The centerpiece of the historic district is Druim Moir Castle (1885–86), whose main gate is at the corner of Willow Grove Avenue and Cherokee Street.

Designed by architects G. W. & W. D. Hewitt, and built at a cost of over $115,000 for Henry H. Houston, the thirty-room home was the largest in its neighborhood.

The interior is notable for its variety of woods: oak for the hall and stairway, butternut walnut for the parlor, mahogany for the reception room, quartered oak in the dining room and library, sycamore for the office, and cypress for the servant's section.

Oak, cherry, and sycamore were used on the second floor, and white pine for the third-floor servants' quarters.

He earned his wealth as the freight manager of the Pennsylvania Railroad, as well as from gold mining, shipping, and petroleum products.