Builders started on site behind Galeries du Manoir in St Martin's last June.
It is hoped the 16 two-bedroom dwellings will be finished in early 2022.
The project has faced a number of hurdles.
Formerly known as Les Blanches, it took several years to get planning permission to build on the site, which used to be green fields on the edge of St Martin’s village.
Now named Le Menage, the development includes housing specifically targeted at older homeowners looking to downsize.
Led by local development company, Vieux Moulin, working in conjunction with Ravenscroft Construction, the project will see the delivery of 12 houses and four apartments for over-55s.
Each dwelling has been designed to accommodate lifetime living.
Catharine Walter, from Vieux Moulin, said it was delighted construction work was well under way.
‘With regards to the design and development work itself, in undertaking this project we have also been sensitive to any impact on the environment both immediately surrounding the area as well as in the wider parish of St Martin’s,’ she said.
‘We’ve taken every step to ensure the properties adhere to the strictest building standards, and that the carbon footprint of these new properties is kept to a minimum.’