Leah Hochbaum Rosner

A 'junior four' apartment is a large one-bedroom apartment with a dining area that can be walled off to create another bedroom—and this flexibility makes them much in demand.

This Prospect Heights studio 60 Plaza St. E., #3D, is listed for $389,000, which is significantly lower than the $455,000 median for the borough. It's also been on the market for 200 days.

Architect Joseph Eisner explains what he'd do to update this Hell's Kitchen railroad-style apartment.

A mix of both condos and rentals can give a developer a protection from a downturn. Or a developer may be obligated to have rentals: Condo developers who receive tax breaks have to set aside 20 percentage of rental apartments as affordable housing.

This East Village studio has a working fireplace, a Murphy bed, and an affordable price relative to the neighborhood.

New condos for sale in NYC where the sponsor is offering to pay the transfer tax and other closing costs.