Mrs Leha'uli had only just moved out of her parents' house when her baby daughter Annette was born in September.
"We had to move out before I gave birth," she said.
Another woman, who declined to be named, said she and her 17-year-old son had been sleeping in the living room of her brother's house because the bedrooms were already full with her brother and his wife, her brother's son and his wife and three children and the son of another sister who lives in Tonga.
Another family, fabricator Siosaia Mafile'o and his wife Seinisia and three children, were crammed into a two-bedroom house and now have a three-bedroom home for themselves.
Bruce Stone of Airedale Property, the Methodist social housing agency, said the Government grant paid half of the project's $8.6 million cost. The rest came from the land value and a bank loan. Rents are set at 80 per cent of market value, or $310 for a three-bedroom house.
Housing Minister Nick Smith said the Government would consider a new funding application for the next stage of 14 pensioner units.
"The social housing fund had an agreed allocation of $104 million that carries through to the end of the 2014-15 financial year," he said. "One of the issues for the Budget is going to be what form that might take beyond 2015."