11 Adelphi Terrace WC2N 6BJ

1. 5 Jun 2026

   Received by Westminster

2. 10 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 11 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 5 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Westminster took a median of 61 days over the applications it decided in the last year.

This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

This page mirrors an entry on the statutory planning register that Westminster is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• 11 Adelphi Terrace WC2N 6BJ

  26/01742/ADFULL Submitted 18 Mar 2026 0m away

  87% historically approved · decision due ~13 May

  Detailed site investigation of contaminated Land, pursuant to condition 4 of planning permission dated 9th March 2026 (RN 25/07872/FULL)

  Awaiting decision Full applications 8 docs

• 11 Adelphi Terrace WC2N 6BJ

  26/04713/ADLBC Submitted 14 Jul 2026 0m away

  89% historically approved · decision due ~8 Sep

  Details of an archaeological written scheme of investigation pursuant to Condition 3 a) of listed building dated 9th March 2026 (RN:25/07873/LBC)

  Decided

• 11 Adelphi Terrace WC2N 6BJ

  26/04467/ADFULL Submitted 6 Jul 2026 0m away

  87% historically approved · decision due ~31 Aug

  Details of desktop study and site investigation of contaminated land, pursuant to condition 4 (phase 1, 2 and 3) of planning permission dated 9 March 2026 (RN 25/07872/FULL).

  Awaiting decision Full applications 12 docs

• 11 Adelphi Terrace WC2N 6BJ

  25/07873/LBC Submitted 30 Oct 2025 2m away

  90% historically approved · decision due ~25 Dec

  Connection of 11 Adelphi Terrace to 2-3 Robert Street at lower basement level, installation of plant, installation of louvres in window frames at lower basement level, creation of new door opening into Lower Robert Street, removal of water tank from roof and removal of rooflights, installation of two vents to roof and vent grille to lightwell elevation. (Linked with 25/07872/FULL)

  Awaiting decision Heritage and listed buildings Loft or dormer Windows or glazing 25 docs

• 11 Adelphi Terrace WC2N 6BJ

  25/07872/FULL Submitted 30 Oct 2025 2m away

  87% historically approved · decision due ~25 Dec

  Connection of 11 Adelphi Terrace to 2-3 Robert Street at lower basement level, installation of plant, installation of louvres in window frames at lower basement level, creation of new door opening into Lower Robert Street, removal of water tank from roof and removal of rooflights, installation of two vents to roof and vent grille to lightwell elevation, in connection with use as a health spa. (Linked with 25/07873/LBC)

  Awaiting decision Full applications Loft or dormer Windows or glazing 27 docs

• 2 - 3 Robert Street London WC2N 6BH

  26/04530/AD7 Submitted 8 Jul 2026 13m away

  89% historically approved · decision due ~2 Sep

  Renewal to display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6m x 0.45m.

  Decided