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Planning application

5/2026/1100

Kinsbourne House The Common Kinsbourne Green Harpenden Hertfordshire Al5 3Pe

Decided St Albans Certificate of Lawfulness - (proposed)

Proposal

Certificate of Lawfulness (proposed) - Removal of the existing hipped roof over the south projection and part demolished east wall. Build of a single storey rear extension between the south projection and the Drawing Room wall to the east. Construct a hip

As published by the council, reference 5/2026/1100

Timeline

Dates from the published record

  1. 8 Jun 2026

    Received by St Albans

  2. 3 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 24 Jul 2026

    Added to PlanIndex

  4. 2 Aug 2026

    Status changed to Under Consideration

    Previously Under Consultation.

After the decision

The process from here

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.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

  • 5/2026/1163 Decided

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  • 5/2026/1051 Decided

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    Reconfiguration of existing light well and extension to existing basement adjacent to main West Barn

    29 May 2026 0m away Householder
  • 5/2026/1303 Decided

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  • 5/2026/1280 Decided

    441 Luton Road Harpenden Hertfordshire Al5 3Qe

    Proposed unification of approved new front dormer and Velux to front elevation and 2 no new rear dormer.

    1 Jul 2026 375m away Householder
  • 5/2026/1114 Decided

    24 Tintern Close Harpenden Hertfordshire Al5 3Nz

    Single storey side and rear extension. Infill of existing overhanging front elevations, new dormer to side elevation, alterations to front door (on side elevation) and replacement roof to garage

    9 Jun 2026 405m away Householder

In St Albans

  • 5/2026/1430 Decided

    42 Holywell Hill St Albans Hertfordshire Al1 1Bx

    Certificate of Lawfulness (proposed works to a Listed Building) - Replace master bathroom suite on 1st floor of property. Modern bathroom to be replaced with new suite, including new shower cubicle. It will use existing water and waste routes , and tiling

    27 Jul 2026 Lawful development
  • 5/2026/0901 Granted

    37 Saxon Road Wheathampstead Hertfordshire Al4 8Nz

    Certificate of Lawfulness (proposed) - Timber framed garden room to be built on ground screw foundation. Dimensions 3m x 4.2 & under 2.5m in height. This will be 1.4m distance from boundary to neighbour. This will be situation at the end of the garden

    8 May 2026 Lawful development
  • 5/2026/1399 Decided

    10 Birchwood Way Park Street St Albans Hertfordshire Al2 2Sg

    Certificate of Lawfulness (proposed) - Loft conversion with rear dormer and 3No. roof lights to front elevation

    22 Jul 2026 Lawful development
  • 5/2026/1031 Granted

    5 Flamsteadbury Lane Redbourn Hertfordshire Al3 7Dh

    Certificate of Lawfulness (proposed) - Construction of single storey rear 3m extension, maximum eaves height 3m and maximum ridge height 4m

    26 May 2026 Lawful development
  • 5/2026/1035 Refused

    30 Culver Road St Albans Hertfordshire Al1 4Ed

    Certificate of Lawfulness (proposed) - Loft conversion with rear dormer and two velux to front

    22 May 2026 Lawful development