66A Sebastian Avenue Shenfield Essex CM15 8PP

1. 27 Jan 2025

   Received by Brentwood

2. 2 May 2025

   Decision issued: Application Permitted

3. 30 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 53 Kilworth Avenue Shenfield Essex CM15 8PT

  26/00166/HHA Submitted 4 Mar 2026 51m away

  Enlargement of existing dwelling comprising side extension at first floor level, two storey rear extension with single storey rear projection, raising and extending of existing hipped roof to accommodate en-suite bedroom in newly formed roofspace, formation of 2 no. rear dormers, provision of 3 no. front roof lights and 1 no. rear roof light, new front porch (open), changes to existing fenestration and new external materials treatment.

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

• 76 Sebastian Avenue Shenfield Brentwood Essex CM15 8PP

  23/00009/HHA Submitted 10 Jan 2023 65m away

  Demolition of existing garage and chimneys. Raise height of ridge to include dormer window to rear and rooflights to sides to create second floor. Construction of part two storey part single storey side and rear extensions, single storey front extension to create new porch and alterations to fenestration. Construction of detached single storey outbuilding to rear.

  Granted Householder Extension Loft or dormer +2 9 docs
  Small domestic

• 63 Sebastian Avenue Shenfield Brentwood Essex CM15 8PW

  22/01727/HHA Submitted 13 Dec 2022 71m away

  Construction of entrance canopy to replace previous ground floor extension. Demolition of existing conservatory and construction of single storey rear extensions. Roof and fenestration alterations.

  Granted Householder Extension Demolition +1 8 docs
  Small domestic

• 65 Kilworth Avenue Shenfield Brentwood Essex CM15 8PT

  19/01480/FUL Submitted 28 Oct 2019 86m away

  Demolition of existing garage and conservatory, Increase in height of ridge to create first floor, single storey rear extension and remodelling of existing property and construction of porch

  Refused Full applications Extension Demolition 11 docs
  Small domestic

• 43 Kilworth Avenue Shenfield Essex CM15 8PT

  25/00087/HHA Submitted 27 Jan 2025 88m away

  Raise roof and eaves to create habitable accommodation within roof space. Demolition of existing single storey side element. Construction of part single storey part first floor side extension. Single storey and first floor rear extension. New flue. Fenestration alterations.

  Granted Householder Extension Demolition +1 10 docs
  Small domestic

• 43 Kilworth Avenue Shenfield Essex CM15 8PT

  26/00335/HHA Submitted 23 Mar 2026 88m away

  Raise roof to form steeper pitch, first floor side extension over garage, first floor rear extension over existing ground floor extension, single storey rear and side extension (wrap around) and alterations to fenestration.

  Granted Householder Extension Windows or glazing 9 docs
  Small domestic

• 26/00369/HHA Granted

  9 Nags Head Lane Brentwood Essex CM14 5NJ

  Proposed ground floor rear extension and garage conversion

  30 Mar 2026 Householder
• 26/00467/HHA Granted

  14 Friars Avenue Shenfield Essex CM15 8HY

  Erection of a single storey outbuilding (Retrospective)

  18 May 2026 Householder
• 26/00166/HHA Granted

  53 Kilworth Avenue Shenfield Essex CM15 8PT

  Enlargement of existing dwelling comprising side extension at first floor level, two storey rear extension with single storey rear projection, raising and extending of existing hipped roof to accommodate en-suite bedroom in newly formed roofspace, formation of 2 no. rear dormers, provision of 3 no. front roof lights and 1 no. rear roof light, new front porch (open), changes to existing fenestration and new external materials treatment.

  4 Mar 2026 Householder
• 26/00404/HHA Refused

  2 Chapel Croft Ingatestone Essex CM4 0BU

  Front single storey infill extension to include widening of porch and alterations to external materials to include black cladding.

  30 Apr 2026 Householder
• 26/00556/HHA Granted

  34 Hillside Walk Brentwood Essex CM14 4RB

  Demolition of garage and shed. Construction of two storey side extension, single storey side and rear extensions, addition of chimney and front entrance porch, flat roof dormer to the rear and two rooflights, extension to rear patio and alterations to fenestration

  14 May 2026 Householder