The Dolls House is a Sindacco Family-run casino and bordello on the eastern edge of the Red Light District of Portland, Liberty City. Little else is known of the building, and it doesn't feature any interiors.
In Grand Theft Auto: Liberty City Stories, protagonist Toni Cipriani destroys The Dolls House building in Joseph Daniel O'Toole's mission Blow Up 'Dolls'. The building remains in shambles for the rest of the game. A molotov cocktail will also spawn one the skeletal remains of the building after the mission.
The same location is occupied by a similarly sized building in Grand Theft Auto III, but is positioned slightly south from the site of The Dolls House.