Working along the crowdlending model, create an opportunity for investors to lend directly to large housebuilders to ease cashflow etc in return for payback on their investment, with a level of interest to attract investment.

A framework would be in place with conditions dictating the term and payback options so investors could make their own judgement on exposure to risk.

Housebuilders, with more available funds could commit to a larger amount of work, thereby creating more homes at a faster rate and potentially built at a more reduced cost.

Result: more homes for buyers. More mortgage applications made to incentivise banks to lend, coupled with potentially less money being 'saved' in banks (as invested here) encouraging them to develop mortgage products etc. May encourage more 'Yes in my backyard' as public can stand to directly benefit.