16 Hillside Grove Chelmsford Essex CM2 9DA

1. 26 Oct 2026

   Validated

   Checked as complete and ready for consideration.

2. 30 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 21 December 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Chelmsford took a median of 55 days over the applications it decided in the last year.

This application is with Chelmsford for determination, against a statutory target of eight weeks. Over the last year Chelmsford decided lawful development applications in a median of 54 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 26 Hillside Grove Chelmsford Essex CM2 9DA

  20/00390/FUL Submitted 11 Mar 2020 50 yards away

  Single storey rear extension

  Granted Full applications Extension 7 docs
  Small domestic

• 26 Longstomps Avenue Chelmsford Essex CM2 9LA

  21/01607/FUL Submitted 13 Aug 2021 50 yards away

  Single storey front, side and rear extension

  Granted Full applications Extension 10 docs
  Small domestic

• 34 Hillside Grove Chelmsford Essex CM2 9DA

  20/01630/FUL Submitted 21 Oct 2020 50 yards away

  Demolish lean-to extension and shed at side. Construction of two storey side extension and first floor rear extension.

  Granted Full applications Extension Demolition 6 docs
  Small domestic

• 22 Longstomps Avenue Chelmsford Essex CM2 9LA

  18/00849/FUL Submitted 8 May 2018 50 yards away

  Single storey side and rear extension, conversion of existing garage into habitable accommodation, hipped to gable roof conversion with rear dormer window, front roof lights and new second floor side window.

  Granted Full applications Extension Loft or dormer +1 7 docs
  Small domestic

• 6 Longstomps Avenue Chelmsford Essex CM2 9LA

  26/00946/FUL Submitted 13 Jul 2026 50 yards away

  Two storey side extension. Single storey side/rear extension.

  Granted Full applications Extension
  Small domestic

• 6 Longstomps Avenue Chelmsford Essex CM2 9LA

  26/00032/HHPA Submitted 28 Sep 2026 50 yards away

  88% historically approved · decision due ~23 Nov

  The construction of a single storey rear extension, which would extend beyond the rear wall of the original house by a maximum depth of 8m, for which the maximum height would be 3.4m, and for which the height of the eaves would be 3m.

  Awaiting decision Extension
  Small domestic

• 26/01414/CLOPUD Awaiting decision

  49 Partridge Avenue Chelmsford Essex CM1 4JG

  Proposed conversion of carport into habitable space. Replacement of the existing conservatory with single storey side extension, with internal alterations, and changes to fenestration

  Lawful development
• 26/01427/CLOPUD Awaiting decision

  11 Gardiner Way Chelmsford Garden Community Chelmsford CM1 6BS

  Addition of 7 flush to the roof plain roof light windows for a loft conversion with dark frames to match the roof and windows

  Lawful development
• 26/01437/CLOPUD Awaiting decision

  192 Galleywood Road Great Baddow Chelmsford Essex CM2 8NB

  Construction of a single storey garden building.

  Lawful development
• 26/01404/CLOPUD Awaiting decision

  84 Millfields Writtle Chelmsford Essex CM1 3LW

  Proposed single storey rear extension

  Lawful development
• 26/01328/CLOPUD Awaiting decision

  31 Greenways Chelmsford Essex CM1 4EF

  Loft conversion with rear and side dormer, rear juliet balcony, second floor side window and two front facing roof lights.

  Lawful development