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Planning application

17 Merton Street Cambridge Cambridgeshire CB3 9JD

Awaiting decision Cambridge 26/03015/HFUL Householder Works/Extension

Works: Extension Demolition Small domestic

Read from the description, not a valuation. How we read the register

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Demolition of existing conservatory and replacement single storey rear/side extension.

As published by the council, reference 26/03015/HFUL

Application record

Reference
26/03015/HFUL
Type
Householder Works/Extension
Status
Awaiting decision
Received
10 Aug 2026
Validated
12 Aug 2026
Ward
Newnham
Postcode
CB3 9JD

Comment by 17 September 2026

The council is taking comments on this application until then. Have your say on Cambridge's portal.

Site history

Applications at this address on the Cambridge register

This site has had 2 applications since 2026.

  • 26/02437/HFUL Withdrawn

    17 Merton Street Cambridge Cambridgeshire CB3 9JD

    Demolition of existing conservatory and replacement single storey rear/side extension.

    Decided 22 Jul 2026 Householder

Timeline

Dates from the published record

  1. 10 Aug 2026

    Received by Cambridge

  2. 12 Aug 2026

    Validated

    Checked as complete and ready for consideration.

  3. 14 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 7 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Cambridge took a median of 52 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Agent on file, a design practice registered in Babraham

14 applications on PlanIndex · across 5 councils

Trade members see who it is, their full track record, and every application they have filed.

See who's behind it

Documents

Plans, drawings, consultee responses and the officer's report

17 documents on file for this application

  • ACKNOWLEDGEMENT LETTER Application Officer Correspondence · 17 Aug 2026
  • MAP OF NOTIFIED NEIGHBOURS Neighbour/Consultee Notification List · 17 Aug 2026
  • SITE NOTICE Application Press/Site Notices · 17 Aug 2026
  • RECEIPT Application Officer Correspondence · 12 Aug 2026
  • APPLICATION VALID Application Officer Correspondence · 12 Aug 2026
  • INVALID LETTER Application Information · 11 Aug 2026
  • FEE CALCULATION Application Information · 10 Aug 2026
  • APPLICATION FORM - NO PERSONAL INFO Application Information · 10 Aug 2026
  • ATTACHMENT SUMMARY FROM PORTAL Attachment Summary · 10 Aug 2026
  • PROPOSED SECTION AND REAR ELEVATION Drawings · 10 Aug 2026
  • BLOCK PLAN Drawings · 10 Aug 2026
  • EXISTING ELEVATIONS Drawings · 10 Aug 2026
  • PROPOSED GROUND AND FIRST FLOOR PLAN Drawings · 10 Aug 2026
  • PROPOSED ELEVATIONS Drawings · 10 Aug 2026
  • EXISTING PLANS Drawings · 10 Aug 2026
  • DESIGN AND ACCESS STATEMENT Design and Access Statement · 10 Aug 2026
  • LOCATION PLAN Drawings · 10 Aug 2026

Trade members open them from here.

Open the documents

What happens while it is decided

This application is with Cambridge for determination, against a statutory target of eight weeks. Over the last year Cambridge decided householder applications in a median of 56 days. More in our guide to how long planning decisions take.

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

  • 17 Merton Street Cambridge Cambridgeshire CB3 9JD

    26/02437/HFUL Submitted 26 Jun 2026 0m away

    Demolition of existing conservatory and replacement single storey rear/side extension.

    Withdrawn Householder Extension Demolition 15 docs
    Small domestic
  • 1 The Cenacle Cambridge CB3 9JS

    21/0013/TTCA Submitted 6 Jan 2021 51m away

    (G1) Yew and Laurel Shrubs (on the boundary, belonging to 1 The Cenacle) - reduce in height by 1m to improve form and maintain in their current location.

    Granted Trees 7 docs
  • 1 The Cenacle Cambridge CB3 9JS

    20/2411/TTCA Submitted 2 Dec 2020 51m away

    (T1) Eucalyptus - remove to ground level. (T2) Cotoneaster - remove to ground level. The above work is due to disturbance to the patio and boundary wall as a result of these tree's roots.

    Granted Trees 7 docs
    Small domestic
  • 31 Grantchester Street Cambridge Cambridgeshire CB3 9HY

    24/0947/TTCA Submitted 2 Sep 2024 71m away

    T1 - Norway Maple - Reduce height by approximately 3m down to previous reduction points. Reduce spread on all sides by approximately 2m T2 - Fig - Remove two low limbs growing out towards lawn. Reduce height of remaining canopy by 1 - 1.5m and shape round T3 - Holly - Fell to as close to ground level as possible

    Granted Trees 8 docs
  • 15 Derby Street Cambridge Cambridgeshire CB3 9JE

    24/04226/CL2PD Submitted 11 Nov 2024 75m away

    Certificate of lawfulness under S192 for the replacement of existing garden room glass roof with new tiled roof with 3 No rooflights and replacement of rear glazing and patio doors to rear elevation.

    Granted Lawful development Loft or dormer Windows or glazing 10 docs
  • 30 Eltisley Avenue Cambridge CB3 9JG

    21/00269/HFUL Submitted 22 Jan 2021 79m away

    Replacement outhouse (following demolition of existing shed)

    Granted Householder Demolition 17 docs
    Small domestic

In Cambridge

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    9 Jul 2026 Householder
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    14 Jul 2026 Householder
  • 26/02478/HFUL Granted

    15-17 Clarendon Road Cambridge Cambridgeshire CB2 8BH

    Replacement roof to outbuilding in rear garden.

    30 Jun 2026 Householder
  • 26/02583/HFUL Granted

    21 Latham Road Cambridge Cambridgeshire CB2 7EG

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    7 Jul 2026 Householder