17 Sandymount Avenue, Stanmore, Harrow, HA7 4UA

1. 29 Jun 2026

   Received by Harrow

2. 12 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 24 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, which usually means the council register holds more recent detail than the copy PlanIndex receives.

The council portal linked on this page carries the authoritative version, including the documents, any consultation deadline and the decision once made. PlanIndex refreshes its copy of the register on a daily cycle.

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

• 38 Craigweil Drive, Stanmore, Harrow, HA7 4TU

  PL/2414/24 Submitted 2 Sep 2024 55m away

  Certificate of Lawful Development (Proposed): Alterations to roof to form gable end, rear dormer, 3 No. rooflights to front elevation, 1 No. window to east elevation

  Granted Lawful development Loft or dormer Windows or glazing

• 66 Dene Gardens, Stanmore, HA7 4TD

  P/2805/09 Submitted 1 Dec 2009 90m away

  Non material amendment to planning permission p/1616/09 to provide revised dimensions of steplift and extension to hardsurfacing in front garden

  Decided Amendments Extension 6 docs

• 40 Dene Gardens, Stanmore, Harrow, HA7 4TD

  P/4962/21 Submitted 21 Dec 2021 90m away

  Conversion of loft to provide additional habitable roofspace for first floor flat (1 x 4 beds)

  Granted Householder Loft or dormer 9 docs
  Domestic

• 66 Dene Gardens, Stanmore, HA7 4TD

  P/1616/09 Submitted 13 Jul 2009 90m away

  Step lift to front entrance extension to hardsurfacing in front garden

  Granted Full applications Extension 13 docs

• 42 Dene Gardens, Stanmore, HA7 4TD

  EAST/1166/01/LA3 Submitted 5 Nov 2001 90m away

  Handrail to flat access

  Granted Other

• 98A Merrion Avenue, Stanmore, Harrow, HA7 4RU

  PL/2166/24 Submitted 6 Aug 2024 124m away

  Single storey front extension incorporation front porch, Two storey side extension, Single storey rear extension, Alterations to roof to raise ridge height, Rooflights in both side and rear roof slopes, External alterations (Demolition of side and rear extensions)

  Refused Householder Extension Loft or dormer +2
  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)

  1 Jul 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

  29 Jun 2026 Householder
• PL/1763/26 Status unknown

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

  Single storey rear extension

  29 Jun 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

  29 Jun 2026 Householder
• PL/1755/26 Status unknown

  64 Alicia Gardens, Kenton, Harrow, HA3 8JE

  Demolition of an existing single storey attached garage and the construction of a part single and part double storey side and rear extension, part single storey front extension with attached porch and the installation of 1No. side facing roof light to main roof.

  26 Jun 2026 Householder