27 Merlin Crescent, Edgware, Harrow, HA8 6JJ

1. 19 Sep 2025

   Received by Harrow

2. 12 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.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 78A Merlin Crescent, Edgware, Harrow, HA8 6JE

  PL/2330/24 Submitted 22 Aug 2024 56m away

  Alteration to roof to form end gable; rear dormer; three rooflights in front roofslope

  Granted Full applications Loft or dormer

• 45 Merlin Crescent, Edgware, Harrow, HA8 6JG

  PL/0880/25 Submitted 28 Mar 2025 79m away

  Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of three rooflights in front roofsloep and new window in gable end

  Granted Lawful development Loft or dormer Windows or glazing

• 3 Merlin Crescent, Edgware, HA8 6JL

  P/2693/06 Submitted 20 Sep 2006 95m away

  Single storey front and side extension

  Granted Full applications Extension 11 docs
  Small domestic

• 3 Merlin Crescent, Edgware, HA8 6JL

  P/2688/06CLP Submitted 19 Sep 2006 95m away

  Certificate of lawful proposed development: demolition of existing garage and erection of roof extension comprising hip to gable roof rear dormer window and two rooflights in front roofslope to semi-detached dwellinghouse

  Granted Lawful development Extension Loft or dormer +2 18 docs
  Domestic

• 3 Merlin Crescent, Edgware, Harrow, HA8 6JL

  PL/3311/24 Submitted 11 Dec 2024 95m away

  Single story front, side to rear extension (Demolition of attached garage)

  Granted Householder Extension Demolition
  Domestic

• 15 Merlin Crescent, Edgware, Harrow, HA8 6JL

  P/3700/22/PRIOR Submitted 25 Oct 2022 95m away

  Single storey rear extension: 6.00 metres deep, 3.40 metres maximum height and 3.00 metres high to the eaves

  Granted Prior approval Extension 5 docs
  Small domestic

• PL/1761/26 Status unknown

  1 Middle Road, Harrow On The Hill, Harrow, HA2 0HW

  Certificate of lawful development (proposed): Replacement of ground floor front bay window

  29 Jun 2026 Lawful development
• PL/1772/26 Status unknown

  114 Somervell Road, South Harrow, Harrow, HA2 8TT

  Certificate of Lawful Proposed Development: Demolition and replacement of first floor level and roof

  29 Jun 2026 Lawful development
• PL/1735/26 Status unknown

  222 Malvern Avenue, South Harrow, Harrow, HA2 9HE

  Certificate of lawful development (proposed): Rear dormer; installation of rooflight in front roofslope

  24 Jun 2026 Lawful development
• PL/1716/26 Status unknown

  59 Leamington Crescent, South Harrow, Harrow, HA2 9HH

  Certificate of Lawful Development (Proposed): Garden room with garden tools storage at rear (demolition of detached garage)

  22 Jun 2026 Lawful development
• PL/1696/26 Status unknown

  31 Chandos Road, Harrow, HA1 4QX

  Certificate of Lawful Development (Proposed): Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roof slope; window in end gable

  22 Jun 2026 Lawful development