A Lisson Grove park is to close for the next year while it benefits from an £870,000 makeover.
Broadley Street Gardens, in Broadley Street, will be transformed thanks to a new layout, landscaping and planting scheme.
The existing buildings, fences, paths and children's play facilities will all be removed.
The gardens, which were built in 1974 on the site of former housing, also require major works to correct subsidence problems and to fill in underground holes.
A public consultation will be held over the next few months, giving residents the chance to decide how the park will look, before the improvements start in mid-September.
Westminster Council hopes the park will win a Green Flag award when the revamp is completed in time for next year's summer holidays.
Cabinet member for customers and neighbourhoods Cllr Audrey Lewis said: "The discovery of subsidence was a setback, but it has also given us a unique opportunity to remodel the park based on what our residents want. We're asking them to get closely involved from the start and help shape its future.
"This is incredibly exciting as it means the park will eventually reflect the needs of all those who live around it, becoming the focal point for the community."
Westminster Council's head of parks, sports and leisure services, David Kerrigan, added: "It's vitally important that the council takes every initiative to maintain and improve the upkeep of its public spaces across the borough, especially in cases such as these, where we have the chance to create a new and improved quality Green Flag standard park for the whole community."
Mums using the Independent Mothers Playgroup, in Broadley Street Gardens, raised concerns earlier this year that their children would have nowhere to go when the centre closed to allow for the work.
The playgroup will now be temporarily relocated to Luton Street Play Centre, in Luton Street, Lisson Grove, subject to Ofsted registration. Westminster Council is looking for a more permanent replacement for the pre-school centre.
Details of the public consultation will be available from Westminster Council in the next few weeks. [25cf] For more information see www.westminster.gov.uk .