Welcome to the Thornleigh Improvement Association (TIA) website.

Please help us keep Thornleigh safe and beautiful

Please take pride in your home and keep it neat and attractive. If you need help with any yard work, please let us or a neighbor know.

Please SLOW down and be alert for children playing.The speed limit in Thornleigh is 25 MPH but 20 MPH is more reasonable.

All persons under the age of 16 must wear a bicycle helmet by MD law.

Please park any large vehicles or trailers in driveways instead of the street.

Thornleigh is a close-knit community located in Towson, Maryland and is in Baltimore County. The Thornleigh neighborhood consists of 232 families. Thornleigh is in the Baltimore County Public Schools district. Our public schools are Riderwood Elementary School, Dumbarton Middle School, and Towson High School. Centrally located in Thornleigh is the Valley Swim and Tennis Club for neighbors to join. The neighborhood is easily accessible to Interstates 695 and 83, making Towson and York Road, as well as downtown, within easy reach. 

We are a covenant neighborhood that helps preserve the charming curb appeal maintained by neighbors for decades. The original housing styles consist of five models: a three-bedroom Colonial, a four-bedroom Rancher, two styles of three-bedroom split-level, and a three-bedroom semi-detached. 

The main goal of this website is to provide various resources for our neighbors. On this website you will find information about events happening in Thornleigh, the community Covenants, and lots of county and neighborhood services.

Neighbors are asked to make a voluntary $30 contribution annually. This revenue helps the the TIA enforce the covenants, hold and promote community events, and other administrative functions. 

We also ask for a $50 contribution to our Flock Security System to help keep our neighborhood safe!

Upcoming Events

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