Planning application
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Works: Loft or dormer Windows or glazing
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Rear dormer windows to provide rooms in the roofspace and side rooflights.
As published by the council, reference 2025/2444
Application record
- Reference
- 2025/2444
- Type
- Lawful Development Cert - Proposed
- Status
- Final Decision
- Decision
- Refuse Lawful Development Certificate
- Received
- 23 Sep 2025
- Validated
- 23 Sep 2025
- Decided
- 23 Dec 2025
- Ward
- Walton Central Ward
- Decision by
- Officer delegated
- Postcode
- KT12 1ER
Site history
Applications at this address on the Elmbridge register
This site has had 6 applications since 2022: 2 approved, 1 refused.
-
2026/0156 Granted
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Construction of new single storey rear extension and two storey side extension with integral garage, removal of two chimney stacks; alteration and rebuilding of existing pitched roof with raised eaves level and shallower roof pitch, construction of new walls at ground floor main entrance to infill space below projecting part of first floor, installation of new entrance door and fixed glazing, installation of new projecting portico at main entrance, removal of existing first floor tile hanging and installation of new external wall insulation and new render finish to existing uninsulated masonry walls, installation of new rain water and drainage goods. Conversion of loft space to add two bedrooms and one bathroom at second floor level, addition of two dormer windows to rear facing roof slope, addition of two roof lights to side facing roof slopes and addition of frameless flat roof light to crown of roof following demolition of conservatory.
-
2025/3327 Split decision
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
EL:15/08 - T1 Oak - whole crown reduction by 3 meters, crown lift to 5 meters. Low crown heavily overhanging driveway and encroaching on house and roof as well as long overextended branches. Left side of crown over neighbouring driveway has been previously reduced leaving tree unbalanced.
-
2025/0658 Granted
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Roof extension incorporating an increase in eaves height, two-storey side extension with integral garage, single-storey rear and front extensions, front porch and alterations to fenestration and exterior finish following partial demolition of existing house and removal of chimney stack.
-
2025/0231 Withdrawn
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Roof extension incorporating an increase in eaves height, two-storey side extension incorporating garage, single storey rear and front extensions, front porch and alterations to fenestration and exterior finish following partial demolition of existing house and removal of chimney stack.
-
2022/2909 Split decision
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Tree Preservation Order EL:15/08 - Crown reduce and lift lower canopy 1 x Oak (T1).
Timeline
Dates from the published record
-
23 Sep 2025
Received by Elmbridge
-
23 Dec 2025
Decision issued: Refuse Lawful Development Certificate
-
7 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
16 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.
Trade members open them from here.
Open the documentsWhat this refusal means
Elmbridge 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 lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Construction of new single storey rear extension and two storey side extension with integral garage, removal of two chimney stacks; alteration and rebuilding of existing pitched roof with raised eaves level and shallower roof pitch, construction of new walls at ground floor main entrance to infill space below projecting part of first floor, installation of new entrance door and fixed glazing, installation of new projecting portico at main entrance, removal of existing first floor tile hanging and installation of new external wall insulation and new render finish to existing uninsulated masonry walls, installation of new rain water and drainage goods. Conversion of loft space to add two bedrooms and one bathroom at second floor level, addition of two dormer windows to rear facing roof slope, addition of two roof lights to side facing roof slopes and addition of frameless flat roof light to crown of roof following demolition of conservatory.
Granted Householder Extension Loft or dormer +2 22 docsSmall domestic -
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Roof extension incorporating an increase in eaves height, two-storey side extension with integral garage, single-storey rear and front extensions, front porch and alterations to fenestration and exterior finish following partial demolition of existing house and removal of chimney stack.
Granted Householder Extension Demolition +1 22 docsSmall domestic -
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Tree Preservation Order EL:15/08 - Crown reduce and lift lower canopy 1 x Oak (T1).
Split decision Trees 4 docs -
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
Roof extension incorporating an increase in eaves height, two-storey side extension incorporating garage, single storey rear and front extensions, front porch and alterations to fenestration and exterior finish following partial demolition of existing house and removal of chimney stack.
Withdrawn Householder Extension Demolition +1 16 docsSmall domestic -
25 Ashley Park Avenue Walton-On-Thames Surrey KT12 1ER
EL:15/08 - T1 Oak - whole crown reduction by 3 meters, crown lift to 5 meters. Low crown heavily overhanging driveway and encroaching on house and roof as well as long overextended branches. Left side of crown over neighbouring driveway has been previously reduced leaving tree unbalanced.
Split decision Trees 5 docs -
23 Ashley Park Avenue Walton-on-Thames Surrey KT12 1ER
Single-storey rear extension following demolition of existing conservatory, partial conversion of garage into living space and alterations to fenestration.
Granted Householder Extension Demolition +1 7 docsSmall domestic
Other lawful development applications
In Elmbridge
-
2026/1633 Refused
41 Ember Lane Esher Surrey KT10 8EA
Single storey rear extension.
-
2026/1461 Refused
1 Home Farm Close Esher Surrey KT10 9HA
Outbuilding following removal of existing outbuilding.
-
2026/1877 Granted
21 Manor Walk Weybridge Surrey KT13 8SD
Single storey side extension following demolition of existing detached outbuilding.
-
2026/1739 Granted
20 Sidney Road Walton-OnThames Surrey KT12 2NA
Bifold doors to rear following demolition of existing rear bay window.
-
2026/1664 Granted
12 Green Lane Cobham Surrey KT11 2NN
Enlargement of rear first-floor window.