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This home is in St. Augustine.

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Active

Active·73 days on market

18 Althea Street

St. Augustine, FL 32084

$975,000$439/sqftEst. $5,189/moMLS# 2143486
3
Beds
2
Baths
2,223
Sq Ft
2004
Built
Garage
No
Pool

About this home

St. Augustine

Sometimes you find a home and immediately feel the WOW factor! 18 Althea is one of those homes, nestled in the wooded marsh in the Fullerwood neighborhood of St. Augustine. Built on stilts, the 2,223 SF property sits on .67 of an acre, backing to Robinson Creek. Imagine taking your paddle board or kayak to the intracoastal waterway. The builder spared no detail, importing materials to create a serene retreat like no other. An extended paver driveway leads to a covered parking area and storage, perfect for vehicles, water toys and supplies. Upstairs, the wrap-around porch is welcoming with a bar for seating. Through the double doors, the open-concept great room/dining and kitchen combination is perfect for entertaining. High ceilings are covered in wood. The main floor of the house includes TWO primary suites with large closets and ''matching bathrooms,'' plus a third room with double doors, currently being shown as a bedroom (nonconforming).

Cost to own

Mortgage calculator

$975,000
$195,000
Loan Term
Monthly Payment
$4,956
Principal & Interest: $4,956
Est. Taxes & Insurance: $1,239
Estimated Total Monthly
$6,195
*Estimates based on 30-year loan at 6.55% APR (avg 30-yr rate 2026-07-16, Freddie Mac PMMS via FRED). Actual payments may vary.

Cost to own

True monthly cost

What this home actually costs per month at the asking price — not just the mortgage.

Principal & interest20% down · 7.0% · 30yr$5,189
Property taxesest. at asking price, St. Johns County$1,297
Estimated total, before insurance$6,487/mo
  • • Homeowners insurance is on top — in Florida it varies widely with roof age and wind/flood zone (see the Reality Check below). Budget it before you offer.
  • • In CDD communities (Nocatee, SilverLeaf, eTown…), bond assessments are collected on the property-tax bill — the tax estimate above reflects county averages, so confirm this home’s exact CDD with us.
  • • Taxes are estimated at YOUR purchase price — Florida assessments reset on sale, so the seller’s current bill is usually lower than yours will be.

Cost to own

Taxes & assessment

Last sold: $800,000 in March 2023(county public record, not MLS data)

YearMarket valueTaxable valueChange
2025$664,113$613,391
2024$679,591$679,591
2023$724,243$338,049
2022$719,598$326,747
2021$514,335$315,774
2020$532,300$310,724

2025 property taxes (current owner): $12,326/yr

Estimated taxes if purchased at asking price: ~$15,600/yr

Florida’s Save Our Homes cap limits how fast the current owner’s assessment can rise — and it resets when a home sells, so a buyer’s tax bill is typically based on the purchase price, not the seller’s bill above. Estimate uses the median effective rate across 1,595 current St. Johns listings and includes typical non-ad-valorem assessments; actual taxes depend on exemptions and taxing district. Sources: Florida DOR certified tax roll (2025), NEFMLS.

Storms & insurance

Florida Reality Check

The storm-and-insurance facts every Florida buyer should know up front.

Zone AE — high-risk flood zone (Special Flood Hazard Area)

Lenders require flood insurance for financed purchases here.

Flood damage is not covered by standard homeowners insurance — it’s always a separate policy.

Hurricane evacuation zone A

Zone A evacuates first in a storm — typically coastal and surge-prone areas.

Roof: Shingle — year not disclosed (home built 2004)

Roof age drives Florida insurance pricing more than anything else — worth confirming before you offer.

Sewer · FL0021938 - City of Saint Augustine WWTP - customer accounts · Public water (record)

County records show this parcel on central sewer served by FL0021938 - City of Saint Augustine WWTP - customer accounts — no septic system to inspect or maintain.

Source: Florida DOH Water Management Inventory (public record).

Solar potential: ~1,767 usable sun-hours per year

A strong solar roof by Florida standards — worth pricing panels if energy bills matter to you.

Krista can connect you with local insurance quotes before you make an offer.

Ask about this home

Informational only, based on FEMA National Flood Hazard Layer and Florida Division of Emergency Management data at this property’s coordinates. Zones change with map revisions — verify the parcel at msc.fema.gov and floridadisaster.org/knowyourzone before relying on this.

History

Price & status history

  • May 5, 2026Listed$975,000

History tracked by kristafracke.com from the live MLS feed. Earlier changes may predate tracking.

Features

Price$975,000
Price / Sq Ft$439
Bedrooms3
Bathrooms2.00
Full Baths2
Square Footage2,223
Acres0.67 acres
Year Built2004
TypeResidential
Sub-TypeSingle Family Residence
StyleCraftsman, Stilt, Traditional, Other
StatusActive
# of Carport Spaces2
Has PoolNo
Is WaterfrontYes

School Information

ElementaryKetterlinus
MiddleSebastian
HighSt. Augustine

Community Information

Address18 Althea Street, St. Augustine, FL 32084
Area321-North City-St Augustine
SubdivisionHildreth Back Bay
CitySt. Augustine
CountySt. Johns
StateFL
Zip Code32084
Lot Size29,185.2 sq ft
Parcel Number1511500020
ZoningResidential

Amenities

UtilitiesElectricity Connected, Sewer Connected, Water Connected
SewerPublic Sewer
Water SourcePublic
ParkingCarport
ViewCreek/Stream, Trees/Woods
Waterfront TypeCreek

Interior

Interior FeaturesBreakfast Bar, Ceiling Fan(s), Open Floorplan, Primary Bathroom - Shower No Tub, Vaulted Ceiling(s)
AppliancesMicrowave, Refrigerator, Washer/Dryer Stacked
HeatingCentral
CoolingCentral Air, Split System
FlooringWood
# of Stories2
LevelsOne and One Half

Exterior

Exterior FeaturesFire Pit
RoofShingle
ConstructionFrame

Additional Information

Date ListedMay 5, 2026
Days on Market34
Tax Amount$12,325.79
Tax Year2025
Listing TermsCash, Conventional, VA Loan
55+ CommunityNo
New ConstructionNo

Listing Courtesy of: EXP REALTY LLC

Information deemed reliable but not guaranteed. Data provided by realMLS (Northeast Florida MLS).

Your Local Expert

Krista Fracke - Broker Associate

Krista Fracke

Broker Associate

Interested in this home? I know this area inside and out — let's talk about whether it's the right fit for you.

Text Krista about this home

20+ years · 500+ closings · NE Florida

Curious what nearby homes sold for?

MLS rules keep sold prices off public sites — ask Krista and she'll email you recent sales for this area.

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