28 Portland Avenue Sidcup Kent DA15 9HA

1. 3 Oct 2025

   Received by Bexley

2. 10 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 November 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Bexley took a median of 56 days over the applications it decided in the last year.

This application is with Bexley for determination, against a statutory target of eight weeks. Over the last year Bexley decided lawful development applications in a median of 56 days. More in our guide to how long planning decisions take.

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.

• 3 Sherwood Park Avenue Sidcup Kent DA15 9HN

  18/01506/GPDE Submitted 31 May 2018 100 yards away

  The erection of a single storey rear extension, which would extend beyond the rear wall of the dwelling by 3 metres, for which the maximum height (including roof lantern) would be 3 metres, and for which the height of the eaves would be 2.8 metres. The total extension (including previous enlargements) would extend beyond the rear wall of the original dwelling by 6 metres, for which the maximum height of the total enlargement will be 3 metres, and for which the height of the eaves would be 2.8 metres.

  Granted Prior approval Extension Windows or glazing 7 docs
  Small domestic

• 53 Sherwood Park Avenue Sidcup Kent DA15 9HN

  17/02996/FUL Submitted 17 Nov 2017 100 yards away

  Vehicular Access

  Granted Full applications 3 docs

• 117 Wellington Avenue Sidcup Kent DA15 9HB

  26/00499/FUL Submitted 10 Mar 2026 100 yards away

  Erection of a single storey rear extension.

  Granted Full applications Extension 9 docs
  Small domestic

• 55 Sherwood Park Avenue Sidcup Kent DA15 9HN

  18/00848/FUL Submitted 26 Mar 2018 100 yards away

  Vehicular access

  Granted Full applications 3 docs

• 125 Wellington Avenue Sidcup Kent DA15 9HB

  21/03091/FUL Submitted 7 Oct 2021 100 yards away

  Demolition of conservatory and erection of single storey rear extension

  Granted Full applications Extension Demolition 5 docs
  Small domestic

• 123 Wellington Avenue Sidcup Kent DA15 9HB

  14/01173/GPDE Submitted 20 Jun 2014 100 yards away

  The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 3.5 metres, and for which the height of the eaves would be 2.4 metres.

  Granted Prior approval Extension 4 docs
  Small domestic

• 26/01366/LDCE Granted

  106 Bexley Road Erith Kent DA8 3SP

  Lawful Development Certificate (Existing) for commencement of works relating to 21/03064/FULM.

  Received 10 Jul, published by the council 25 Jul 2026 Lawful development
• 26/00700/LDCE Granted

  45 Braundton Avenue Sidcup Kent DA15 8EN

  Lawful Development Certificate (Existing) for the continued use of the premises as a HMO for up to 6 occupants.

  Received 9 Apr, published by the council 25 Jul 2026 Lawful development
• 26/01254/LDCP Granted

  31 Blackfen Road Sidcup Kent DA15 8QD

  Lawful Development Certificate (Proposed) for the erection of a single storey detached outbuilding to rear garden.

  Received 26 Jun, published by the council 25 Jul 2026 Lawful development
• 26/01251/LDCP Granted

  28 Sheridan Road Belvedere Kent DA17 5AR

  Lawful Development Certificate (Proposed) for the conversion of roof space involving alterations to existing roofline, including a rear dormer extensions and rooflights to front roofslope.

  Received 25 Jun, published by the council 25 Jul 2026 Lawful development
• 26/01248/LDCP Granted

  152 Howard Avenue Bexley Kent DA5 3AX

  Lawful Development Certificate (Proposed) for the conversion of roof space including rear dormer extension and rooflights to front roof slope.

  Received 25 Jun, published by the council 25 Jul 2026 Lawful development