) - Lift crown by removing epicormic shoots from main stem and thin crown by approx. 20%. 1 x Yew (T2) - Lift crown to 1m by trimming low branches with hedge cutters. 1 x Beech (T3) - Lift crown by approx. 2m. FRONT GARDEN: 1 x Lime (T4) - Reduce main limbs to historic pollard points, approx. 7m from ground level.

  Received 6 Oct, published by the council 9 Oct 2026 Trees
• 2026/4358/T Awaiting decision

  Inverforth House North End Way London NW3 7EU

  DD 5 Day Notice REAR GARDEN: 1 x Unknown (T1 - Fell to ground level.

  Received 6 Oct, published by the council 9 Oct 2026 Trees
• 2026/4357/T Awaiting decision

  4 Lower Terrace London NW3 6RG

  DD 5 Day Notice REAR GARDEN: 1 x Japanese Pine (T1) - Fell to ground level.

  Received 5 Oct, published by the council 9 Oct 2026 Trees
• 2026/4206/T Granted

  Flat Ground And 1st Floor 184 Camden Road London NW1 9HG

  (TPO REF: S9-T11) FRONT GARDEN: 1 x Lime (Tilia x europaea) (T7) - Crown reduction 30%, 2m -3m taking back all round.

  Received 28 Sep, published by the council 30 Sep 2026 Trees
• 2026/4293/T Awaiting decision

  54 Dartmouth Park Road London NW5 1SN

  REAR GARDEN: 1 x Purple Plum (T1) - Reduce height by approx. 3m, reduce sides by approx. 1.5m to balance crown.

  Received 2 Oct, published by the council 9 Oct 2026 Trees