Sentinel House 193 - 197 Old Marylebone Road London W1H 4AD

1. 30 May 2007

   Received by Westminster

2. 26 Jun 2007

   Decision issued: Application Permitted

3. 20 Aug 2026

   Added to PlanIndex

Westminster granted permission on 26 June 2007, 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.

• Sentinel House 16 Harcourt Street London W1H 4AD

  07/09566/CLEUD Submitted 2 Nov 2007 0m away

  Use of the sixth floor as offices (Class B1).

  Granted Lawful development 4 docs

• Sentinel House 16 Harcourt Street London W1H 4AD

  06/04937/FULL Submitted 22 Jun 2006 0m away

  Retention of three air conditioning condenser units and installation of one emergency generator within an existing plant enclosure at sixth floor roof level.

  Granted Full applications 8 docs

• 12 - 14 Harcourt Street London W1H 4HD

  06/06031/ADFULL Submitted 28 Jul 2006 46m away

  Details of rolled lead roof to approved extension pursuant to Condition 4 of planning permission dated 08 June 2006 (RN: 06/00236).

  Granted Full applications Extension 2 docs

• 12 - 14 Harcourt Street London W1H 4HD

  26/02158/ADV Submitted 31 Mar 2026 46m away

  85% historically approved · decision due ~26 May

  Display of two non-illuminated fascia signs measuring 0.31m x 1.98m and 0.46m x 3m. [Linked to 26/02157/FULL]

  Awaiting decision Advertising 1 doc

• 12 - 14 Harcourt Street London W1H 4HD

  26/02157/FULL Submitted 31 Mar 2026 46m away

  87% historically approved · decision due ~26 May

  Extension of and improvements to the existing ground floor terrace to the rear, modification to entrances, installation of security access gate, other associated external works and the installation of new signage. [Linked to 26/02158/ADV]

  Awaiting decision Full applications Extension 1 doc

• 12 - 14 Harcourt Street London W1H 4HD

  06/00236/FULL Submitted 12 Jan 2006 46m away

  Extension of rear second and third floors to provide additional office space (Class B1) and creation of a terrace area to the rear and side of the first floor. Installation of three air conditioning units to the rear first floor level.

  Granted Full applications Extension 11 docs

• 26/05961/TCA Awaiting decision

  34 Marlborough Place London NW8 0PD

  Front garden: plum (T1) - fell. Reason: to allow more light into the garden.

  1 Sep 2026 Trees
• 26/05966/TPO Awaiting decision

  7 Abbey Road London NW8 9AA

  1 x lime (front): Proposed crown reduction: 20%. Thin canopy interior by 10% for light penetration. Clear all branches within 2m of building façade. Selected deadwood removal throughout.Trimming to address encroachment on street light and signage - remove epicormic growth from lower trunk from ground level to crown break at about 4m from ground level.

  1 Sep 2026 Trees
• 26/05927/TCA Awaiting decision

  Little Venice Gardens Randolph Road London W9 1AN

  Description of Proposed Tree Works Location: Little Venice Gardens, Randolph Road, London, W9 1AN Area: Maida Vale Conservation Area T1 ? Birch (Betula spp.) ? western side of tennis court Located within Little Venice Gardens on the western side of the tennis court when viewed from Randolph Road. Reduce the lateral crown spread by approximately 2m from the tennis-court side, cutting back the overhanging branches to suitable growth points. Maintain a balanced and natural crown form and retain sufficient healthy furnishing growth throughout the remaining crown. T2 ? Birch (Betula spp.) ? western side of tennis court Located adjacent to T1 on the western side of the tennis court when viewed from Randolph Road. Reduce the lateral crown spread by approximately 2m from the tennis-court side, cutting back the overhanging branches to suitable growth points. Maintain a balanced and natural crown form and retain sufficient healthy furnishing growth throughout the remaining crown. T3 ? Prunus ? subhirtella ?Pissardii? (Prunus cerasifera ?Pissardii?) ? rear of No. 19 Located to the rear of No. 19 Randolph Road, adjacent to the tennis courts. Reduce the overall crown by approximately 2.5m, reducing the height and lateral spread evenly throughout the crown to suitable growth points. Maintain the natural form, balance and structural integrity of the tree whilst retaining suitable healthy furnishing growth. General specification: All works are proposed as routine arboricultural maintenance to retain the trees at a suitable size for their location and to manage crown growth extending towards the tennis court. All pruning cuts will be made to suitable growth points in accordance with good arboricultural practice. The works will be carried out sympathetically, retaining the natural form and structural framework of each tree and avoiding unnecessarily large pruning wounds.

  31 Aug 2026 Trees
• 26/05897/TCA Awaiting decision

  71 Lothrop Street London W10 4JD

  (T1) - Silver Birch(Betula pendula) -reduce crown by 30%(2m) to suitable growth points -reduce lateral branch spread by up to 1.75m to match, shape and balance -crown lift removing lowest inbound branches to main trunk union All works are for routine maintenance.

  28 Aug 2026 Trees
• 26/05878/TPO Decided

  16 Westbourne Terrace London W2 3UW

  1 x London plane: crown lift low hanging twiggy growth to 6m and cut back from property to give a clearance of 5m.

  27 Aug 2026 Trees