NSW premier Mike Baird told guests at the Press Club on Tuesday that negative gearing should be considered as part of the solution to housing affordability problems, but said doesn't have a firm view on the matter because he hasn't seen the federal government's modelling.

Baird said housing affordability is "one of the biggest, most complex challenges we have."

When asked if he supported planning minister Rob Stokes' suggestion that changes to negative gearing should be considered as part of the solution to housing affordability problems, Baird said, "Let's look at what's been presented, and ask is that something we should consider further? That's my position."

"If there's a positive impact on affordability," he said, "then of course it should be considered."

Baird said a record 75,000 dwellings were approved for construction in NSW during the year. He said the state is "doing all we can."

Baird said the federal government has identified a number of concerns about Labor's proposed changes to negative gearing, most notably a possible worsening of housing affordability for renters, but Baird said he has not seen the modeling.

Baird said Stokes is a uniquely "credentialed" minister, explaining he is completing masters degree at Oxford University to ensure he has access best minds in the world on planning and development.

See also:

Malcolm Turnbull says 'no' to negative gearing changes

Stamp duty reductions help not hinder affordability

Proposed NSW council mergers could create winners and losers