Topstreet Farmhouse 28 Crabtree Lane Harpenden Hertfordshire Al5 5Nu

1. 6 Oct 2016

   Received by St Albans

2. 16 Oct 2016

   Validated

   Checked as complete and ready for consideration.

3. 9 Dec 2016

   Decision issued: DC3 Conditional Permission

4. 9 Aug 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

• 65 Milton Road Harpenden Hertfordshire Al5 5Lt

  5/2021/0959 Submitted 30 Mar 2021 69m away

  Single storey front and rear extensions with rooflight, loft conversion to habitable accommodation with front rooflights and rear dormer windows and alterations to openings

  Decided Householder Extension Loft or dormer +1 28 docs
  Small domestic

• 37 Meadow Walk Harpenden Hertfordshire Al5 5Tf

  5/2026/1111 Submitted 8 Jun 2026 143m away

  Proposed first floor accommodation over bungalow

  Decided Householder 8 docs
  Domestic

• 46 Meadow Walk Harpenden Hertfordshire Al5 5Tg

  5/2026/0571 Submitted 23 Mar 2026 159m away

  Two-storey side and part single, part two-storey rear wrap around extension following demolition of existing garage and conservatory

  Decided Householder Extension Demolition 12 docs
  Small domestic

• 72 Crabtree Lane Harpenden Hertfordshire Al5 5Ns

  5/2026/0933 Submitted 13 May 2026 232m away

  Certificate of Lawfulness (proposed) - Demolition of the existing conservatory and the construction of a replacementsingle-storey orangery extension to the rear of the dwellinghouse.Works include associated foundations, external walls, glazed roof lantern

  Decided Lawful development Extension Demolition +1 5 docs
  Small domestic

• 49 Topstreet Way Harpenden Hertfordshire Al5 5Tx

  5/2026/0672 Submitted 31 Mar 2026 233m away

  Demolition of existing and construction of two semi-detached dwellings

  Withdrawn Demolition 39 docs

• 44 Southdown Road Harpenden Hertfordshire Al5 1Pg

  5/2021/1256 Submitted 27 Apr 2021 234m away

  Construction of single storey side extension. Garage conversion with adjustments to roof

  Decided Householder Extension 8 docs
  Small domestic

• 5/2026/1173 Decided

  6 Longacres St Albans Hertfordshire Al4 0Dr

  Demolition of existing outbuilding and construction of single storey rear extension

  18 Jun 2026 Householder
• 5/2026/0299 Decided

  12 Rowlatt Drive St Albans Hertfordshire Al3 4Nb

  Demolition of existing side and rear extension and construction of a canopy porch, part single, part two storey front, two storey side and single storey rear extension

  17 Feb 2026 Householder
• 5/2026/0318 Refused

  7 Ardens Way St Albans Hertfordshire Al4 9Uw

  Demolition of existing side canopy, detached garage, rear patio and garden shed and the construction of two storey front, side and rear extensions, together with part single storey rear extension and a front porch canopy and extension to driveway

  19 Feb 2026 Householder
• 5/2026/1139 Decided

  50 Fontmell Close St Albans Hertfordshire Al3 5Hu

  Single storey rear extension and side windows with top openers over 1.7m high

  10 Jun 2026 Householder
• 5/2026/0525 Decided

  11 Hillside Road Harpenden Hertfordshire Al5 4Bs

  Garage conversion, with part roof extension and new front porch extension

  17 Mar 2026 Householder