Planning application
Parliamentary Estate Parliament Street London SW1A 2NU
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
Amendments to planning permission dated 17 July 2026 (RN: 26/03093/FULL) for excavation of trial trenches within and adjacent to the Northern Parliamentary Estate. (Linked with 26/03094/LBC); NAMELY, to reposition and alter six trial trenches.
As published by the council, reference 26/05113/NMA
Application record
- Reference
- 26/05113/NMA
- Category
- Amendments
- Status
- Decided
- Received
- 29 Jul 2026
- Validated
- 29 Jul 2026
- Postcode
- SW1A 2NU
Timeline
Dates from the published record
-
29 Jul 2026
Received by Westminster
-
9 Aug 2026
Added to PlanIndex
After 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 amendments applications
How this application type works
An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.
Nearby applications
Within 500 metres
-
Parliamentary Estate Parliament Street London SW1A 2NU
87% historically approved · decision due ~18 Jun
Installation of a borehole and associated works, including plant and pipework, with internal basement alterations and temporary works (Linked to 26/02700/LBC)
Awaiting decision Full applications 1 doc -
Parliamentary Estate Parliament Street London SW1A 2NU
90% historically approved · decision due ~18 Jun
Installation of a borehole and associated works, including plant and pipework, with internal basement alterations and temporary works (Linked to 26/02699/FULL)
Awaiting decision Heritage and listed buildings 1 doc -
Parliamentary Estate Parliament Street London SW1A 2NU
87% historically approved · decision due ~6 Jul
Excavation of trial trenches within and adjacent to the Northern Parliamentary Estate. (Linked with 26/03094/LBC)
Awaiting decision Full applications 5 docs -
Parliamentary Estate Parliament Street London SW1A 2NU
90% historically approved · decision due ~6 Jul
Excavation of trial trenches within and adjacent to the Northern Parliamentary Estate. (Linked with 26/03093/FULL)
Awaiting decision Heritage and listed buildings 3 docs -
9 Bridge Street London SW1A 2JR
Display of six internally illuminated digital screen behind the existing window in place of existing vinyls, measuring 1.57m X 1.46m.
Decided Advertising Windows or glazing 11 docs -
Westminster Station Bridge Street London SW1A 2JR
Display of three non-illuminated fascia signs measuring 0.75m x 1.69m, 0.75m x 1.74m and 0.75m x 1.71m and one non-illuminated wall panel 1.4m x 0.66m.
Granted Advertising 2 docs
Other amendments applications
In Westminster
-
26/05886/NMA Awaiting decision
10 Spring Gardens London SW1A 2BN
Amendments to planning permission dated 10th July 2025 (RN 25/00695/FULL) for the Use of part-ground, first, sixth, seventh and eighth floor levels as an Embassy (sui generis). Associated external alterations to the ground floor facade on Carlton House Terrace, and part ground floor to Piazza (Spring Gardens) frontage. External alterations to the doors. Installation of roof plant and security screens to the eighth floor. NAMELY, Addition of external attached building signage on West Elevation and South Elevation; Addition of two flagpoles on West Elevation; Addition of a parcel pass through, rather than fixed panel, to door on North Elevation; and omission of smoke vent and replacement with new paving to match existing paving.
-
26/05881/NMA Awaiting decision
50A Warlock Road London W9 3LW
Amendments to planning permission dated 11 August 2026 (RN: 26/04158/FULL) for the: Erection of a single-storey rear extension at lower ground floor level; replacement of existing rear window with a door at ground floor level and creation of terrace with associated railings/screening; and associated external alterations. NAMELY, revise the height of the rear elevation kitchen French doors.
-
26/05798/NMA Awaiting decision
3 Blenheim Road London NW8 0LU
Amendments to planning permission dated 18th January 2024 (RN:22/04886/FULL) for Excavation of single-storey basement extension with lightwells to front and rear gardens; Erection of single-storey extension to rear and three-storey extension to side; Formation of door to rear at lower ground floor level; Landscaping works; and associated external alterations. Namely, internal alterations and minor adjustment to rooflight position.
-
26/05670/NMA Awaiting decision
64 St James's Street London SW1A 1NF
Amendments to planning permission dated 2nd September 2021 (21/02158/FULL) for: Demolition of the existing mansard roof and removal of plant and escape stair; erection of new double mansard roof extension and rear extension for additional commercial floorspace (Use Class E); and installation of new escape stair, rear balconies, roof terrace and associated works namely, amendments to allow for the installation of a condenser unit within the rear lightwell.
-
26/05674/NMA Awaiting decision
52 Eaton Place London SW1X 8AL
Amendments to planning permission dated 25 September 2025 (25/05108/FULL) for: Alterations to rear extension at first floor level including creation of rear roof terrace at second floor level; replacement of first and second floor level front windows with double glazed timber sash windows; replacement of front door; reinstatement of period windows and doors namely, to allow replacement of second floor rear full height sash window with set of french doors.