Over $22 million in WA government funds will be invested to create 58 new affordable housing apartments as part of a redevelopment of the historic Fremantle Dalgety Wool Store.

The development is part of a project to build 241 apartments on the site. The State Government's goal is to deliver 20,000 homes by 2020 that are affordable.

The affordable housing component will be funded under Stage 2 of the Nation Building Economic Stimulus Package.

The Department of Housing's 58 apartments will be built on 1,846 sqm of cleared land adjunct to the main wool store building, located behind a heritage facade on Beach Street.

The apartments will be spread over two buildings, each five-storeys, with communal space separating the two. The first stage of the development will be built by Match Construction.

The remaining 183 apartments will be developed by the Match Group and will comprise a mix of one- and two-bedroom warehouse apartments contained within the wool store building that will be made available for sale to the public in 2011.

The first stage of construction is expected to be completed by December 2011.

The Dalgety Wool Store was built in 1922 and later extended by Dalgety and Sons for the store of wool for auction.