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Planning application

17, Ailsa Road, Twickenham, TW1 1QJ

Refused Richmond upon Thames PA26/2041 Householder Application

Works: Extension Loft or dormer Demolition Small domestic

Read from the description, not a valuation. How we read the register

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Construction of a part single-storey, part two-storey rear and side extension following the demolition of the existing rear extension, side extension, and front garage. Ridgeline roof conversion featuring one front and one side conservation style rooflight. Installation of a swimming pool to the rear.

As published by the council, reference PA26/2041

Application record

Reference
PA26/2041
Type
Householder Application
Status
Decided
Decision
Refused As published: Refused Permission
Received
11 Jun 2026
Validated
15 Jun 2026
Decided
21 Jul 2026
Ward
St. Margarets & North Twickenham Ward [SMN]
Decision by
Delegated Decision Team Leader
Postcode
TW1 1QJ

Timeline

Dates from the published record

  1. 11 Jun 2026

    Received by Richmond upon Thames

  2. 15 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Decision issued: Refused Permission

  4. 26 Jul 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

37 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What this refusal means

Richmond upon Thames refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 21 Ailsa Road, Twickenham

    PA26/0304 Submitted 29 Jan 2026 50 yards away

    FRONT GARDEN G1 Mixed Species Cherry - Fell to ground level in order to facilitate new front boundary wall to be built. Cherry within group of shrubs and small diameter saplings.

    Granted Trees 3 docs
    Small domestic
  • 21 Ailsa Road, Twickenham

    PA26/0162 Submitted 19 Jan 2026 50 yards away

    Replacement front garden wall.

    Granted Householder 18 docs
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  • 21C Ailsa Road Twickenham TW1 1QJ

    21/1436/HOT Submitted 23 Apr 2021 50 yards away

    Demolition of old single storey prefabricated garage and construction of a proposed single storey side extension

    Granted Householder Extension Demolition 19 docs
    Small domestic
  • 13 Ailsa Road Twickenham Richmond Upon Thames TW1 1QJ

    05/T0272/TCA Submitted 19 Apr 2005 50 yards away

    T1 - Eucalyptus gunnii - Crown reduce by 30%

    Granted Trees
  • 23 Ailsa Road Twickenham TW1 1QJ

    PA26/0614 Submitted 24 Feb 2026 50 yards away

    Tree Number - T1 Tree Type - Magnolia Approx. Diameter at 1.5m - 0.4m Approx. Height - 9m Approx. Crown Spread Diameter - 13m Location - No.23 Service - Crown Reduction Work Required - Reduce height by up to 1.5m and lateral spread on all sides by up to 1.5m Reason - As per clients specification Priority Code - On Tree number - T2 Tree type - Robinia Location - No.23 Service - Remove hanging limb Work required - Remove x1 partially snapped limb Reason - as per clients specification Priority code - on Tree Number - T3 Tree Type - Robinia Approx. Diameter at 1.5m - 0.3m Approx. Height - 8m Approx. Crown Spread Diameter - 6m Location - No.23 Service - Section dismantle Work Required - Section dismantle tree to near ground level Reason - Tree is dead Priority Code - On

    Granted Trees 6 docs
  • 23 Ailsa Road Twickenham TW1 1QJ

    23/T0034/TCA Submitted 12 Jan 2023 50 yards away

    T1 Robinia pseudoacacia: Fell to ground level Reasons: V shape union largely decayed, poor form, tree has a limited public view and the life expectancy and the amenity is extremely low T2 Magnolia reduce by approx. 1.5m from height and width leaving a finished height and spread of approx. 4.5m - Reason: Routine maintenance

    Granted Trees 6 docs

In Richmond upon Thames

  • PA26/2361 Refused

    11, Waterloo Place, Richmond, TW9 1EB

    Single storey rear extension to replace existing rear extension.

    Received 6 Jul, published by the council 26 Jul 2026 Householder
  • PA26/2869 Refused

    60, Castelnau, London, SW13 9EX

    Improvements to the front elevation, replacement of the coach house, replacement of the rear extensions, first and second floor rear extension and new basement excavation.

    Received 18 Aug, published by the council 23 Aug 2026 Householder
  • PA26/2821 Granted

    192A, Sheen Lane, London, SW14 8LF

    Alterations to the existing dwelling, including enlarging existing window and door openings, replacement windows and doors, new rooflight openings, replacement rooflights in existing openings, rendering the external brickwork, installation of an air source heat pump, air conditioning unit and photovoltaic panels, installation of woodburner flue, removal of the brick chimney stack at roof level and replacement of a brick garden wall with a timber screen.

    Received 13 Aug, published by the council 23 Aug 2026 Householder
  • PA26/2256 Refused

    36A Cambridge Park Twickenham TW1 2JU

    Erection of a detached domestic garage to serve the existing dwelling, positioned toward the front/side of the plot and associated frontage boundary alterations including replacement wall/fence/hedging treatment.

    Received 29 Jun, published by the council 23 Aug 2026 Householder
  • PA26/2671 Granted

    30, The Avenue, Twickenham, TW1 1RY

    Demolition of garage, ground floor rear extension, ground floor side extension, new conservation rooflights to main roof and removal of one window.

    Received 31 Jul, published by the council 6 Aug 2026 Householder