Planning application
26/00564/CLEU
1 Sish Close Stevenage Herts SG1 3LT
Proposal
Lawful Development Certificate (Existing) for a Two storey side and rear extension
As published by the council, reference 26/00564/CLEU
Timeline
Dates from the published record
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28 Jul 2026
Received by Stevenage
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29 Jul 2026
Validated
Checked as complete and ready for consideration.
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1 Aug 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Stevenage for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
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
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26/00177/FPH Awaiting decision
1 Sish Close Stevenage Herts SG1 3LT
Retrospective consent for the construction of a two storey side and rear extension
-
26/00396/TPTPO Granted
41 Sish Lane Stevenage Herts SG1 3LS
Works to trees protected by TPO 94: Oak (T1) - fell and remove stump, plant 1no. replacement tree; Oak (T2) - reduce crown 1m, thin crown 20%, remove epicormic growth and ivy.
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26/00443/COND Decided
Tennis Courts King George V Playing Field Sish Lane Stevenage Herts SG1 3LS
Discharge of condition 9 (Construction Traffic Management Plan) attached to planning permission reference number 25/00894/FP.
-
26/00403/FPH Granted
2 Lintott Close Stevenage Herts SG1 3LZ
Installation of a Air Source Heat Pump to the front elevation of the property
-
26/00408/FP Awaiting decision
Land To The West Of The Tarmac Tennis Courts King George V Playing Field Sish Lane Stevenage Herts SG1 3LS
Installation of Space Age Musical Pavilion
-
25/00884/FP Awaiting decision
Aldi Stores Fairlands Way Stevenage Herts SG1 1FZ
Incorporation of existing car park into foodstore car park, creation of a pedestrian route and ancillary works
Other lawful development applications
In Stevenage
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26/00553/CLPD Awaiting decision
8 Pigeonswick Close Stevenage Herts SG1 2GU
Lawful Development Certificate (Proposed) for single storey rear extension
-
26/00555/CLPD Awaiting decision
25 Neptune Gate Stevenage Herts SG2 7SH
Lawful Development Certificate (Proposed) for loft conversion
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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
-
26/00524/CLPDFT Granted
75 Wheatlands Stevenage Herts SG2 0JU
Lawful Development Certificate (Proposed) construction of loft conversion.
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26/00527/CLPD Awaiting decision
47 Nodes Drive Stevenage Herts SG2 8AJ
Lawful Development Certificate (Proposed) for detached garden room