A decision on a multi-million pound plan to convert a listed building into a visitor centre will be made tomorrow night.

The ‘Walthamstow Wetlands’ project is aimed at attracting visitors to reservoirs between Tottenham and Blackhorse Lane in Walthamstow.

Waltham Forest council's planning committee will decide on whether to allow the Marine Engine House in Walthamstow to be converted into a visitors centre, with a café, a play area, a viewing platform and walkways.

Plans also include a 72-space car park and 40 cycle spaces.

The ‘Water and Life Centre’ project, which had an initial estimated cost of £10m, was scaled back in 2012.

The design process and land surveys cost £288,000, paid for with a grant from the Heritage Lottery Fund.

Thames Water has pledged £1.5m for the project.

Natural England has objected to the proposal on the grounds not enough information has been provided on the impact that the site will have.

It also complained about disturbance to wildlife.

The Marine Engine House was built in 1894 and extended in 1908.

It is composed of a turbine room, central boiler room and triple engine room but has not been used since the 1980s.

The plans include converting the turbine room into a learning space.

The the boiler room will become a shop and exhibition area, while the café will be created in the triple engine room.

The Coppermill Tower will provide a viewing platform for visitors and a rangers building will be upgraded for management.

Plans are behind schedule after rows between Thames Water and Waltham Forest Council over which contractor to use, the lease and cycle lanes.

If approved the transformation is expected to take two years.