Northumberland Neighborhood Brentwood TN is located near the corner of Split Log Rd. and Wilson Pike. Although the neighborhood was built in the mid-2000’s, Northumberland neighborhood homes have the look and feel of an old English manor. Homes sit on a minimum half-acre site and range in square footage from 3,500 to 7,000 sf. Northumberland neighborhood Brentwood homes range in price from $500,000 to $1 million. The neighborhood is also zoned for Williamson County Schools.