WaterSong at RiverTown: What It Actually Costs to Live Here

St. Johns, FL  ·  Mattamy Homes  ·  ~800 Homes  ·  55+ Age-Restricted

The number most buyers see first at WaterSong is the HOA fee: approximately $5 per month. That figure is accurate but it tells almost nothing about your real annual housing cost here. The actual cost structure runs through a Community Development District assessment on your property tax bill — a separate charge that does not appear in any builder's marketing and is only visible when you pull the parcel record at the county property appraiser.

This page gives you the complete cost picture: HOA, CDD, property tax, and a 10-year projection at two home price points.

Monthly and Annual Cost Breakdown

CDD Amount: Verify Before You BudgetUnlike Parkland Preserve (where the CDD range is published at $2,390–$3,924/year), WaterSong's CDD is not publicly listed in builder materials. It varies by phase and lot. Before budgeting, search your specific homesite at sjcpa.us — enter the address and look for "CDD" or "Community Development District" in the tax detail. Alternatively, ask the seller for their prior-year tax bill, which will show the full line-item breakdown.
Cost ItemAnnualMonthly Equivalent
HOA fee~$60/year~$5/month
CDD assessmentVerify at sjcpa.us
Property tax on $425K home (year 1)~$5,051~$421/month
Property tax on $500K home (year 1)~$6,082~$507/month
Homeowners insurance (estimate)$3,500–$5,500/year$292–$458/month
Flood insurance (if in flood zone)$800–$2,400/year$67–$200/month

The Property Tax Math — Your Year-One Number

St. Johns County 2025 millage is 13.47 mills. Florida's standard homestead exemption removes $50,000 from assessed value for primary residents. On a home you buy at $425,000:

StepAmount
Purchase price (assessed at market value, year 1)$425,000
Minus homestead exemption−$50,000
Taxable value$375,000
Multiply by millage (13.47 mills = 0.01347)× 0.01347
Year-1 annual tax bill~$5,051
Monthly equivalent~$421

The seller's current tax bill is lower — often significantly lower — because Florida's Save Our Homes Amendment caps annual assessment increases at 3% for existing owners. A seller who has owned for 10 years may show a bill under $2,500 on a $425K home. Your bill resets to market value the year you close. Full Save Our Homes explanation →

10-Year Cost Projection

Assumes $425K purchase price, CDD estimated at $2,000/year (verify — this is illustrative), HOA at $60/year, 3% annual property tax assessment cap after year 1, and no insurance changes. Actual costs will vary.

YearProperty Tax (est.)HOACDD (est.)Annual Total
1$5,051$60Verify$5,111 + CDD
2$4,900$60Verify$4,960 + CDD
3$4,753$60Verify$4,813 + CDD
5$4,471$60Verify$4,531 + CDD
10$3,869$60Verify$3,929 + CDD

The CDD amount is the critical unknown for WaterSong. Once you identify the specific parcel you are considering, add the confirmed CDD to each year's total above. If the CDD is $2,500/year, your 10-year housing cost (excluding insurance and maintenance) is approximately $50,000–$55,000 above your mortgage.

How WaterSong Compares on Total Cost

Parkland Preserve has a published CDD range of $2,390–$3,924/year with an HOA of $230/quarter. Reverie at Silverleaf has no CDD and an HOA of $198–218/month. Depending on where WaterSong's CDD lands for your specific lot, your total annual carrying cost at WaterSong could be lower or higher than either alternative. See the side-by-side comparison →

Get the confirmed CDD amount for the specific WaterSong homesite you are considering — and compare it to what you would pay at Parkland Preserve or Reverie at Silverleaf.

Talk to a Local Agent →

Property tax estimates use 2025 St. Johns County millage of 13.47 mills with standard $50,000 homestead exemption. CDD amounts vary by parcel and must be verified at sjcpa.us or via seller tax bill. Insurance estimates are ranges only — obtain quotes from licensed insurers. This page is for research purposes only.