Skip to content
PlanIndex Get alerts
Menu

Planning application

26/01150/LDCP

21 Knoll Road Sidcup Kent DA14 4QT

Awaiting decision Bexley Lawful Development Certificate-Proposed

Proposal

Lawful development certificate (proposed) for the conversion of roof space including hip to gable enlargement, rear dormer extension and rooflights to front and rear roof slope.

As published by the council, reference 26/01150/LDCP

Timeline

Dates from the published record

  1. 11 Jun 2026

    Received by Bexley

  2. 15 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Bexley 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.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 26/01149/FUL Awaiting decision

    21 Knoll Road Sidcup Kent DA14 4QT

    Erection of a single storey rear and side extension

    11 Jun 2026 6m away Full applications
  • 14/01389/FUL Granted

    Merton Court School 38 Knoll Road Sidcup Kent DA14 4QU

    Proposal under Section 73 of The Town and Country Planning Act 1990 regarding a two storey rear extension, replacing existing part two/part single storey extension approved under planning permission 12/00958/FUL to allow removal of BREEAM assessment condition.

    23 Jul 2014 65m away Full applications
  • 12/00958/FULMIN Granted

    Merton Court School 38 Knoll Road Sidcup Kent DA14 4QU

    Minor amendments being change of material to windows at first floor level; addition/replacement of ground floor canopy and addition/replacement of doors to classrooms 5 and 6; raising of eaves/gutter/roof ridge to south elevation; removal of ground floor windows to classrooms 3, 6 and 9; addition of an external staircase and canopy to north elevation, pursuant to planning permission 12/00958/FUL relating to a two storey rear extension, replacing existing part two/part single storey extension.

    25 Apr 2014 65m away Amendments
  • 26/00577/LDCP Granted

    47 Knoll Road Sidcup Kent DA14 4QT

    Lawful Development Certificate (Proposed) for the conversion of garage to habitable room with alteration of fenestration to side/rear ground floor elevation.

    20 Mar 2026 89m away Lawful development
  • 25/02319/S211 Awaiting decision

    6 Old Forge Way Sidcup Kent DA14 4QL

    Works to various trees within Old Forge Way Conservation Area.

    10 Nov 2025 127m away Trees
  • 18/01144/S211 Decided

    10 Old Forge Way Sidcup Kent DA14 4QL

    Works to trees within a Conservation Area being, crown reduction of one Oak tree in rear garden and pruning of one Yew and Leyland Cypress.

    11 May 2018 164m away Trees

In Bexley

  • 26/01110/LDCP Granted

    106 Long Lane Bexleyheath Kent DA7 5AW

    Lawful Development Certificate (Proposed) for the conversion of roof space including rear L-shaped dormer extension.

    4 Jun 2026 Lawful development
  • 26/01099/LDCP Granted

    41 Sherbrooke Close Bexleyheath Kent DA6 7EQ

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

    3 Jun 2026 Lawful development
  • 26/01055/LDCP Granted

    48 Hythe Avenue Bexleyheath Kent DA7 5NU

    Lawful Development Certificate (Proposed) for the conversion of existing side garage and WC to habitable space.

    27 May 2026 Lawful development
  • 26/01464/LDCP Awaiting decision

    7 Stephen Road Bexleyheath Kent DA7 6EF

    Lawful Development Certificate (Proposed) for the siting of a mobile home for ancillary use to the main dwellinghouse.

    27 Jul 2026 Lawful development
  • 26/01074/LDCP Granted

    49 Hatherley Road Sidcup Kent DA14 4BB

    Lawful Development Certificate (Proposed) for the erection of a single storey rear extension following demolition of existing rear lean to.

    1 Jun 2026 Lawful development