A Yorktown developer wants to build as many as 836 homes on undeveloped land south of Newman Road in upper York County, between Fenton Mill and Barlow roads.

The mixed-use development would be worth more than $300 million, generating some $1.3 million in taxes for York County, according to the developer’s application to rezone the land.

Fenton Mills Associates LLC, whose owners include Lamont Myers of Mid-Atlantic Communities, is planning a mixed-use development that would include 506 single-family houses, 230 townhouses and 100 age-restricted “active adult” units, according to its rezoning application. Those adult units will be either four-apartment buildings or patio homes.

Prices for homes will range from $250,000 to $600,000 and would average $370,000.

In addition, the developer plans 40,000 square feet of commercial space.

Myers said 47% of the site would be set aside as green space. Plans call for community clubhouses, a swimming pool, playgrounds and community gardens.

It also would set aside 16 acres for a new school, noting that it estimates the development would add 358 students to the county school system.

“It’s a beautiful piece of property, at the gateway to the county,” Myers said. “We wanted to be respectful of that and to have something that would blend in with the neighborhood.”

Fenton Mill bought the parcels in 374-acre tract last year for nearly $4.9 million, county land and tax records show. Williamsburg Pottery sold the developer about 350 acres, and Judy and Roy Turman sold the rest. In addition, the development will include nearly 5 acres that will continue to be owned by Clarence F. Curry and his son.

Myers, who signed a deed of trust to secure a $3.7 million line of credit for Fenton Mill, and Mid-Atlantic have been involved with several Peninsula developments in recent years, including the Legacy of Poquoson, Turtle Creek in Newport News and Whittakers Mill near the Marquis Shopping Center.