Designer Alexa Hampton sought to install a downtown 1970s vibe in the envelope of the clients’ more traditional apartment.

With their clean lines, bold cantilevers, walls of glass and jaw-dropping interior design, these dreamy modern homes offer both style and substance.

The historic St. Simons Lighthouse, a maritime sentinel of the Georgia coastline since 1872, looms over St. Simons Sound, long guiding ships to shore whenever the surrounding water’s mercurial ...