The Nagle Warren mansion has many elegant features, suitable for its location on Cattle Baron's Row.  Those of special note include: the Moorish style tile on the vestibule floor; the original Moroccan chandelier in the entry hall; the carved leather ceilings; original stained glass and crystal windows; cherry paneling in the foyer; parquet floors throughout the first floor; two cast brass fireplaces with mirrors to the ceilings; massive pocket doors; a marble library fireplace; and impressive oak woodwork in the dining room, library and sitting room.

Details worthy of particular note are: the bronze medallions set in the front doors and newel posts, elaborate detail on the doorknobs and hinges, oak galleries over the dining room windows and door, and two large paintings in the parlour that Mr. Nagle commissioned for the house when it was new.