Homes in Southsea at risk of flooding will get protection from Portsmouth City Council.
Up to 26 properties, in Ravenswood Gardens and Florence Road, will get special equipment fitted after they won a £104,000 grant from the government.
The houses were among the worst affected by floods that hit Southsea after a freak rainstorm in 2000.
The council - which added more than £2,000 of its own money towards the project - has sent out letters to residents in the roads, asking if they would like to take part in the flood protection scheme.
Residents who want to take part then have their homes surveyed. Protection such as sealant for brickwork, special front doors and covers for airbricks can then be put in place.
The work is due to start early nest year and will be designed to cope with the kind of exceptional rainfall that happens only once in 50 years.
Cllr Eleanor Scott, the council’s cabinet member for the environment, said: ‘We’re delighted to have won this money, so we can help protect some of the most at-risk homes in the area.
‘Of course, there are other homes which would benefit from this work. We’ll continue to apply for more funding so we can protect more properties.’