Planning application
80 London Road Knebworth Hertfordshire SG3 6HB
Works: Extension Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
Two storey rear extension with Juliet balcony, front porch and addition of pitched roof to existing garage and replace garage door with a window to facilitate conversion of garage into habitable accommodation following removal of existing porch. (renewal of previously approved planning permission 22/01469/FPH granted 26.07.2022)
As published by the council, reference 26/00208/FPH
Application record
- Reference
- 26/00208/FPH
- Type
- Full Permission Householder
- Status
- Decided
- Decision
- Conditional Permission
- Received
- 16 Mar 2026
- Validated
- 16 Mar 2026
- Decided
- 7 May 2026
- Ward
- Knebworth Ward
- Parish
- Knebworth Parish Council
- Decision by
- Delegated
- Postcode
- SG3 6HB
Timeline
Dates from the published record
-
16 Mar 2026
Received by North Hertfordshire
-
7 May 2026
Decision issued: Conditional Permission
-
9 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
10 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 documentsAfter the decision
The process from here
The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.
If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.
About householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
-
57 Haygarth Knebworth Hertfordshire SG3 6HF
99% historically approved · decision due ~13 Oct
T1: Yew - Clear from path & reduce away from no 68. T2: Beech- Girdle ivy at 1.5m. T3: Oak - Remove 4x Elm, 3x Sycamore, 1x Norway Maple from under its crown & reduce lowest roadside limb that is resting in Sycamore by 2-3m & Second limb above Highway by 2-3m. T4, T5: Holly - Girdle ivy at 1.5m. T6: 4x Hornbeam- Reduce/re-pollard back to boundary. T7: Oak, 2x Sycamore - Remove from beneath Ash, Oak & Lime. T8: Philadelphus - Remove 2x ivy covered stems & 1x Ivy covered
Awaiting decision Trees -
76 Pondcroft Road Knebworth Hertfordshire SG3 6DE
90% historically approved · decision due ~31 Aug
Single storey side and rear extensions with car port following removal of existing detached rear garage and shed.
Awaiting decision ExtensionSmall domestic -
57 Pondcroft Road Knebworth Hertfordshire SG3 6DE
90% historically approved · decision due ~30 Sep
Single storey rear extension following demolition of existing side/rear element.
Awaiting decision Extension DemolitionSmall domestic -
76 Pondcroft Road Knebworth Hertfordshire SG3 6DE
90% historically approved · decision due ~11 Aug
Insertion of L shaped rear dormer with Juliet balcony and 3 no. front roof lights to facilitate loft conversion to habitable space
Decided Loft or dormer -
37 Haygarth Knebworth Hertfordshire SG3 6HF
T1 Ash - Remove lowest branch growing towards flats.
Granted Trees 4 docs -
78 London Road Knebworth Hertfordshire SG3 6HB
90% historically approved · decision due ~1 Oct
Single storey rear extension. Alterations to existing garage including insertion of front window following removal of garage door and raising roof to facilitate garage conversion. Erection of open-sided front porch and pitched roof above existing front bay window.
Awaiting decision Extension Windows or glazingSmall domestic
Other householder applications
In North Hertfordshire
-
26/00371/FPH Decided
12 Dale Close Hitchin Hertfordshire SG4 9AS
Replacement raised hipped roof and insertion of front rooflight and two rear dormers to facilitate loft conversion into habitable accommodation. Two storey and part single storey side and rear extensions and front porch following demolition of existing side and rear extensions. Alterations to fenestration to include insertion of first floor side window. External cladding and Installation of rear raised patio and steps.
-
26/00904/FPH Decided
4 Leete Place Royston Hertfordshire SG8 5DX
Single storey side and rear extension, open-sided front porch, replacement roof including installation of rooflights, removal of chimney and alterations to existing fenestration following demolition of existing store. Installation of vehicular access via dropped kerb and vehicle crossover including hardstanding to provide No.2 parking spaces.
-
26/01380/FPH Decided
15 Ninesprings Way Hitchin Hertfordshire SG4 9NQ
Part two storey and part single storey side extension and single storey rear extension following demolition of existing side element and rear conservatory. Front porch, alterations to fenestration and hard and soft landscaping works. External cladding and rendering.
-
26/01414/FPH Decided
80 Willian Road Hitchin Hertfordshire SG4 0LT
Replacement raised roof to facilitate additional accommodation at first floor level. Two storey rear extension following removal of existing shed. Alterations to fenestration and external render. Installation of front hardstanding and provision of two parking spaces.
-
26/01062/FPH Decided
47 Common Rise Hitchin Hertfordshire SG4 0HN
Two storey and part single storey rear extension following demolition of existing rear element.