Planning application
20 Lower Mall, London, W6 9DJ
Works: Extension
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of an additional floor at roof level; erection of rear extensions at ground, first and second floor levels; replacement of existing metal railings to existing roof terrace with new glass balustrades at second floor level.
As published by the council, reference 2025/03380/FUL
Application record
- Reference
- 2025/03380/FUL
- Type
- Full Planning Application
- Status
- Granted As published: Decided: APPLICATION APPROVED
- Decision
- Granted As published: APPLICATION APPROVED
- Received
- 5 Dec 2025
- Validated
- 10 Dec 2025
- Decided
- 20 Mar 2026
- Ward
- Hammersmith Broadway
- Postcode
- W6 9DJ
Site history
Applications at this address on the Hammersmith and Fulham register
This site has had 3 applications since 2025: 2 approved, 0 refused.
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P/2026/02290/HH Awaiting decision
20 Lower Mall, London, W6 9DJ
Erection of an additional floor at roof level; erection of rear extensions at ground, first and second floor levels; replacement of existing metal railings to existing roof terrace with new glass balustrades at second floor level; installation of an air conditioning unit attached to the northern elevation of the proposed first floor extension.
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P/2026/00810/DET Granted
20 Lower Mall, London, W6 9DJ
Submission of details of external facing materials (including manufacturer's specifications and photographs) pursuant to condition 4 of planning permission ref: 2025/03380/FUL granted 20th March 2026.
Timeline
Dates from the published record
-
5 Dec 2025
Received by Hammersmith and Fulham
-
10 Dec 2025
Validated
Checked as complete and ready for consideration.
-
20 Mar 2026
Decision issued: APPLICATION APPROVED
-
24 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
1 later application on the register refers to this one:
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P/2026/00810/DET Granted
20 Lower Mall, London, W6 9DJ
Submission of details of external facing materials (including manufacturer's specifications and photographs) pursuant to condition 4 of planning permission ref: 2025/03380/FUL granted 20th March 2026.
Documents
Plans, drawings, consultee responses and the officer's report
27 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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Hammersmith and Fulham granted permission on 20 March 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 full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
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20 Lower Mall, London, W6 9DJ
98% historically approved · decision due ~2 Nov
Erection of an additional floor at roof level; erection of rear extensions at ground, first and second floor levels; replacement of existing metal railings to existing roof terrace with new glass balustrades at second floor level; installation of an air conditioning unit attached to the northern elevation of the proposed first floor extension.
Awaiting decision Householder Extension 31 docsDomestic -
20 Lower Mall, London, W6 9DJ
Submission of details of external facing materials (including manufacturer's specifications and photographs) pursuant to condition 4 of planning permission ref: 2025/03380/FUL granted 20th March 2026.
Granted Conditions 6 docs -
19 Lower Mall London W6 9DJ
Erection of a part one, part two storey rear/side extension at first and second floor level, enlargement of the existing basement; the installation of solar panels to the flat roof of the side extension at second floor level; and replacement of the existing 3no. sets of French doors to the front elevation at first floor level.
Granted Full applications Extension Windows or glazing 25 docs -
Westcott Lodge 22 Lower Mall London W6 9DJ
97% historically approved · decision due ~11 Sep
T1: Sycamore - Reduce by 2-3m house side over front garden.T2: Ash - Clear lamp column. Remove dead wood. Lift to 5mT3: Sycamore - Lift to 5m.T4: Sycamore - Remove all dead wood and lift to 5m.T5: Sycamore - Fell tree; grind stump. Arisings placed back into stump void as ground settles over time.T6: Cherry's x3 - Remove growth back to previous points.G1: Lift all trees on grass area to 5m
Awaiting decision Trees 3 docs -
Westcott Lodge 22 Lower Mall London W6 9DJ
97% historically approved · decision due ~26 Mar
T2,T3 & T4: Prunus - Reduce heavily 40% and reshape. T5: Cotoneaster - Fell tree to a point as close to ground level as is rasonably practicable to leave a stump. Grind out resulting stump, excess arisings wil be placed back into the void left by the stump as the ground will settle over time.
Awaiting decision Trees 3 docs -
Pavement To The Rear Of 52 Mall Road ,Facing Furnivall Gardens on Rutland Grove London,W6
98% historically approved · decision due ~11 Sep
Erection of a free standing InPost Parcel Locker with a canopy on the pavement to the rear of 52 Mall Road, facing Furnivall Gardens on Rutland Grove; erection of 2no bollards in front of the new proposed InPost Parcel Locker.
Awaiting decision Full applications 14 docs
Other full applications
In Hammersmith and Fulham
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P/2026/00774/FUL Granted
6 Flat B First And Second Floors,Hetley Road,London,Hammersmith And Fulham,W12 8BB
Raising of parapet wall and erection of steel posts and glass balustrades around the flat roof of the two storey rear back addition at second floor level, in connection with its use as a roof terrace; installation of French doors to replace the existing sash window at second floor level to the rear elevation.
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P/2026/02559/FUL Awaiting decision
34 Oaklands Grove, London, W12 0JA
Erection of a rear roof extension, involving an increase in the ridge height by 300mm, and including the installation of French doors and a Juliet balcony; erection of a single storey rear extension, to the side and rear of the existing back addition; installation of 2no. roof lights in the front roof slope; installation of French doors and a Juliet balcony to replace existing window to the rear elevation of the existing back addition at second floor level; formation of a roof terrace to the rear elevation at first floor level, enclosing part of the flat roof of the proposed single storey rear extension with a 1.7 metre high obscured glazed screen;
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P/2026/01606/FUL Granted
Flat 1 Maisonette Basement And Ground Floor, 41 Addison Gardens, London, W14 0DP
Erection of an external staircase to the rear elevation from upper ground to lower ground floor level; and installation of a French door following the removal of an existing window, to the rear elevation at upper ground floor level.
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2026/00333/FUL Granted
Flat B First And Second Floors, 6 Hetley Road, London, W12 8BB
Replacement of 1no existing window with new double glazed timber framed windows at second floor level to the front and rear elevations; replacement of 1no existing single window and 1no bay window comprising of 3no window glazing with new double glazed timber framed windows to the front elevation, and replacement of 1no existing window with a new double glazed timber framed window to the rear elevation at first floor level.
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P/2026/01534/FUL Granted
74 Flat Ground Floor,Townmead Road,London,Hammersmith And Fulham,SW6 2RU
Erection of a single storey rear extension, to the side and rear of the existing back addition following the demolition of existing conservatory at the rear of the property. Replace window on main rear wall at ground floor level with glazed door and Juliet balcony.