Two new permanent classrooms are to be created at Coddington Primary School before the end of the year.
It is one of six schools in Nottinghamshire to benefit from efforts by the county council to upgrade school accommodation for pupils and staff.
The £4.5m programme includes replacing mobile classrooms and more comfortably housing pupils where the schools are already under pressure to accommodate a rise in numbers.
Coddington Primary School will get two new permanent classrooms to replace portable cabins.
Mrs Tamsin Caputa, the school’s head, said: “We very much welcome the permanent buildings as it will be an environment much more conducive to education.
“Portable cabins are too hot in the summer, too cold in winter and have several costs associated with them so it is great that we finally have permanent classrooms.
“I would like to thank county councillor Maureen Dobson for all the support and hard work she has put in to help make it happen.”
The classrooms will be open from the beginning of September ready for the next academic year.
Coddington has 410 full-time pupils as well as foundation stage children who attend part-time.
Mrs Caputa said the school was full and had waiting lists.
The last Ofsted inspection, in February, 2015, rated the school as good.
Mr Philip Owen, chairman of the council’s children and young people’s committee, said: “This investment will help improve the learning environment for pupils and staff by providing light, airy and spacious permanent classrooms in place of the previous temporary ones or providing additional accommodation that allows for the current and projected increase in demand for primary school places in certain areas of the county.
“This £4.5m is money we received from the Government’s Basic Needs Fund as our 2017-18 allocation.
“The amount we get annually is based on information we supply about school capacities, admission numbers and projected future demand for places.
“We also receive additional funding through developer contributions where those extra places arise from new housing being built.
“We have earmarked more than £20m for school-place planning for the coming year and are currently undertaking feasibility studies with the aim of creating several hundred additional places by 2020-21.
“We have a statutory duty to ensure we have sufficient places across all schools, irrespective of whether they are academies, local authority maintained or otherwise governed.”