Upper St. Clair commissioners gave final approval for a cul-de-sac neighborhood off Morrow Road between Engelwood and Hidden Timber drives.

The plan will consist of six lots ranging from 1 to about 2.75 acres in size. 

Some vegetation will be cleared and must remain clear along Morrow Road due to driver sight distance requirements.

A series of underground detention tanks and a new inlet along Morrow Road will be installed for stormwater management. A homeowners association will maintain the systems. The developer, Dr. Andrew Zahalsky of Peters Township, will put 50 percent of the stormwater management construction costs in an escrow for maintenance.

Sidewalks will be constructed along the cul-de-sac.

Zahalsky first presented his plan in July.