The move reflects the maturation of the once-scruffy industrial area into one of Boston’s hottest neighborhoods.

The Boston Redevelopment Authority on Thursday approved changing the final residential building at the Ink Block development into condos, instead of apartments as they were first approved in 2012.

In another sign that the industrial part of the South End is growing up, a building on Harrison Avenue that was originally planned for apartments is going condo.

“Putting in condos was really a way to accelerate development,” said Ted Tye, managing partner of National Development, which is building the 6.2-acre Ink Block. “It both meets demand and helps the stability of the neighborhood.”


The company expects to market the units at prices from $500,000 to $2 million.

New, high-end development in Boston has been shifting toward for-sale units in recent months, as rent growth levels off amid a surge of luxury apartments opening. New condos, which have been rarer, have sold quickly amid demand from suburban empty nesters and city dwellers looking for new homes.

At Ink Block, Tye said, the change has been planned for some time. National began marketing the 76 condos — in a building known as Siena — at the start of the year, after another condo phase of the project sold out faster than expected.

Meanwhile, more development is flocking to the neighborhood. The BRA on Thursday also approved tweaks to a building across the street from Ink Block that will hold 585 apartments. A block down Harrison, big developer Related Beal is planning a housing project on the site of the now-closed Quinzani’s Bakery. Related hasn’t yet said if it will build rental or for-sale.

Tim Logan can be reached at Tim.Logan@globe.com. Follow him on Twitter @bytimlogan.