“It leads to substandard conditions and a lack of security of tenure for tenants. The result is that renting, and tenants, are considered second class.” Since returning to New Zealand recently, Gardner had become an advocate for build-to-rent developments which he believed was part of the solution to the country’s housing woes. Build-to-rent involves the development of multi-unit residential buildings for long-term rentals, rather than sales to individual owners. Supplied Developer Kent Gardner says the build-to-rent model can help fix the broken housing rental system. It has become both a major part of the rental market and a sought after investment asset class in Europe and the United States and is now taking off in Australia.