90 Napsbury Avenue London Colney Hertfordshire Al2 1Ls

This site has had 2 applications since 2016: 2 approved, 0 refused.

• 5/2017/1743 Granted

  90 Napsbury Avenue London Colney Hertfordshire Al2 1Ls

  Part single, part two storey rear extension with alterations to openings following removal of conservatory (retrospective)

  Decided 8 Aug 2017 Householder

1. 13 Jun 2016

   Received by St Albans

2. 14 Jun 2016

   Validated

   Checked as complete and ready for consideration.

3. 4 Aug 2016

   Decision issued: Certificate of Lawfulness Approved

4. 21 Aug 2026

   Added to PlanIndex

St Albans granted permission on 4 August 2016, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 52 Napsbury Avenue London Colney Hertfordshire Al2 1Ls

  5/2026/1277 Submitted 1 Jul 2026 50 yards away

  Certificate of Lawfulness (proposed) - The proposed development comprises building operations associated with the loft conversion of the existing roof space to provide additional habitable accommodation. The works include the construction of a rear dormer

  Granted Lawful development Loft or dormer 5 docs

• 90 Napsbury Avenue London Colney Hertfordshire Al2 1Ls

  5/2017/1743 Submitted 18 Jun 2017 50 yards away

  Part single, part two storey rear extension with alterations to openings following removal of conservatory (retrospective)

  Granted Householder Extension 9 docs
  Small domestic

• 62 Napsbury Avenue London Colney Hertfordshire Al2 1Ls

  5/2026/1396 Submitted 21 Jul 2026 50 yards away

  88% historically approved · decision due ~12 Oct

  Conversion of a four-bedroom dwelling to one three-bedroom house and one two-bedroom house following part single and part two storey rear extension and roof alterations to front elevation

  Awaiting decision Extension Roofing 12 docs
  Domestic

• 80 Kings Road London Colney Hertfordshire Al2 1Ep

  5/2026/0655 Submitted 30 Mar 2026 50 yards away

  Certificate of Lawfulness (proposed) - Single storey rear extension

  Granted Lawful development Extension 5 docs
  Small domestic

• 132 & 132A Kings Road London Colney Hertfordshire Al2 1Ep

  5/2017/2602 Submitted 18 Sep 2017 50 yards away

  Loft conversion to incorporate the conversion to four, one bedroom flats

  Granted New dwelling Loft or dormer 12 docs

• 139 Kings Road London Colney Hertfordshire Al2 1Er

  5/2016/2999 Submitted 3 Oct 2016 100 yards away

  Demolition of garage and construction of two, attached, two bedroom dwellings with associated landscaping, parking and new extended vehicle crossover. Single storey rear extension and replacement porch to existing property.

  Granted Extension Demolition 17 docs
  Small domestic

• 5/2026/1638 Granted

  1 Castle Rise Wheathampstead Hertfordshire Al4 8Hx

  Certificate of Lawfulness (proposed) - Proposed loft hip to gable with rear dormer, internal alterations and all associated works at 1 Castle Rise, AL4 8HX

  Received 7 Sep, published by the council 13 Sep 2026 Lawful development
• 5/2026/1622 Granted

  9 Necton Road Wheathampstead Hertfordshire Al4 8At

  Certificate of Lawfulness (proposed) - Dormer to rear elevation to existing bedroom. new window to rear

  Received 2 Sep, published by the council 13 Sep 2026 Lawful development
• 5/2026/1561 Granted

  125 New House Park St Albans Hertfordshire Al1 1Uh

  Certificate of Lawfulness (existing) - The retrospective development comprises minor external alterations to the rear elevation of the dwellinghouse at 125 New House Park. The applicant seeks a Certificate of Lawfulness (Existing) under Section 191 of the

  Received 21 Aug, published by the council 31 Aug 2026 Lawful development
• 5/2026/1772 Awaiting decision

  14 Ashley Road St Albans Hertfordshire Al1 5Da

  Certificate of Lawfulness (Proposed) - Loft Conversion, Hip to gable, Rear dormer

  Received 29 Sep, published by the council 11 Oct 2026 Lawful development
• 5/2026/1759 Awaiting decision

  2 Grimston Road St Albans Hertfordshire Al1 5Ep

  Certificate of Lawfulness (Proposed) - Erection of a single-storey detached timber log cabin with a pent (mono-pitch) roof in the rear garden, for purposes incidental to the enjoyment of the dwellinghouse (domestic storage and hobby workshop). Footprint 9

  Received 28 Sep, published by the council 11 Oct 2026 Lawful development