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Planning application

21/00642/CLPD

121 Chalkdown Stevenage Herts SG2 7BN

Granted Stevenage Cert. of Lawful PROPOSED development

Proposal

Certificate of lawfulness for a single storey rear extension

As published by the council, reference 21/00642/CLPD

Timeline

Dates from the published record

  1. 7 Jun 2021

    Received by Stevenage

  2. 26 Jul 2021

    Decision issued: Certificate of Lawfulness Approved

  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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  • X/24/0247/CND Decided

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  • 23/00144/NMA Decided

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  • 21/00651/FPH Granted

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In Stevenage

  • 26/00564/CLEU Awaiting decision

    1 Sish Close Stevenage Herts SG1 3LT

    Lawful Development Certificate (Existing) for a Two storey side and rear extension

    28 Jul 2026 Lawful development
  • 26/00553/CLPD Awaiting decision

    8 Pigeonswick Close Stevenage Herts SG1 2GU

    Lawful Development Certificate (Proposed) for single storey rear extension

    27 Jul 2026 Lawful development
  • 26/00555/CLPD Awaiting decision

    25 Neptune Gate Stevenage Herts SG2 7SH

    Lawful Development Certificate (Proposed) for loft conversion

    27 Jul 2026 Lawful development
  • 26/00492/CLPD Granted

    42 Brimstone Drive Stevenage Herts SG1 4FX

    Lawful Development Certificate (Proposed) for loft conversion with rear dormer and 3 velux to front

    30 Jun 2026 Lawful development
  • 26/00524/CLPDFT Granted

    75 Wheatlands Stevenage Herts SG2 0JU

    Lawful Development Certificate (Proposed) construction of loft conversion.

    14 Jul 2026 Lawful development