Planning application
16 St Marks Road Henley-on-Thames RG9 1LJ
Works: Extension Loft or dormer Small domestic
Read from the description, not a valuation. How we read the register
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
Single storey & 1st floor rear extensions. 2nd floor dormer. Side lean-to carport to replace existing garage.
As published by the council, reference P26/S3919/HH
Application record
- Reference
- P26/S3919/HH
- Type
- Householder Application
- Status
- Consultation Period
- Decision
- Application is not yet decided
- Received
- 4 Sep 2026
- Validated
- 10 Sep 2026
- Decision by
- Not Yet Recommended
- Postcode
- RG9 1LJ
Comment by 16 October 2026
The council is taking comments on this application until then. Comments go to South Oxfordshire through their own planning portal.
Site history
Applications at this address on the South Oxfordshire register
This site has had 3 applications since 2026.
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P26/S3648/TCA Decided
16 St Marks Road Henley-on-Thames RG9 1LJ
T1 – Holly (Ilex aquifolium): Fell to ground level and remove associated ivy/climbing vegetation. T2 – Holly (Ilex aquifolium): Fell to ground level and remove associated ivy/climbing vegetation. T3 – Self-seeded deciduous tree (species uncertain): Fell to ground level. T4 – Self-seeded tree (species uncertain): Fell to ground level. T5 – Self-seeded tree (species uncertain): Fell to ground level. T6 – Dead/dying tree (species indeterminate due to condition and extensive climbing vegetation): Fell to ground level and remove associated dead/ivy growth. T7 – Self-seeded evergreen tree, likely Privet/Holly: Fell to ground level and remove associated ivy/climbing vegetation. T8 – Self-seeded evergreen tree, likely Privet/Holly: Fell to ground level and remove associated ivy/climbing vegetation. T9 – Self-seeded evergreen tree, likely Privet/Holly: Fell to ground level and remove associated ivy/climbing vegetation. Trees T1–T9 are identified on the accompanying Tree Works Sketch Plan. Please also refer to the accompanying Tree Works Schedule and supporting photographs for further details regarding tree condition and the reasons for the proposed works.
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P26/S3068/TCA Decided
16 St Marks Road Henley-on-thames RG9 1LJ
Remove the following trees: • T1 –Likely Strawberry Tree (Arbutus unedo). • T2 – Likely Plum tree (Prunus species). • T3 – Likely Lawson Cypress / ornamental cypress (Chamaecyparis species). • T4 – Likely Plum tree (Prunus species). • T5 – Likely Lawson Cypress.
Timeline
Dates from the published record
-
4 Sep 2026
Received by South Oxfordshire
-
10 Sep 2026
Validated
Checked as complete and ready for consideration.
-
15 Sep 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
STL Architecture Ltd Agent, an architecture practice registered in Reading
Active · incorporated 2019 · Reading
53 applications on PlanIndex · across 5 councils · 97% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
19 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 documentsAfter the decision
South Oxfordshire has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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 500 metres
-
Greenview, 2 St Marks Road, Henley on Thames, Oxon, RG9 1LJ
T1 - Acer T2 - Acer T3 - Hornbeam (neighbouring property) T1 - Acer - crown reduce by 1-1.5m in height and lateral spread to match, leaving a well balanced flowing crown. T2 - Acer - as T1. T3 - Hornbeam - located in neighbouring property (owners permission granted) lightly reduce lateral spread to SW, W and NW over driveway and towards above Acer by 1-1.5m to contain. Remarks: Spec:
Decided Trees 2 docs -
10 St Marks Road, Henley on Thames, Oxon, RG9 1LJ
3 x Conifers Removal of three conifers at the rear boundary of the property. It is intended to rebuild the wall at the back of the property (which is encroached on by the trees) in line with the neighbours wall and the wall at the sides of the property i.e. higher than at present. Remarks:
Decided Trees 2 docs -
20 St Marks Road Henley on Thames Oxfordshire RG9 1LJ
Formation of dropped kerb along frontage of No 20 St Marks Road. The removal of the front dwarf brick boundary wall and the paving of the front garden area for use as parking space.
Withdrawn Householder 4 docsSmall domestic -
10 St Marks Road Henley-on-Thames RG9 1LJ
The erection of a garden room for use as a home office and guest suite.
Decided Householder 8 docsSmall domestic -
2A St Marks Road HENLEY-ON-THAMES RG9 1LJ
Installation of gates at the entrance to the driveway.
Refused Householder 13 docsDomestic -
8 St Marks Road, Henley on Thames, Oxon, RG9 1LJ
T1 - Cherry T2 - Cherry T3 - Magnolia T1 - Cherry - reduce lateral sprad over shed and property (8 St Marks Road) by 1-1.5m. T2 - Cherry - crown reduce and formative prune by approximately 2m. T3 - Magnolia - crown reduce by 1-1.5m. Remarks:
Decided Trees 2 docsSmall domestic
Other householder applications
In South Oxfordshire
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P25/S4041/HH Granted
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Erection of two storey front extensions, replace the existing slate roof with a new insulated roof covering, reconfigure ground and first floor.
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P26/S3221/HH Granted
Old Stable 5 The Rickyard Chalgrove Oxford OX44 7QU
Single storey front porch extension.
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P26/S1308/HH Granted
Centenary House Brook Lane Thame OX9 2AB
Removal of brick wall and replacement with hedge and temporary chain-link fencing (amended by plans received 10 August 2026 showing the chain-link fence repositioned from the front of the hedge to behind it and set back from the boundary, and details on hedge planting received).
-
P26/S1609/HH Granted
Swanston West High Street Whitchurch On Thames Reading RG8 7ER
House: Proposed front extension, insertion of new windows to first floor side elevation and rooflights to main house. Roof: Retiling of main house roof with tiles to match, replacement double glazed windows to main house. Garage: Demolition of existing conservatory, construction of new pitched roof extension for home gym and raising of existing roof to enable home office in roof space.
-
P26/S3012/HH Granted
2 Augustine Way Thame OX9 3EA
Single storey side to front extension.