8 Blackwell Close, Harrow Weald, Harrow, HA3 6JY

1. 19 Jun 2026

   Received by Harrow

2. 12 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 14 August 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

The published feed does not show a live status for this application; the register on Harrow's own portal holds the authoritative version.

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.

• 17a Boxtree Lane, Harrow Weald, Harrow, HA3 6JU

  P/0320/23 Submitted 30 Jan 2023 150 yards away

  Single storey side extension with new roof over side entrance door to create additional habitable space to ground floor flat (1x2 bed)

  Refused Full applications Extension Roofing 7 docs
  Small domestic

• 15 Boxtree Lane, Harrow Weald, Harrow, HA3 6JU

  P/4015/21 Submitted 4 Oct 2021 150 yards away

  INVALID - house convert to two flats

  Withdrawn Full applications New dwelling
  Several homes

• 15 Boxtree Lane, Harrow Weald, Harrow, HA3 6JU

  P/0129/22 Submitted 14 Jan 2022 150 yards away

  Front porch; two storey side to rear extension; single storey rear extension; external alterations (demolition of rear extension)

  Granted Householder Extension Demolition 5 docs
  Small domestic

• 16 Silver Close, Harrow Weald, Harrow, HA3 6JT

  P/0848/20/PRIOR Submitted 28 Feb 2020 200 yards away

  Single Storey Rear Extension: 6.00 metres deep, 3.00 metres maximum height, 2.90 metres high to the eaves

  Refused Prior approval Extension 8 docs
  Small domestic

• 17 Silver Close, Harrow Weald, Harrow, HA3 6JT

  P/1953/20 Submitted 12 Jun 2020 200 yards away

  Single and two storey rear extension; External alterations

  Granted Householder Extension 8 docs
  Domestic

• 17 Silver Close, Harrow, HA3 6JT

  P/0642/20/PRIOR Submitted 18 Feb 2020 200 yards away

  Single storey rear extension: 6.0 Metres deep 3.5 Metres maximum height 2.8 Metres high to the eaves

  Granted Householder Extension 5 docs
  Small domestic

• PL/1791/26 Status unknown

  MELTON HOUSE Sudbury Hill, Sudbury, Harrow, HA1 3ND

  Single storey rear glazed extension; single storey side extension; installation of additional windows to front elevation at first floor level; external alterations (demolition of conservatory)

  Received 1 Jul, published by the council 12 Aug 2026 Householder
• PL/1766/26 Status unknown

  17 Sandymount Avenue, Stanmore, Harrow, HA7 4UA

  Vehicle access

  Received 29 Jun, published by the council 12 Aug 2026 Householder
• PL/1764/26 Status unknown

  9A Elmwood Avenue, Kenton, Harrow, HA3 8AJ

  Two storey rear extension at lower ground floor and ground floor level

  Received 29 Jun, published by the council 12 Aug 2026 Householder
• PL/1763/26 Status unknown

  160 Welbeck Road, West Harrow, Harrow, HA2 0RX

  Single storey rear extension

  Received 29 Jun, published by the council 12 Aug 2026 Householder
• PL/1760/26 Status unknown

  23 Sancroft Road, Wealdstone, Harrow, HA3 7NX

  Single storey front extension incorporating porch; single and two storey side to rear extension; single storey rear extension; rooflight in front roof slope; external alterations

  Received 29 Jun, published by the council 12 Aug 2026 Householder