New Construction Homes in St. Johns County, Florida

St. Johns County is larger than St. Augustine alone. The county page helps separate city and community searches so buyers can compare the right inventory without collapsing the entire county into one Jacksonville market. Buyers focused on the city can open the dedicated St. Augustine new-construction guide.

Builder and community status below was checked against builder and developer websites on October 17, 2026. The tables show only what each builder’s own site states. “From” prices are each builder’s published base price, rounded, and a dash means the builder does not publish that detail. Prices, availability and phases change often, so confirm current details with the builder before you rely on them. Mariposa at EverRange, Regency at EverRange and Toll Brothers at RiversEdge are in Duval County, so they are covered on our Jacksonville new construction page.

Sebastian Landing in St. Augustine (Toll Brothers) is listed as coming soon, with townhomes anticipated from the mid-$900Ks and single-family homes anticipated from the $1.3 million range. Anticipated prices are the builder’s estimates and can change.

AR Homes by Arthur Rutenberg, through its local franchise Marcus Allen Homes, Inc., builds custom homes and build-on-your-lot projects in Duval and St. Johns counties and names Marsh Harbor and River Landing at Nocatee among its Ponte Vedra-area communities. Glenn Layton Homes lists River Landing at Twenty Mile, Twenty Mile at Nocatee, Palm Valley Gardens, Marsh Point and Yachtsman’s Point at Pelican Reef among its communities. Neither builder publishes current availability on those pages, so confirm homesite availability and pricing directly.

RiverTown, in the city of St. Johns, is developed by Mattamy Homes USA, which also builds in several of its neighborhoods, including Cove, Forest, Meadows, Springs and WaterSong, a 55+ neighborhood. Mattamy is not the only builder there: Toll Brothers builds Shores at RiverTown. Confirm which builder, neighborhood and phase applies to any home you consider.

Builder profiles: Toll Brothers, David Weekley Homes, Providence Homes, Meritage Homes, Pulte Homes, KB Home, Drees Homes, AR Homes by Arthur Rutenberg and Glenn Layton Homes. You can also compare all Northeast Florida builders.

• CDD assessments. A community development district (CDD) assessment helps pay for community infrastructure and is normally collected with property taxes. Some builders state that a community has no CDD fee, and others do not. The amount and how long it runs differ by community and phase, so ask for the current figures in writing for the exact home.
• HOA dues. Ask what the dues cover, such as amenities, landscaping or gate access, and how they are expected to change.
• Property taxes. New construction may be assessed on the land alone until the home is complete, so a first tax bill may not show what you will pay later. Ask the county Property Appraiser about the specific parcel and plan for the full assessed value.
• Insurance. Wind, flood and homeowners coverage vary by location and elevation. Get quotes before you commit, especially near the river, marsh or coast.
• Builder financing incentives. Compare any incentive tied to the builder’s lender with an independent lender quote on total cost, not only the rate.

School assignment depends on the address and can change. Confirm the assigned schools for any home with the St. Johns County School District before you make an offer. Builders describe their communities as served by the district or as near top-rated schools, but that is marketing language, not an assignment. Drive times to work, the beaches and Jacksonville vary by community and time of day, so test the drive at your own commute hour instead of relying on a published estimate.