13 Cornwallis Avenue Tonbridge Kent TN10 4EP

1. 2 Sep 2026

   Received by Tonbridge and Malling

2. 2 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Tonbridge and Malling took a median of 62 days over the applications it decided in the last year.

This application is with Tonbridge and Malling for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 5 Cornwallis Avenue Tonbridge Kent TN10 4EP

  21/01185/FL Submitted 26 Apr 2021 20m away

  Single storey rear extension and making loft habitable without adding dormer

  Granted Full applications Extension Loft or dormer 6 docs
  Small domestic

• 11 Cornwallis Avenue Tonbridge Kent TN10 4EP

  19/02514/FL Submitted 28 Oct 2019 41m away

  Proposed loft conversion with hip to gable roof extension to both side elevations and rear roof section, dormer window with Juliet balcony to rear elevation and 2 No rooflight windows to front elevation

  Granted Full applications Extension Loft or dormer +1 12 docs

• 11 Cornwallis Avenue Tonbridge Kent TN10 4EP

  20/01912/FL Submitted 2 Sep 2020 44m away

  Replacement roof and frames to existing rear conservatory

  Granted Full applications Extension Roofing 8 docs

• 13 Cornwallis Avenue Tonbridge Kent TN10 4EP

  22/00595/FL Submitted 15 Mar 2022 60m away

  Construction of extension to the rear of the property and internal alterations

  Granted Full applications Extension 7 docs

• 13 Cornwallis Avenue Tonbridge Kent TN10 4EP

  23/00465/PDVLR Submitted 2 Mar 2023 66m away

  Prior Notification for Larger Home Extension: (Part 1, Class A): single storey rear extension, to a depth of 5.4m, maximum roof height of 3.5m and eaves height of 3.3m

  Granted Outline Extension 7 docs
  Small domestic

• Fork Ridge Old Hadlow Road Tonbridge Kent TN10 4EZ

  19/02457/FL Submitted 21 Oct 2019 67m away

  First floor side extension

  Granted Full applications Extension 14 docs

• 26/01632/LDP Awaiting decision

  38 Hunt Road Tonbridge Kent TN10 4BE

  Lawful Development Certificate Proposed: Creation of a new vehicular access to the existing dwelling, including a new dropped kerb/vehicle crossing across the existing highway verge and the formation of a hard standing driveway within the front garden for off-street parking. The proposed driveway/hard standing will measure approximately 4.0 metres by 6.8 metres

  3 Sep 2026 Lawful development
• 26/01624/LDP Awaiting decision

  57 Chichester Road Tonbridge Kent TN9 2TJ

  Lawful Development Certificate Proposed: Loft conversion with dormer window to rear elevation & 2 No rooflights to front elevation

  2 Sep 2026 Lawful development
• 26/01605/LDP Awaiting decision

  44 Hilltop Tonbridge Kent TN9 2UN

  Lawful Development Certificate Proposed: Extended dropped kerb

  28 Aug 2026 Lawful development
• 26/01580/LDP Awaiting decision

  42 Willowmead Leybourne West Malling Kent ME19 5RE

  Lawful Development Certificate Proposed: Part conversion of garage into living accommodation

  25 Aug 2026 Lawful development
• 26/01568/LDP Awaiting decision

  2 Challenger Avenue West Malling Kent ME19 4XF

  Lawful Development Certificate Proposed: Extension to existing drop kerb and driveway

  21 Aug 2026 Lawful development