A new water treatment works is set to be built on the boundary with the Peak District in Sheffield.
The plant will be built next to Yorkshire Water’s existing Rivelin site off the A57 Manchester Road, which provides water for around 250,000 people across the city.
It will replace a clarification system which was installed in the mid-1990s but is about to become obsolete.
However, the land lies within Sheffield’s Green Belt, and the scheme means the works will expand into fields south of the A57.
A design statement submitted to the council by engineering consultancy Mott Macdonald, which is overseeing the project, said: “Yorkshire Water owns several fields to the north of the A57 but it was determined that construction here would have more of an impact on the landscape.”
The water clarifier - a ‘partially buried’ structure - will have a green roof that resembles a wildflower meadow, according to plans. Ventilation points will mimic beehives.
If the proposals are approved, construction would start later this year.
Final landscaping would take place in spring 2018.
It is likely building the scheme would cause disruption on the A57. Work on site would happen from 7am to 7pm, Monday to Friday, and ‘potentially’ Saturday mornings from 8am to midday.
There has been a water works on the site for more than 100 years.
Planning officers will prepare a report before a final decision is made.