The amount to pay Bath and North East Somerset Council is set to go up by more than £55 in 2020/21.

Authority bosses say they are investing in key priority areas like tackling the climate emergency and delivering more affordable housing.

The biggest single sum in the budget for 2020/21 is the £18.3 million cost of implementing Bath's clean air zone, and for mitigating the impact it will have on residents and businesses. The council expects central government to fund it in full but as yet that is unconfirmed.

Other big ticket items include:

£2 million to redevelop Bath Studio School to provide local specialist educational provision for children with autism and complex social, emotional mental health needs;

a £300,000 refurb of Bath Central Library

£250,000 to create a centre to house the council's extensive, internationally significant heritage collections

£640,000 to install CCTV and movable bollards to stop vehicles entering York Street, Lower Borough Walls and Hot Bath Street

£150,000 to improve walking and cycling infrastructure

£3.9 million to refurbish Cleveland Bridge. Again the council hopes for a Government grant to help fund it.

The projects will be funded by a 3.98 per cent jump in council tax – half of that sum will go on on council services, with the rest ring-fenced for adult social care.

The average band D property will pay £55.76 more than last year, equivalent to £1.07 extra per week.

As well as increasing council tax the authority also hopes to bring in extra income.

Budget papers say it will rent out spare office space to net another £270,000, and it wants to squeeze another £900,000 out of its celebrated museums. Bath's famous spa waters could net it another £20,000.

Spending in the budget also includes:

£323,000 for the climate emergency team so the council can ensure the whole district is carbon neutral by 2030

£100,000 more for street cleaning, and £140,000 on litter enforcement – council leaders have previously hinted that the private sector "litter army" contract will not be renewed

£42,000 for "stronger and more widespread" action on empty homes

£25,000 to review planning guidance on homes in multiple occupation to ensure communities are sustainable

An additional £25,000 for parks services for in-year pressures like grass cutting

£60,000 to support the council's tree and woodland strategy and tree planting

£152,000 to support domestic violence and abuse services

£119,000 to improve accountability, openness and engagement with local residents

And, after cabinet leaders voted to ban boaters from mooring at Mead Lane in Saltford, the council is spending £35,000 to survey the damage that has been caused to the riverbank.

The council is planning to make savings totalling £4.8 million by reviewing health and care contracts and changing how it works in several areas.

Councillor Richard Samuel, cabinet member for resources, said: "We look forward to receiving comments from the panel on the new administration's proposed budget.

"The draft spending plans include major new investment to improve people's lives through tackling the climate emergency, increasing the availability of affordable housing, developing low traffic neighbourhoods and supporting vulnerable people.

"I'm particularly pleased that the draft budget includes significant investment of almost £400,000 to tackle the climate and nature emergency, including a wide-ranging citizens engagement programme through which we will help the local community reach a consensus on the radical action that needs to be taken."

But opposition leaders say the proposals are uninspiring and vague.

Conservative group leader Paul Myers, who was formerly the Mayor of Midsomer Norton said: "Residents in Bath and North East Somerset who put their trust in the Lib Dems have been let down by the uninspiring lack of ambition set out in these proposals.

"We understand the pressures facing local councils but given the huge mandate they received last May, we would've expected them to actually get the ball rolling on their manifesto promises.

"Yet again, the public are being left in the dark with reference to vague 'budget savings' across council departments, with no indication of what services will actually be cut.

"The only clarity in this budget is that Council Tax looks set to rise annually for the next four years – an easy option that hits the most vulnerable hardest.

"If this is what we can expect from the Lib Dems, the public are right to be concerned for the future of Bath and North East Somerset."

Sarah Bevan, an independent, highlighted a disparity between Bath and many other parts of North East Somerset, where residents also higher face bills from their town or parish council.

In Peasedown St John the precept was increased by 41 per cent last year.

She added: "Some refer to this inequality as double taxation, and I can understand why."

The papers will go before scrutiny panel members on Monday, February 3.

The budget will be finalised by cabinet and full council later in the month.