Thirty per cent of the new homes will be listed as ‘affordable’, while there will also be 7,500 sq ft of retail space and an area of public open space.
The Cassio Campus was sold to Cala Homes in December 2007 for £30m.
Cala Homes will start building 223 houses in Watford before the end of the year.
The house builder said it will start construction of 91 houses and 132 apartments on the site of West Herts College’s Cassio campus after taking possession of the site in November.
Thirty per cent of the new homes will be listed as ‘affordable’, while there will also be 7,500 sq ft of retail space and an area of public open space.
The Cassio Campus was sold to Cala Homes in December 2007 for £30m.