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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

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.

    Decided 15 Sep 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

61 applications on PlanIndex · across 5 councils · 98% 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

20 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.

Watch members (£5 a month) open the document list 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 0.3 miles

  • 2b St Marks Road Henley-on-Thames RG9 1LJ

    P15/S1851/HH Submitted 2 Jun 2015 50 yards away

    Erection of two storey side extension (As amended by revised plans accompanying agent's letter dated 28th July 2015; showing reduction in the depth and ridge height of the extension and the removal of a section of the front boundary wall to facilitate revised parking arrangement)

    Granted Householder Extension Roofing 7 docs
    Small domestic
  • Greenview, 2 St Marks Road, Henley on Thames, Oxon, RG9 1LJ

    P16/S4721/TCA Submitted 27 Oct 2016 50 yards 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 50 yards 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 50 yards 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 50 yards away

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

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

    P16/S3789/HH Submitted 14 Nov 2016 50 yards away

    Installation of gates at the entrance to the driveway.

    Refused Householder 13 docs
    Domestic

In South Oxfordshire

  • P26/S3776/HH Granted

    9 Ash Hurst Goring Reading RG8 0DQ

    Single storey side extension and two storey rear extension. Erection of car port.

    Received 27 Aug, published by the council 8 Sep 2026 Householder
  • P26/S3727/HH Granted

    14 The Croft Didcot OX11 8HR

    Part two storey and single storey rear extension to replace existing structures. Storm porch addition to front extension

    Received 24 Aug, published by the council 2 Sep 2026 Householder
  • P26/S3518/HH Granted

    121 Wessex Road Didcot OX11 8BJ

    Loft conversion to form a new bedroom. Internal alterations with single storey extension to the rear. Replacement of timber outbuilding.

    Received 12 Aug, published by the council 27 Aug 2026 Householder
  • P26/S2946/HH Granted

    Duxford House Mill Road Shiplake Henley-on-Thames RG9 3LT

    New Garden Outbuilding.

    Received 15 Jul, published by the council 21 Aug 2026 Householder
  • P26/S3428/HH Granted

    Grange Stables Moulsford Wallingford OX10 9JD

    Ground floor kitchen extension and internal alterations

    Received 7 Aug, published by the council 21 Aug 2026 Householder