20 UNDERCLIFF ROAD, LONDON, SE13 7TT

1. 14 Oct 2026

   Received by Lewisham

2. 19 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 9 December 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Lewisham took a median of 55 days over the applications it decided in the last year.

This application is with Lewisham for determination, against a statutory target of eight weeks. Over the last year Lewisham's median decision took 55 days. More in our guide to how long planning decisions take.

The published feed does not state which type of application this is; the register entry on Lewisham's portal will say. Our guide explains the common types.

• 28 UNDERCLIFF ROAD, LONDON, SE13 7TT

  DC/26/144440 Submitted 19 Jun 2026 50 yards away

  84% historically approved · decision due ~15 Aug

  Installation of replacement windows and doors to the front and rear elevations to the flats at 28 Undercliff Road, SE13

  Awaiting decision Full applications New dwelling Windows or glazing 5 docs

• 1 SANDROCK ROAD, LONDON, SE13 7TS

  DC/26/142551 Submitted 25 Dec 2025 50 yards away

  Conversion of the property from a small scale house in multiple occupation (Use Class C4) to a large scale house in multiple occupation (Sui Generis Use Class), together with the construction of a roof extension at the rear roof slope, insertion of rooflights to the front roof slope, and all associated works at 1 Sandrock Road, SE13.

  Refused Full applications Extension Loft or dormer 10 docs

• 1 SANDROCK ROAD, LONDON, SE13 7TS

  DC/26/143983 Submitted 12 May 2026 50 yards away

  Application for a Lawful Development Certificate existing submitted under Section 191 of the Town & Country Planning Act 1990 (as amended) to establish that the lawful use of 1 Sandrock Road, SE13, is as a small house in multiple occupation for no more than six residents.

  Granted Lawful development 6 docs

• 1 SANDROCK ROAD, LONDON, SE13 7TS

  DC/25/141547 Submitted 23 Sep 2025 50 yards away

  The construction of a roof extension to the rear roofslope and installation of rooflights to the front roof slope at 1 Sandrock Road SE13.

  Withdrawn Full applications Extension Loft or dormer 7 docs

• 13 SANDROCK ROAD, LONDON, SE13 7TS

  DC/26/145465 Submitted 17 Sep 2026 50 yards away

  88% historically approved · decision due ~13 Nov

  Installation of replacement windows and doors with uPVC casement windows to the front, side and r...

  Awaiting decision Windows or glazing

• 1 SANDROCK ROAD, LONDON, SE13 7TS

  DC/26/144903 Submitted 30 Jul 2026 50 yards away

  Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the To...

  Granted 3 docs