Boston’s 10 most expensive one-bedroom condos start at $1.35M

Half of Boston’s 10 most expensive one-bedroom condos as of late July are in just two buildings: The newish 50 Liberty in the Seaport District and the older W Boston at 110 Stuart Street in the Theatre District.

In general, these 10 priciest one-bedrooms range from $1.35 million to $2.5 million, according to real estate research site NeighborhoodX. The units range in size from 878 square feet to 1,398 square feet.

“Given that the square footage for these properties is relatively modest, the asking prices are driven by relatively high prices per square foot,” NeighborhoodX research director Constantine Valhouli said over email. “These range from $1,246 a foot (1 Charles Street South, #3 in Back Bay) to $1,853 a foot (50 Liberty Drive, #6D in the Seaport).”