New Construction Homes in St Johns County, FL

By Jon Brooks, Co-Founder, Momentum Realty · Updated October 15, 2026

28 new-construction homes are listed for sale in St Johns County right now, across 3 communities and 2 builders. Most list between $240K to $347K; the median new build is $278,440 ($215/sq ft, typically 1,308 sq ft, 3 bedrooms). Everything on this page is from Momentum’s MLS record as of 2026-10-15 and refreshes as homes list and sell.

New homes listed

Communities

$278,440

Median new build

$240K to $347K

Typical range

$1,912

Est. monthly cost to own

Builders active

New-home communities in St Johns County

Every St Johns County community with new construction actively listed, the builder where the listing identifies one, how many homes are available, and the lowest current list price. Community names link to that community’s guide with its sales history and live inventory.

Community	Builder	New homes	From
Palencia North Phase Iii A-5	D.R. Horton, Holiday Builders	26	$236,290
Istoria	—	1	$849,900
Palencia	—	1	$2.50M

Builders building in St Johns County right now

Counted by homes currently listed in Momentum’s MLS record, so this reflects who has inventory today rather than who has ever built here.

D.R. Horton — 23 new homes in Palencia North Phase Iii A-5
Holiday Builders — 1 new home in Palencia North Phase Iii A-5

New construction in St Johns County by city

St Augustine — 21 new homes
Hastings — 4 new homes
St. Augustine — 2 new homes
St Johns — 1 new home

New construction in St Johns County by price

Under $300K: 21 homes
$300K – $400K: 2 homes
$400K – $500K: 1 home
$750K – $1M: 2 homes
$1M and up: 2 homes

What a new build in St Johns County costs to own

Take the median $278,440 new home with 20% down at today’s 7.40% 30-year rate: principal and interest run about $1,542/month. St Johns County’s typical millage of 13.47 puts property tax near $3,077/year after the $50,000 homestead exemption — and on a new build there is no seller’s capped bill to be misled by; the first-year bill is on the land alone and the full bill arrives the year after. Where an HOA is listed the median is $113/month. All in, plan on roughly $1,912/month, plus any CDD assessment — most master-planned communities finance their infrastructure with a district bond that appears on the tax bill for years, and it is the number builders’ sales offices mention last.

How to buy new construction the smart way

The agent in the model home works for the builder. Bringing your own Momentum agent costs you nothing — the builder pays the commission either way — and gets you representation on the contract (builder contracts are one-sided by design), the upgrade pricing, the lender comparison (the builder’s preferred lender incentive is real but not always the best deal), an independent inspection at pre-drywall and at completion, and the walkthrough. Register your agent on your first visit; most builders will not honor representation after that.

Builders rarely cut list price on a to-be-built home, but completed inventory homes at the end of a quarter are a different negotiation: closing-cost credits, rate buydowns, and included upgrades are common, and the cards above show which homes have been sitting.

Explore St Johns County

Common questions

How many new construction homes are for sale in St Johns County?

As of 2026-10-15, Momentum's MLS data shows 28 new-construction homes actively listed across 3 St Johns County communities, most between $240K to $347K.

Who is building new homes in St Johns County?

The most active builders right now are D.R. Horton (23), Holiday Builders (1), counted by homes currently listed.

What does a new construction home cost in St Johns County?

The median new-build listing is $278,440, about $215 per square foot for a typical 1,308-sq-ft home. Ten percent of new homes list under $240K and ten percent above $347K.

What is the monthly cost of a $278,440 new build in St Johns County?

Roughly $1,912 a month with 20% down at 7.40%: principal and interest of $1,542, St Johns County property tax of about $256/month after the homestead exemption, and a typical HOA of $113. Many new communities also carry a CDD assessment on the tax bill; ask for it on every home.

Should I use my own agent to buy new construction?

Yes. The sales agent in the model home represents the builder. A Momentum buyer's agent costs you nothing — the builder pays the commission — and handles the contract, upgrade pricing, lender comparison, inspections, and the final walkthrough. Register your agent on your first visit.

Do builders negotiate on price?

Rarely on the list price, but they routinely offer closing-cost credits, rate buydowns, and included upgrades, especially on completed inventory homes at quarter-end. That is where a buyer's agent earns their keep.

Using these figures? Link to this page as the source so readers can see the live numbers; they refresh from Momentum Realty’s MLS and county data (as of 2026-10-15). Suggested attribution:

<a href="https://movewithmomentum.com/new-construction-homes-st-johns-county">New Homes in St Johns County, FL: 28 New Construction Homes from $240K (October 2026) — Momentum Realty</a>

Press and data requests: jon@movewithmomentum.com · Florida Housing Intelligence

Counts, prices and photos are from Momentum Realty’s MLS record of active listings in St Johns County communities as of 2026-10-15; a home is counted as new construction when the listing shows it as built this year or later or when a production builder is the listing office. Builder names come from listing data. Estimates are not guarantees. Equal Housing Opportunity.