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Planning application

DC/25/142398

80 LOCK CHASE, LONDON, SE3 9HA

Granted Lewisham Householder Application

Proposal

The demolition and construction of a single-storey side extension at 80 Lock Chase,SE3.

As published by the council, reference DC/25/142398

Timeline

Dates from the published record

  1. 10 Dec 2025

    Received by Lewisham

  2. 16 Jan 2026

    Validated

    Checked as complete and ready for consideration.

  3. 19 Mar 2026

    Decision issued: Granted

  4. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About householder applications

How this application type works

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

Nearby applications

Within 500 metres

  • DC/19/114376 Granted

    28 LOCK CHASE, LONDON, SE3 9HA

    Installation of replacement white aluminium direct fix casement windows fitted in timber sub-frames in the rear elevation at Upper Flat, 28 Lock Chase, London, SE3 9HA.

    21 Oct 2019 0m away Full applications
  • DC/26/144206 Granted

    70 LOCK CHASE, LONDON, SE3 9HA

    T1 - Acer negundo (o/s 74) - reduce laterals and crown lift 14m in height. No reduction to height. Reduce laterals by 2m from 8m to 6m on all compass points. A mature Acer negundo standing close to the front of the property opposite no. 74. The tree has extensive lateral limb overhanging the property and the highway. Lateral reduction will reduce end-weight on the longer limbs, improving the structural balance of the crown, and crown lifting will give clearance above the path/parking area and provide better light to the building below. T2 - Acer negundo (o/s 66)) - crown thin and remove dead limbs 9m in height. Crown thin by 20 %. A second Acer negundo positioned opposite no. 66. There is a quantity of deadwood within the crown and the canopy is dense. A light crown thin and removal of all deadwood >25mm will improve light penetration through the crown, reduce wind sail, and remove the risk of falling deadwood over the path beneath. T3 - Walnut - crown reduce 16m in height. Reduce height by 3m from 16m to 13m. Reduce laterals by 2m from 8m to 6m on all compass points. A semi-mature Walnut on the western boundary of the garden. The tree has been previously reduced. Works will retain the established reduction points to maintain the existing crown shape and form, keeping the tree in proportion to its position and reducing end-weight on regrowth from previous cuts. T5 - Rowan ? Remove dead limbs 9m in height. A Rowan situated centrally in the rear garden. The upper portions of the tree show clear dieback. Works are to reduce the crown back to live growth, removing the dead tips and encouraging healthy regrowth from the remaining live framework, prolonging the safe and useful life of the tree.

    2 Jun 2026 0m away Trees
  • DC/19/114063 Granted

    70 LOCK CHASE, LONDON, SE3 9HA

    REAR: ONE Walnut (T1) HEIGHT REDUCTION by 4m from 15m to 11m & LATERAL REDUCTION by 4m from 11m to 7m. Reason: to reduce shade to properties on Quentin Road.

    30 Sep 2019 0m away Trees
  • DC/26/144385 Granted

    28 LOCK CHASE, LONDON, SE3 9HA

    ONE Acacia - Yellow - CROWN REDUCTION Tree height at 14mt to be reduced by 3mt to 11mt - tree width at 10mt to be reduced by 2mt to 8mt - thin canopy by 20% . The tree exhibits a co-dominant stem structure. The proposed reduction is intended to reduce end-weight and wind loading, thereby lowering biomechanical stress at the stem unions.

    17 Jun 2026 0m away Trees
  • DC/25/142356 Awaiting decision

    82 LOCK CHASE, LONDON, SE3 9HA

    Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) Class A of Schedule 2, Part 1, of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the alteration to part of the front elevation fenestration, replacing the existing roller shutter with a wall infill and two ground-floor windows reflecting the first-floor window arrangement.

    8 Dec 2025 0m away Lawful development
  • DC/26/143036 Awaiting decision

    87 QUENTIN ROAD, LONDON, SE13 5DG

    Construction of a single storey extension to the rear, together with a loft conversion including roof extensions in the rear roof slopes with steel cladding and the installation of windows; alterations to rear fenestration; and removal of existing rear render to reinstate original brickwork and all associated works at 87 Quentin Road SE13.

    18 Feb 2026 35m away Householder

In Lewisham

  • DC/26/144214 Refused

    54A ALLERFORD ROAD, LONDON, SE6 3DF

    Erection of a single-storey rear extension, roof extensions including side/rear dormer structures and rooflights, installation of a front entrance canopy, and associated internal and external alterations at 54A Allerford Road SE6.

    2 Jun 2026 Householder
  • DC/26/143542 Granted

    163 ALGERNON ROAD, LONDON, SE13 7AP

    Refurbishment and extension of the dwellinghouse, including the construction of a lower ground floor rear extension with rear terrace above and front lightwell, alterations to the existing rear roof extension, replacement windows, doors and roof covering, installation of roof mounted solar panels, and an air source heat pump at 163 Algernon Road, SE13 and associated front garden alterations including boundary treatment and refuse storage.

    30 Mar 2026 Householder
  • DC/26/144235 Granted

    34 EWHURST ROAD, LONDON, SE4 1AQ

    Construction of a single storey, ground floor rear and infill extension at 34 Ewhurst Road, SE4.

    3 Jun 2026 Householder
  • DC/26/144148 Granted

    79 WHITEFOOT LANE, BROMLEY, BR1 5SA

    Covering up existing red brick with sand and cement render on the external facade at 79 Whitefoot Lane, BR1.

    27 May 2026 Householder
  • DC/26/144186 Granted

    18 MICHELDEVER ROAD, LONDON, SE12 8LX

    Installation of replacement double glazed windows in the front elevation at 18 Micheldever Road SE12.

    29 May 2026 Householder