Justin Lester is promising to establish New Zealand's first wet house for alcoholics and drug addicts if he wins the Wellington mayoralty next month.
A wet house is a residential facility where alcoholics can continue to drink.
Mr Lester said research showed alcoholics could reduce their consumption of alcohol if they had the support of a wet house.
Plans to set up a wet house in Wellington in 2009 were shelved when funding could not be found.
Capital and Coast District Health Board and Wellington City Council each gave a trust for the project $250,000, but the trust pulled out after the DHB demanded a five-year business model instead of the previously agreed 12-month plan.
Mr Lester said his policy would reduce homelessness and begging on the streets, and he would also commit to increasing affordable housing for Wellington's homeless.