Part of Belmont Park closes and the platform grows by 45 metres from this autumn, in seven months of work meant to double Belmont's trains by the end of 2027.
Network Rail will start work at Belmont station this autumn, extending the platform by 45 metres and installing new signalling, in a programme expected to last around seven months. Part of Belmont Park will be taken out of use for a temporary construction compound while it happens. Sutton Council announced the start date on 7 August. (London Borough of Sutton, 7 August 2026)
The council’s stated goal is bigger than the platform: it says the £14m of government funding secured in 2023 was to “double the frequency of trains and improve journey times between Belmont and central London by the end of 2027”.
What is actually being built
Lucy McAuliffe, Network Rail’s Sussex Route Director, set out the engineering in the council’s announcement: “We have designed a 45-metre platform extension to support longer, ten-car trains being able to use the platform. This improvement, along with the installation of new signalling equipment will help us run more frequent services to Belmont in the future.”
She gave the timetable as well: work on the platform and the station approach begins this autumn, construction is expected to finish in summer 2027, and “the upgraded infrastructure will then enter service by the end of 2027”.
Belmont is the nearest station to the London Cancer Hub, the research and treatment campus being developed on the old Sutton Hospital site, and that is a large part of why the money was found. Rail Minister Lord Peter Hendy said the investment “will be an important boost to support the London Cancer Hub and economic growth across Sutton and south London”.
Govia Thameslink Railway, which runs the trains, is a partner in the scheme. Its Infrastructure Director Adrian Gogay described it as “one of the ways passengers are being prioritised under public ownership, as part of the journey towards Great British Railways”.
The part of Belmont Park that goes
The council is direct about the cost to the neighbourhood. Its announcement says that “residents and businesses in the local area will see that part of Belmont Park is taken out of use and the construction of a temporary compound in the park itself and alongside the existing tracks”.
Councillor Christopher Woolmer, who chairs the council’s Environment and Sustainable Transport Committee, acknowledged it: “I know there will be some short-term inconvenience with the closure of a part of Belmont Park but I hope the major improvements that will be delivered in the local area will make it all worthwhile.”
Neither the council nor Network Rail has yet said which part of the park goes, how much of it, or what the working hours will be. The announcement also does not say whether the station itself will close at any point during the seven months, or whether replacement buses will run. Those are the details that decide how much of a nuisance this is for anyone living on the streets around the park, and they have not been published yet.
What Belmont’s service looks like today
The scale of the promise is easier to judge against what is there now. Belmont currently gets two trains an hour to London Victoria, one every half hour through the day, taking about 55 minutes. On a Monday morning that is the 06:45, 07:15, 07:45 and 08:15; off peak it is the same half-hourly pattern, 13:15, 13:45, 14:15 and so on. (National Rail timetable via traintimes.org.uk)
Doubling that frequency, which is what the council says the £14m was for, would mean four trains an hour. The station has a single platform on a single track, which is the constraint the signalling work is there to address.
Fares from Belmont to Victoria are currently £4.40 with contactless or Oyster off peak and £6.60 at peak times, or £15.30 for an Anytime Day Return. Our Sutton train times to London page covers the routes from Sutton, Carshalton and Wallington too.
What it means for you
If you live near Belmont Park, expect a construction compound in part of the park from this autumn and for roughly seven months after that, plus works alongside the track. Watch for a follow-up notice giving the exact area and the working hours, because the announcement does not include them.
If you commute from Belmont, nothing changes yet. No closure or timetable change has been announced for the works period, but a seven-month programme that includes signalling installation is the kind that usually brings some weekend closures, so check before travelling once the start date is confirmed. The service benefit is not due until the end of 2027.
If you drive to the station instead, the station approach is being improved as part of the same programme, so parking and access around it are likely to be disrupted at some stage. Our parking in Sutton page has the borough’s current rules and charges.
And if you want to see the detail as it is submitted, works of this type generate their own paperwork with the council. You can follow what is lodged for the Belmont area through Sutton planning applications.
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