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Planning application

16 St Marks Road Henley-on-Thames RG9 1LJ

Decided South Oxfordshire P26/S3919/HH Householder Application

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.

  • 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.

    Submitted 19 Aug 2026 Trees
  • 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.

    Decided 6 Aug 2026 Trees

Timeline

Dates from the published record

  1. 4 Sep 2026

    Received by South Oxfordshire

  2. 10 Sep 2026

    Validated

    Checked as complete and ready for consideration.

  3. 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 record

Documents

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 documents

After 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

    P16/S4721/TCA Submitted 27 Oct 2016 0m away

    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

    P15/S4486/TCA Submitted 27 Apr 2015 0m away

    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

    P19/S0223/HH Submitted 23 Jan 2019 0m away

    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 docs
    Small domestic
  • 10 St Marks Road Henley-on-Thames RG9 1LJ

    P16/S0836/HH Submitted 8 Mar 2016 0m away

    The erection of a garden room for use as a home office and guest suite.

    Decided Householder 8 docs
    Small domestic
  • 2A St Marks Road HENLEY-ON-THAMES RG9 1LJ

    P16/S3789/HH Submitted 14 Nov 2016 0m away

    Installation of gates at the entrance to the driveway.

    Refused Householder 13 docs
    Domestic
  • 8 St Marks Road, Henley on Thames, Oxon, RG9 1LJ

    P17/S4819/TCA Submitted 28 Sep 2017 0m away

    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 docs
    Small domestic

In South Oxfordshire

  • P25/S4041/HH Granted

    91 Church Road, Wheatley, OX33 1LU

    Erection of two storey front extensions, replace the existing slate roof with a new insulated roof covering, reconfigure ground and first floor.

    19 Dec 2025 Householder
  • P26/S3221/HH Granted

    Old Stable 5 The Rickyard Chalgrove Oxford OX44 7QU

    Single storey front porch extension.

    28 Jul 2026 Householder
  • 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).

    15 Apr 2026 Householder
  • 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.

    11 May 2026 Householder
  • P26/S3012/HH Granted

    2 Augustine Way Thame OX9 3EA

    Single storey side to front extension.

    20 Jul 2026 Householder