Planning application
DC/26/0256/CLP
20 Adastral Close Newmarket Suffolk CB8 0PX
Proposal
Application for lawful development certificate for proposed use or development - single storey rear extension
As published by the council, reference DC/26/0256/CLP
Timeline
Dates from the published record
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16 Feb 2026
Received by West Suffolk
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10 Apr 2026
Decision issued: Approve application
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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.
Nearby applications
Within 500 metres
-
DC/25/1636/TPO Granted
19 Stirling Gardens Newmarket Suffolk CB8 0ER
TPO 026(1958) tree preservation order - One beech (marked on plan and within A1 on order) overall crown reduction by up to 2 metres, and crown lift up to 3 metres above ground level
-
DC/26/0242/HH Granted
57 Edinburgh Road Newmarket Suffolk CB8 0QD
Householder planning application - a. single storey front extension b. render to front elevation and c. first floor extension above existing garage
-
DCON(A)/24/0485 Granted
61 Edinburgh Road Newmarket Suffolk CB8 0QD
Application to discharge condition 3 (flood resistance) of DC/24/0485/HH
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DC/26/0898/HH Awaiting decision
64 Edinburgh Road Newmarket Suffolk CB8 0QD
Householder planning application - single storey rear extension (following demolition or existing conservatory)
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DC/26/0400/VAR Granted
121 Freshfields Newmarket Suffolk CB8 0EH
Planning application - Variation of condition 1 (opening hours) of DC/19/1512/P3CPA to extend the opening hours to Monday to Saturday 7am to 10pm Sunday and Bank Holidays 7am to 8pm
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DC/26/0173/HH Granted
22 Edinburgh Road Newmarket Suffolk CB8 0QF
Householder planning application - a. raise roof to provide additional habitable accommodation b. changes to fenestration on front elevation including timber cladding c. one dormer and one rooflight on front elevation d. single storey rear extension including air source heat pump and e. rooflights on rear elevation f. render all elevations
Other lawful development applications
In West Suffolk
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DC/26/0810/CLP Granted
16 Linton Close Newmarket Suffolk CB8 0AE
Application for lawful development certificate for proposed use or development - convert existing integral garage into a habitable dining room including infill garage doors and insert window
-
DC/26/0794/CLP Granted
9 High Street Newmarket Suffolk CB8 8LX
Application for lawful development certificate for proposed use or development - change of use within class E (ground floor) to cafe/restaurant
-
DC/26/1030/CLP Withdrawn
Larchfield Mere Farm Lane Great Barton Suffolk IP31 2PH
Application for lawful development certificate for proposed use or development - single storey side extension set back from the wall forming the existing principal elevation
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DC/26/0427/CLE Granted
The Old Forge, Annexe The Street Bradfield Combust Suffolk IP30 0LP
Application for lawful development certificate - Use of the detached building within the site as a self-contained single dwellinghouse
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DC/26/1102/CLE Awaiting decision
Mulberry House 20 Greys Close Cavendish Suffolk CO10 8BT
Application for lawful development certificate for existing use or development - seeking confirmation of commencement of approved development DC/23/0965/HH through installation of front elevation roof light