Updating a Stone House in Baltimore County

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Kim Hammond and Carol Elerding Hammond worked with Mona Hajj, an interior designer, to renovate and expand Mr. Hammond’s family home in Baltimore County, Md. The project included an addition that made space for a new double-height family room.

Pieter Estersohn

Updating a Stone House in Baltimore County

Moving into a home that belonged to your parents — where you lived as a teenager — can be challenging. Especially if it’s 100 years old.