41 Sixth Avenue Chelmsford Essex CM1 4ED

This site has had 2 applications since 2026.

• 26/00035/HHPA Awaiting decision

  41 Sixth Avenue Chelmsford Essex CM1 4ED

  Proposed single storey rear extension to the dwellinghouse, extending 5.8 metres beyond the rear wall of the original dwellinghouse, with a mono-pitched roof of maximum height 3.51 metres and eaves height 2.65 metres (measured externally from natural ground level), to provide an enlarged kitchen/dining room with wet room. Materials to match the existing dwellinghouse. The extension does not extend beyond a side wall of the original dwellinghouse. The proposal also includes alteration of an existing ground floor window opening to the rear bathroom (permitted development under Class A, not forming part of the prior approval). This application follows the refusal of Certificate of Lawfulness 26/01290/CLOPUD (16 October 2026), which was refused solely because the extension exceeds the 3 metre depth limit in Class A.1(f); the proposal is otherwise unchanged and is shown on drawings A2833/101, A2833/201/A and A2833/301.

  Submitted 21 Oct 2026

1. 21 Sep 2026

   Validated

   Checked as complete and ready for consideration.

2. 1 Oct 2026

   Added to PlanIndex

3. 16 Oct 2026

   Status changed to Application Refused

   Previously Pending Consideration.

1 later application on the register refers to this one:

• 26/00035/HHPA Awaiting decision

  41 Sixth Avenue Chelmsford Essex CM1 4ED

  Proposed single storey rear extension to the dwellinghouse, extending 5.8 metres beyond the rear wall of the original dwellinghouse, with a mono-pitched roof of maximum height 3.51 metres and eaves height 2.65 metres (measured externally from natural ground level), to provide an enlarged kitchen/dining room with wet room. Materials to match the existing dwellinghouse. The extension does not extend beyond a side wall of the original dwellinghouse. The proposal also includes alteration of an existing ground floor window opening to the rear bathroom (permitted development under Class A, not forming part of the prior approval). This application follows the refusal of Certificate of Lawfulness 26/01290/CLOPUD (16 October 2026), which was refused solely because the extension exceeds the 3 metre depth limit in Class A.1(f); the proposal is otherwise unchanged and is shown on drawings A2833/101, A2833/201/A and A2833/301.

Chelmsford 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.

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.

• 41 Sixth Avenue Chelmsford Essex CM1 4ED

  26/00035/HHPA Submitted 21 Oct 2026 50 yards away

  88% historically approved · decision due ~16 Dec

  Proposed single storey rear extension to the dwellinghouse, extending 5.8 metres beyond the rear wall of the original dwellinghouse, with a mono-pitched roof of maximum height 3.51 metres and eaves height 2.65 metres (measured externally from natural ground level), to provide an enlarged kitchen/dining room with wet room. Materials to match the existing dwellinghouse. The extension does not extend beyond a side wall of the original dwellinghouse. The proposal also includes alteration of an existing ground floor window opening to the rear bathroom (permitted development under Class A, not forming part of the prior approval). This application follows the refusal of Certificate of Lawfulness 26/01290/CLOPUD (16 October 2026), which was refused solely because the extension exceeds the 3 metre depth limit in Class A.1(f); the proposal is otherwise unchanged and is shown on drawings A2833/101, A2833/201/A and A2833/301.

  Awaiting decision Extension Windows or glazing
  Small domestic

• 37 Sixth Avenue Chelmsford CM1 4ED

  18/00700/FUL Submitted 13 Apr 2018 50 yards away

  Loft conversion with hip to gable roof extension and rear dormer window. New second floor side window and two front facing rooflights. Ground floor rear door and window changes and new rooflight in existing flat roof.

  Granted Full applications Extension Loft or dormer +1 11 docs

• 39 Sixth Avenue Chelmsford Essex CM1 4ED

  19/02087/FUL Submitted 23 Dec 2019 50 yards away

  Proposed single storey side extension and internal alterations

  Granted Full applications Extension 9 docs
  Small domestic

• 22 Sixth Avenue Chelmsford Essex CM1 4ED

  17/00211/NMAT/1 Submitted 1 Jun 2018 50 yards away

  Non-material amendment to planning permission 17/00211/FUL (Single storey rear extension & first floor side extension) to relocate entrance door to front & re-position and additional windows to side elevation

  Granted Amendments Extension Windows or glazing 4 docs
  Small domestic

• 22 Sixth Avenue Chelmsford Essex CM1 4ED

  17/00211/NMAT/2 Submitted 15 Jan 2021 50 yards away

  Non-material amendment to planning permission 17/00211/FUL - (Single storey rear extension and first floor side extension). Change roof shape from monopitch to flat with 1 roof window. Removal of fenestration on rear extension facing non-adjoining neighbour. Removal of window to ground floor side level.

  Granted Amendments Extension Windows or glazing 5 docs
  Small domestic

• 16 Sixth Avenue Chelmsford Essex CM1 4ED

  20/00099/FUL Submitted 28 Jan 2020 100 yards away

  Demolition of existing conservatory and garage. Construction of single storey rear extension. Hip to gable loft conversion and rear dormer to create second floor area. Additional roof windows to front and rear elevations.

  Granted Full applications Extension Loft or dormer +2 7 docs
  Small domestic

• 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
• 26/01396/CLOPUD Awaiting decision

  4 Howard Drive Chelmer Village Chelmsford Essex CM2 6PE

  Conversion of the existing double garage into habitable accommodation.

  Lawful development
• 26/01360/CLOPUD Awaiting decision

  67 North Avenue Chelmsford Essex CM1 2AN

  Single storey rear extension and single storey side extension.

  Lawful development
• 26/01381/CLOPUD Awaiting decision

  43 Violet Close Springfield Chelmsford CM1 6XG

  Change of use of the existing dwellinghouse (Class C3) to a small-scale children's home (Class C2).

  Lawful development