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Planning application

21 Betenson Avenue Sevenoaks Kent TN13 3EW

Granted Sevenoaks 26/00760/HOUSE Householder Application

Works: Extension Loft or dormer Small domestic

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

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Two storey rear/side extension with Juliet balcony. New Porch, rooflights, extend patio area and reposition of fence and gate.

As published by the council, reference 26/00760/HOUSE

Application record

Reference
26/00760/HOUSE
Type
Householder Application
Status
Granted
Decision
Granted
Received
23 Mar 2026
Validated
20 Apr 2026
Decided
15 Jun 2026
Ward
Sevenoaks Northern
Parish
Sevenoaks
Decision by
Delegated Decision
Postcode
TN13 3EW

Timeline

Dates from the published record

  1. 23 Mar 2026

    Received by Sevenoaks

  2. 20 Apr 2026

    Validated

    Checked as complete and ready for consideration.

  3. 15 Jun 2026

    Decision issued: Granted

  4. 29 Jul 2026

    Added to PlanIndex

Documents

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

11 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

What this grant of permission means

Sevenoaks granted permission on 15 June 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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

  • 4 Broomfield Road Sevenoaks Kent TN13 3EL

    25/03120/HOUSE Submitted 31 Oct 2025 50 yards away

    90% historically approved · decision due ~1 Jan

    Demolition of the existing side extension. Erection of a ground floor side extension with a rooflight. Erection of a ground floor rear extension with a rooflight. Alteration to fenestration. Replacement of the front glazed pergola. Replacement of the front steps to the patio.

    Awaiting decision Householder Extension Loft or dormer +2 7 docs
    Domestic

  • 15 Betenson Avenue Sevenoaks KENT TN13 3EN

    19/02778/HOUSE Submitted 30 Sep 2019 50 yards away

    Two storey rear extension along with modification and extension of front entrance with associated internal alterations

    Granted Householder Extension 12 docs
    Domestic

  • 34 Betenson Avenue Sevenoaks Kent TN13 3EW

    26/00895/HOUSE Submitted 2 Apr 2026 50 yards away

    Demolition of existing 3 storage buildings, entrance hall and conservatory. Rear and side extension with rooflights. Loft conversion. A new porch. New patio and steps. Refuse store. Cladding.

    Granted Householder Extension Loft or dormer +1 10 docs
    Small domestic

  • 10 Broomfield Road Sevenoaks Kent TN13 3EL

    23/01493/MMA Submitted 30 May 2023 100 yards away

    Amendment to 20/01383/HOUSE

    Withdrawn Amendments 3 docs

  • 11 Betenson Avenue Sevenoaks Kent TN13 3EN

    23/01027/MMA Submitted 7 Apr 2023 100 yards away

    Amendment to 22/03066/CONVAR

    Granted Amendments 6 docs

  • 123 Bradbourne Vale Road Sevenoaks Kent TN13 3DJ

    26/02447/PAE Submitted 15 Sep 2026 100 yards away

    90% historically approved · decision due ~10 Nov

    Prior notification of a single storey rear extension which extends 3.90m beyond the rear wall of the original dwelling house with a maximum height of 3.50m and eaves height of 3.00m.

    Awaiting decision Extension
    Small domestic

In Sevenoaks

  • 26/01183/HOUSE Granted

    Windy Ridge Church Road Hartley Kent DA3 8DY

    Proposed demolition of existing outbuilding and erection of single-storey rear extension.

    Received 8 May, published by the council 26 Jul 2026 Householder
  • 26/01364/HOUSE Granted

    Kennels Cottage 1 Coombe Road Otford Kent TN14 5RJ

    Demolition of existing porch and construction/relocation of new porch, new single storey rear extension. Alterations to roof line and fenestration, including new dormers, roof lights and changes to windows and doors. Widened parking area, new path and pedestrian gate and fence. Associated hard and soft landscaping.

    Received 29 May, published by the council 26 Jul 2026 Householder
  • 26/00879/HOUSE Refused

    Pinewood Church Road Hartley Kent DA3 8DN

    Two story side extension with a part pitched roof to the front elevation and then flat roof to rear and a rooflight to the existing roof above the existing staircase. New pedestrian access with new wall and removal of existing hedge. Alterations to fenestration.

    Received 1 Apr, published by the council 29 Jul 2026 Householder
  • 26/01245/HOUSE Refused

    Ashdown Well Hill Lane Orpington Kent BR6 7QJ

    Front and rear extension with the addition of new wall/roof cladding materials and rooflights. Alterations to fenestration.

    Received 15 May, published by the council 26 Jul 2026 Householder
  • 26/01118/HOUSE Granted

    Bothy Cottage Highfield Row Dow Lane Knatts Valley Kent TN15 6XN

    Demolition of existing porch; rear conservatory and shed; erection of single storey front with open porch and rear extension and detached garage; installation of rooflights, air source heat pump, air con unit and solar panels, alterations of fenestration and associated works. Juliet balcony. Landscaping.

    Received 30 Apr, published by the council 26 Jul 2026 Householder