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Planning application

23/00142/LDCP

18 Deards End Lane Knebworth Hertfordshire SG3 6NL

Granted North Hertfordshire Lawful Development Certificate Proposed

Proposal

Installation of 2 No. rear roof lights to existing roof slope

As published by the council, reference 23/00142/LDCP

Timeline

Dates from the published record

  1. 20 Jan 2023

    Received by North Hertfordshire

  2. 7 Mar 2023

    Decision issued: Granted

  3. 24 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

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.

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

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  • 21/02024/EC Granted

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  • 26/00838/FPH Decided

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In North Hertfordshire

  • 26/01621/LDCP Granted

    21 Danesbury Park Road Welwyn Hertfordshire AL6 9SH

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  • 26/01293/LDCP Refused

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    22 Jun 2026 Lawful development
  • 26/01557/LDCP Granted

    11 Matthew Gate Hitchin Hertfordshire SG4 9EQ

    Insertion of rear box dormer with Juliet balcony and 2 no. front rooflights to facilitate loft conversion to habitable space

    16 Jun 2026 Lawful development
  • 26/01672/LDCP Refused

    3 Westfield Lane Hitchin Hertfordshire SG5 2HE

    Alterations to existing roof to include hip to gable roof extension and insertion of rear dormer window and second floor side window to facilitate loft conversion into habitable accommodation.

    2 Jul 2026 Lawful development