The main facade is five bays wide, with a center entrance framed by simple moulding.

The interior follows a center chimney plan typical of mid-18th century houses, including a winding staircase in the entry vestibule.

Its essentially Georgian character is fairly conservative, considering many more urbanized settings were already seeing Federal style housing at the time of its construction.

The Robbinses were early settlers of the Newington area, which was until 1871 part of Wethersfield, and Unni III and his brother David Lowry Robbins were among the town's wealthiest landowners.

Unni III's son Henry eventually reunited many Robbins family holdings, operating them as a gentleman farmer.