The City Planning Commission rep appointed by Public Advocate Bill de Blasio — a critic of big developers — voted with the administration 93 percent of the time, records show.

One of those votes was to approve Extell’s West Side tower that includes a “poor door” separating subsidized tenants from those paying market rents.

A de Blasio spokesman said the rep actually fought “the poor door,” but Extell found a way around her objection.

De Blasio’s rep has voted in favor of 554 out of 595 projects since 2010.

“No one has been a stronger or more independent voice for making sure that the middle class can still call New York City home,” said de Blasio’s campaign spokesman, Dan Levitan.