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Planning application

21/00927/LDCP

27 Thirlmere Road London SW16 1QW

Refused Lambeth Certificate of Lawful Use proposed

Proposal

Certificate of Lawfulness (proposed) with respect to the erection of a single storey ground floor rear extension.

As published by the council, reference 21/00927/LDCP

Timeline

Dates from the published record

  1. 5 Mar 2021

    Received by Lambeth

  2. 7 Apr 2021

    Validated

    Checked as complete and ready for consideration.

  3. 20 May 2021

    Decision issued: Refuse Permission

  4. 25 Jul 2026

    Added to PlanIndex

What refusal means

The process from here

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

  • 21/01576/TCA Decided

    25 Thirlmere Road London SW16 1QW

    Horse chestnut tree. See plan for location at rear of garden besides boundary wall. Proposed work to include pollarding the tree to the last pollard point where the knuckles show. The reason for the work is to keep the tree at the same size and to minimise the overshadowing to us and our neighbours.

    19 Apr 2021 12m away Trees
  • 21/01621/TCA Decided

    Ground Floor Flat 23 Thirlmere Road London SW16 1QW

    Lime Tree - to crown reduce back to previous reduction points to prevent unsafe growth. To cut back epicormic growth to previous pollard point. The tree branch coverage spans properties 23-21 Thirlmere and 21-23 Riggindale Roads.

    22 Apr 2021 23m away Trees
  • 26/00422/TCA Granted

    14 Rydal Road London SW16 1QN

    Rear Garden: T1 Ash tree FELL to ground level. Reason: tree causing damages to the walls and property due to being too large for area.

    10 Feb 2026 25m away Trees
  • 26/01482/TCA Granted

    25 Riggindale Road London SW16 1QL

    Rear Boundary: T1 twin stemmed Lime. Section fell to as close to ground level as practicable.

    14 May 2026 29m away Trees
  • 26/00917/FUL Granted

    8 Rydal Road London SW16 1QN

    Erection of a rear/side extension; replacement of existing timber rear canted bay window with timber framed double-glazing; insertion of a new window to the ground floor rear elevation; insertion of a high-level window to the southwest side.

    23 Mar 2026 45m away Full applications
  • 26/00512/TCA Granted

    23 Rydal Road London SW16 1QF

    Front Garden: T1 Lime. Re-Pollard by approximately 2m and remove dead branches.

    17 Feb 2026 66m away Trees

In Lambeth

  • 26/02152/LDCP Awaiting decision

    111 Hydethorpe Road London SW12 0JF

    Demolition of existing shed and erection of one single storey outbuilding in the rear garden

    23 Jul 2026 Lawful development
  • 26/00455/LDCP Granted

    129 Hydethorpe Road London SW12 0JF

    Application for Certificate of Lawful Development (Proposed) with respect to the erection of a rear dormer roof extension and installation of new rooflights to the front roof slope.

    12 Feb 2026 Lawful development
  • 26/01557/LDCP Granted

    6 Perran Road London SW2 3DL

    Application for a Certificate of Lawfulness (Proposed) with respect to the change of use of the property from dwelling house (Use Class C3) to small house in multiple occupation (HMO) (Use Class C4).

    22 May 2026 Lawful development
  • 26/01500/LDCP Granted

    126 Gipsy Road London SE27 9RE

    Application for a Certificate of Lawful Development (Proposed) with respect to erection of an L-shaped rear dormer roof extension and installation of 3 front roof lights.

    18 May 2026 Lawful development
  • 26/01999/LDCE Awaiting decision

    60 Brixton Road London SW9 6BS

    Application for a Certificate of Lawful Development (Existing) with respect to the continued existence of an elevated decking platform supported by adjoining walls above the roof terrace, together with safety railings to the outer edge, at Flat 2, 60 Brixton Road. Wooden decking replaced with composite decking as like for like maintenance. The submitted evidence details that the structure has been in place unchanged for 16 years.

    9 Jul 2026 Lawful development