Planning application
17 Byng Road Barnet EN5 4NW
Works: Extension Demolition Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Single storey rear extension following demolition of the existing conservatory
As published by the council, reference 26/1067/192
Application record
- Reference
- 26/1067/192
- Type
- Proposed Lawful Development Certificate
- Status
- Lawful
- Decision
- Lawful
- Received
- 19 Mar 2026
- Validated
- 19 Mar 2026
- Decided
- 14 Apr 2026
- Ward
- High Barnet
- Decision by
- Delegated Decision
- Postcode
- EN5 4NW
Site history
Applications at this address on the Barnet register
This site has had 3 applications since 2025: 1 approved, 0 refused.
-
25/4700/HSE Awaiting decision
17 Byng Road Barnet EN5 4NW
Single storey rear extension with 1no. roof lantern following demolition of the existing conservatory
-
25/3975/PNH Awaiting decision
17 Byng Road Barnet EN5 4NW
Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.00m and eaves height of 2.50m
Timeline
Dates from the published record
-
19 Mar 2026
Received by Barnet
-
14 Apr 2026
Decision issued: Lawful
-
25 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
QM Designs Agent, a design practice
22 applications on PlanIndex · across 6 councils · 87% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
5 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Barnet granted permission on 14 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
17 Byng Road Barnet EN5 4NW
58% historically approved · decision due ~26 Nov
Single storey rear extension with a proposed depth of 6.00m, maximum height of 3.00m and eaves height of 2.50m
Awaiting decision Prior approval Extension 4 docsSmall domestic -
17 Byng Road Barnet EN5 4NW
77% historically approved · decision due ~20 Jan
Single storey rear extension with 1no. roof lantern following demolition of the existing conservatory
Awaiting decision Householder Extension Demolition +1 6 docsSmall domestic -
31 Byng Road Barnet EN5 4NW
Single storey rear extension with 2no. rooflights
Refused Householder Extension Loft or dormer 8 docsSmall domestic -
31 Byng Road Barnet EN5 4NW
58% historically approved · decision due ~10 Nov
Single storey rear extension with a proposed depth of 5.50m, maximum height of 4.00m and an eaves height of 3.00m
Awaiting decision Prior approval Extension 4 docsSmall domestic -
2B Alston Road Barnet EN5 4ET
Single storey rear extension with green roof. New rear permeable paving. Alterations to landscaping including grassed area and new bin store
Withdrawn Householder Extension 5 docsSmall domestic -
34 Byng Road Barnet EN5 4NR
58% historically approved · decision due ~8 Sep
Single storey rear extension with a proposed depth of 6 metres, maximum height of 3 metres and eaves height of 3 metres, following demolition of the existing rear conservatory.
Awaiting decision Prior approval Extension DemolitionSmall domestic
Other lawful development applications
In Barnet
-
26/2679/192 Granted
21 Myddelton Park London N20 0JH
Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).
-
26/1907/191 Granted
8 Golders Manor Drive London NW11 9HT
Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)
-
26/2059/192 Refused
Low Ridge Rowley Lane Barnet EN5 3HS
Erection of a rear outbuilding
-
26/2066/192 Granted
355 Hendon Way London NW4 3NB
Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)
-
26/2525/192 Granted
39 Ridgeway Avenue Barnet EN4 8TN
Single storey rear extension