David Warnica was the first owner of this home which was built circa 1884 and survived the Great Fire of 1887, which did not reach this far north.  The Bed and Breakfast side of the present house was the original home which was built as plank board frame.  Additions occurred circa 1942 in restrained Gothic Revival style with an influence from the ubiquitous Ontario vernacular residence construction.   The exceptional wooden ceilings in the living room are the same design, and completed by the same woodworker, as those in the Bethune House and Lafranier House.  Additional notable features include the barge board edging along the eaves, the porch, the bay window at the front left of the house, the Reading Room at the back in the summer house and the landscaped yard and pool.

Warnica House is a wood frame, 1 & 1/2 storey, L-shaped plan, with a cross gable roof, overhanging eaves, a centre gable in the crook of the L-shaped plan, decorative bargeboard and finial in the west facing gable, decorative bargeboard in the centre gable, dutch lap vinyl siding, flat-headed windows in decorative semi-elliptical window surrounds, paired flat-headed windows in a decorative semi-elliptical window surround on the second storey of the porjecting bay on the west elevation, a single storey bay window with a hip roof and flat-headed windows in decorative semi-elliptical window surrounds on the projeting bay of the west elevation, a single door entrance on the south elevation of the projecting bay, a central single door entrance on the west elevation of the stem of the L-shaped plan flanked by small bay windows, and a one storey shed roofed porch with decorative wood posts and detailing in the crook of the L-shaped plan. There is a one storey addition to the east elevation with a hip roof, vertical board siding, a single door entrance on the south elevation, and a three segment rectangular window on the east elevation. Along the sidewalk is a small stone fence with a metal arch over the walkway leading up to the house.