427 Lonsdale Road Stevenage Herts SG1 5DS
Refused on 19 June 2026
Council decision: Refusal of Planning PermissionDelegated (officer decision)1 reason for refusal
Proposal
Erection of two storey side extension and insertion of new window at first floor level to rear elevation.
- Received
- 27 April 2026
- Decision level
- Delegated (officer decision)
- Council
- Stevenage Borough Council
- Ward
- Almond Hill
- ReceivedReceived27 Apr
- ValidatedValidated27 Apr
- Consult.Consultation20 May
- TargetTarget Date22 Jun
- DecidedDecided19 Jun
Decided in 53 days (council typically 49)
About this application
This is a full planning application for a two storey side extension at 427 Lonsdale Road Stevenage Herts SG1 5DS. Stevenage has handled 865 applications of this type. This one was decided in 53 days, 4 days longer than Stevenage's typical decision time. There has been 1 other application at this address. In the past year there have been 23 applications across Almond Hill. We hold 993 applications in total for the SG1 postcode area.
92% of full 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
Why it was refused
- The flat roof design of the two-storey side extension would appear incongruous and unsympathetic to the architectural character of the application property and neighbouring dwellings. The extension by reason of its poor roof design would also harm the character and appearance of the area. In these respects, the proposal is contrary to policies GD1 and SP8 of the Stevenage Borough Local Plan 2011 - 2031 (2019) and Local Plan Partial Review (2024), the Council's Design Guide SPD (2025), National Planning Policy Framework (2024) and the Planning Practice Guidance.
From the council's decision notice.
Application details
- Postcode
- SG1 5DS
- Application type
- Householder Applications
- Scale / size
- Small
- Parish
- To Follow
Planning application dates
- Date validated
- 27 April 2026
- Consultation expiry
- 20 May 2026
- Neighbour consultation start
- 28 April 2026
- Neighbour consultation end
- 20 May 2026
- Last date for comments
- 20 May 2026
- Target decision date
- 22 June 2026
Applicant and agent
- Applicant
- Private applicant
- Agent address
- Heather Moye Corner House 1 Balmoral Road Hitchin SG5 1XG
Planning decision
- Case officer
- Aliya Muskaan Khalil
- 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
1 other application at this property, newest first.
Source: Stevenage
Track this application
Get email alerts when there is a planning decision or status change.
Get email alerts near SG1
New planning applications delivered to your inbox daily.
Around this site
Nearby applications
- 427 Lonsdale Road Stevenage Herts SG1 5DS22/00134/FPH · FullApproved0.0 mi
- 429 - 439 Lonsdale Road Stevenage Herts SG1 5DT20/00646/FP · FullApproved0.0 mi
- 390- 398 Grace Way Stevenage Herts SG1 5AR21/01320/FP · FullApproved0.0 mi
- 356 - 366 Grace Way Stevenage Herts SG1 5AP21/01317/FP · FullApproved0.1 mi
- 452-460 Grace Way Stevenage Herts SG1 5AT21/01321/FP · FullApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Stevenage Electrical Engineers LtdElectrician0.0 mi
- Design A ViewWindow & Door Installer0.1 mi
- Cio Smart Electric LtdStevanage0.2 mi
- Linehan Mechanical and Electrical LtdElectrician0.2 mi
Planning something similar?
See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.