20 Greydells Road Stevenage Herts SG1 3NL
Approved on 5 October 2020
Council decision: Certificate of Lawfulness ApprovedDelegated (officer decision)
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Certificate of lawfulness (Proposed) for a rear dormer and 3 no. roof lights
- Received
- 26 August 2020
- Decision level
- Delegated (officer decision)
- Council
- Stevenage Borough Council
- Ward
- Old Town
- ReceivedReceived26 Aug
- ValidatedValidated28 Aug
- Consult.Consultation
- TargetTarget Date23 Oct
- DecidedDecided5 Oct
Decided in 38 days (council typically 49)
About this application
This is an outline application for a dormer extension at 20 Greydells Road Stevenage Herts SG1 3NL. Stevenage has handled 301 applications of this type. This one was decided in 40 days, 9 days quicker than Stevenage's typical decision time. There has been 1 other application at this address. In the past year there have been 60 applications across Old Town. We hold 991 applications in total for the SG1 postcode area.
85% of outline applications at Stevenage Borough Council were approved. Across all application types, the council typically decides in about 7 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- SG1 3NL
- Application type
- Cert. of Lawful PROPOSED development
- Scale / size
- Small
Planning application dates
- Date validated
- 28 August 2020
- Target decision date
- 23 October 2020
- Permission expires
- 5 October 2023
Applicant and agent
- Agent address
- SOSA Architects Ltd 9 Church Lane Northaw Potters Bar Herts EN6NX
Planning decision
- Statutory period
- 56 days
Site constraints
Designations that overlap or adjoin the site outline.
- Article 4 direction: Stevenage
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (23)
flood storage areas, conservation areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Planning history at this site
2 other applications at this property, newest first.
Source: Stevenage
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Around this site
Nearby applications
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For applicants and trades
Contractors near this project
Find contractors for loft conversions near this site- Linehan Mechanical and Electrical LtdElectrician0.1 mi
- Design A ViewWindow & Door Installer0.1 mi
- T J Start Electrical LtdElectrician0.2 mi
- Stevenage Electrical Engineers LtdElectrician0.3 mi
Planning something similar?
See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.