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26 Holly Avenue Walton-On-Thames Surrey KT12 3AT

2026/2457Lawful Development Cert - ProposedAwaiting decision
Approximate location: the centre of the postcode, not the exact property.

Proposal

Hip-to-gable roof extension, rear dormer window and front rooflights to provide rooms in the roofspace and alterations to fenestration following removal of chimney stack.

Received
12 October 2026
Decision due
7 December 2026
Ward
Walton South Ward
  1. Received12 Oct
  2. Validated12 Oct
  3. Consult.
  4. Target7 Dec
  5. Decided

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View on the council's siteDocuments

About this application

This is a planning application for a dormer extension at 26 Holly Avenue Walton-On-Thames Surrey KT12 3AT. Elmbridge has handled 28 applications of this type. It has been with the council since 12 October 2026 and is still awaiting a decision. There are no previous applications recorded at this address. In the past year there have been 57 applications across Walton South Ward. We hold 1,346 applications in total for the KT12 postcode area.

79% of all applications at Elmbridge Borough Council were approved. Across all application types, the council typically decides in about 9 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
KT12 3AT
Application type
Lawful Development Cert - Proposed

Planning application dates

Date validated
12 October 2026

Applicant and agent

Applicant
Private applicant
Agent address
Flat 7,Stewart Court,2 Colnhurst Road,Watford,WD17 4BW

Planning decision

Case officer
Harmeet Minhas

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Flood zone 3: High probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

Possibly incomplete for this council: tree preservation orders.

Also checked, none recorded (22)

flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source: Elmbridge

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Before the decision

You may need a flood risk assessment. Drainage & flood risk consultants near this site

The site is in flood zone 3 (Environment Agency).

See all drainage and flood risk consultants near Field Common

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