New Construction Communities in St. Johns, FL

Looking for new construction communities in St. Johns, FL? Momentum tracks 9 St. Johns communities with evidence of new-build activity, each with MLS-derived pricing and market pace below — plus the local questions worth asking before you buy, and a direct line to an agent who works these communities.

St. Johns new construction communities at a glance

Communities tracked

$482,000

Median sale price

65 days

Median days on market

901

Recent closings

The communities, by recent sales activity

Community	City	Median price	1-yr change	Days on mkt
RiverTown · agent	St. Johns	$648,000	-6.0%	78 d
Shearwater · agent	St. Johns	$482,000	-8.0%	39 d
WaterSong at RiverTown · agent	St. Johns	$478,000	-7.0%	36 d
Bridgewater · agent	St. Johns	$327,000	–	66 d
Stillwater · agent	St. Johns	$456,000	-11.0%	97 d
Mill Creek Forest · agent	St. Johns	$642,000	-5.0%	78 d
Bartram Ranch · agent	St. Johns	$974,000	+13.0%	80 d
Middlebourne · agent	St. Johns	$722,000	-1.0%	79 d
Stonecrest · agent	St. Johns	$412,000	-3.0%	31 d

Communities are listed by recent closing volume in Momentum’s MLS data. Figures are aggregates, change over time, and are deemed reliable but not guaranteed.

Buying new construction without leaving money on the table

Builders in these communities are competing on incentives — rate buydowns, closing-cost credits, and price adjustments. The right comparison is never sticker price: a $20,000 rate buydown and a $20,000 price cut produce different monthly payments. Run the actual trade with our builder incentive calculator before you sign.

The two costs new-construction buyers miss

First, property taxes: year one is often billed on the unimproved lot, then the assessment resets to your purchase price — model the real year-two bill with the property tax after purchase calculator. Second, CDD bonds: many new communities carry a community development district assessment on the tax bill for decades. Ask for the CDD annual amount and remaining term in writing, and always use your own inspector at the pre-drywall and final stages — builder warranties are not a substitute.

What it costs to own here

At St. Johns County’s typical combined millage of 13.47 mills, a purchase at $482,000 (the median across these St. Johns new construction communities) generates roughly $6,492 a year in property tax before exemptions — about $541 a month. Florida resets the assessed value to roughly your purchase price, so the seller’s current bill is not a preview of yours; a homesteaded owner then gets the $25,000–$50,000 exemption and the 3% Save Our Homes cap going forward. Citizens Property Insurance policies in St. Johns County average about $1,378 a year ($115 a month) — private-market quotes vary with roof age and wind mitigation, so price coverage before your inspection window closes. All-in, our county model puts the typical monthly cost of ownership in St. Johns County near $2,908 (principal and interest on the typical home, tax, and insurance).

Run your exact numbers: the property tax after purchase calculator uses St. Johns County’s verified millage, and the buyer closing costs calculator builds the full cash-to-close.

Demand and supply in St. Johns County right now

In the most recent IRS migration data (2022-2023), St. Johns County gained a net 10,642 people to relocation, with the largest inbound flows from NY, CA, NJ. Households moving IN reported average incomes of $130,600 versus $97,713 for those leaving — the income mix of demand, straight from tax filings. Population is up about 24.1% over the recent multi-year window. On the supply side, builders pulled 4,735 residential permits in St. Johns County in 2025 (3,554 single-family), down 15.1% year over year — against 8,390 at the 2021 peak. Permits are tomorrow’s inventory: a shrinking pipeline supports prices, a swelling one hands buyers leverage. Our valuation model reads the county as undervalued by about 5.7% versus its income-and-rent fundamentals.

Explore more of St. Johns

Run the numbers in St. Johns County

Common questions

How many new construction communities does St. Johns, FL have?

Momentum currently tracks 9 communities in St. Johns with evidence of new-build activity in MLS or verified amenity records. Others exist; these are the ones with active market data.

What do homes in St. Johns new construction communities cost?

The median sale price across tracked new construction communities in St. Johns is about $482,000, varying widely by community - see the table for community-level medians.

How does Momentum classify a community as one of the new construction communities?

A community appears here when we find a meaningful share of homes recorded in MLS with build years of 2024 or newer. We do not guess from names alone. Verify any specific amenity or restriction with the association before you rely on it.

How much is home insurance in St. Johns County?

Citizens Property Insurance policies in St. Johns County average about $1,378 a year, per Citizens filings. Private quotes vary widely with roof age, construction and wind mitigation - a wind-mitigation inspection often unlocks meaningful credits.

What are property taxes like in St. Johns County?

Typical combined millage in St. Johns County is about 13.47 mills - roughly 1.35% of assessed value a year before exemptions. Florida resets assessed value to about your purchase price when you buy, then homestead exemptions and the 3% Save Our Homes cap apply.

Community classifications are compiled from MLS-reported amenities, verified amenity records and MLS build-year data, as of 2026-06-16; they are informational, change over time, and are deemed reliable but not guaranteed — verify details with each association. Not an offer of housing to any protected class to the exclusion of others. Equal Housing Opportunity.