Lake Sienna
Homes for Sale in St. Augustine, FL
All 1,147 homes for sale in St. Augustine, FL · median $479,990 · 166 homes for sale in 32080 · St. Johns County homes for sale
True comps, carrying-cost math, and listings before the portals.
Photo via realMLS
As of October 2026, the MLS records 11 closed sales in Lake Sienna in St. Augustine, FL since 2007, the most recent in August 2026. Across St. Augustine as a whole, 2,438 homes closed in the last 12 months at a median of $445,000, 48 median days on market, with 692 homes for sale today. At that median and St. Johns County's FY2025-26 rate of 13.47 mills, annual property tax runs about $5,990 ($5,480 with the full homestead exemption).
I don't have a current pricing or inventory snapshot for Lake Sienna in front of me, so I'm not going to pretend a number exists. What I can tell you is location-driven: this is a St. Augustine address inside St. Johns County, and that alone shapes how a home here trades relative to the broader county.
Until we pull live figures for you, treat any price you see elsewhere as unverified. The honest posture right now is to confirm the current listings, recent closings, and days-on-market directly before either side commits to a strategy. That's the difference between a real read and a guess.
Nearby homes for sale
No active listings inside Lake Sienna right now. These are the 6 closest homes on the market, by straight-line distance from the community's center; some may sit just outside its boundary.
Listing data from the MLS feeds named on each listing page; deemed reliable but not guaranteed. Refreshed nightly.
The 60-Second Overview
Lake Sienna sits in St. Augustine, within St. Johns County. Beyond the location itself, we're withholding market characterizations until we can ground them in a current, verified snapshot rather than assumptions.
realMLS (Northeast Florida) sales records identify 8 homes in Lake Sienna that have changed hands since 2014, built between 1967 and 2015 (median 2003), with a median living area of about 2,060 sq ft and a typical 3-bedroom, 2.5-bath layout; 88% are single-family homes. Source: realMLS (Northeast Florida) closed-sale history compiled by Momentum Research; counts reflect homes with a recorded MLS sale, not every home in the community.
County records show 3 qualified sales in Lake Sienna across 2024–2025 (2 in 2024, 1 in 2025), median $693,000 — the last recorded sale per parcel on the Florida DOR 2025 assessment roll, independent of the MLS.
Pre-construction details are compiled from public records, builder announcements and builder listings, and are subject to change without notice; figures are deemed reliable but not guaranteed. Momentum Research figures are our own analysis. This page describes homes, pricing and community attributes, not residents.
Who Lake Sienna is best for.
Best for
- Buyers set on a St. Augustine address inside St. Johns County who want a specific community rather than a wide search
- Buyers who value working from verified, current market data before making an offer
- Sellers who want a grounded pricing conversation based on recent closings rather than a headline number
Probably not for
- Buyers who need an instant price benchmark and won't wait for a verified snapshot
- Buyers whose search isn't tied to St. Augustine or St. Johns County
- Anyone wanting decisions driven by an automated estimate rather than confirmed comparables
The market around Lake Sienna
Lake Sienna is too small for its own price trend, so here is the market around it.
In ZIP 32080, 233 homes are on the market and 14% are under contract — a slower corner of St. Augustine.
Across St. Johns County, 1,952 homes are active and 794 pending (29% under contract).
In ZIP 32080 (St. Augustine), 483 homes closed in the last 12 months at a median of $468K ($323/sq ft), down 6.1% year over year, with a median 46 days on market. Right now 123 active and 32 pending listings put supply at about 4.2 months — a balanced market. See the live ZIP 32080 housing market and the St. Johns County market.
ZIP and county figures describe the wider market, not Lake Sienna specifically. Momentum Research analysis of MLS records.
The Lake Sienna buying strategy.
If we were buying in Lake Sienna today, this is the order of operations we would run for our clients.
Underwrite the condition first. Price the roof, HVAC, and systems honestly before judging any list price; condition swings value here more than square footage alone.
Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.
Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.
Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.
Keep an agent in your corner. The listing agent works for the seller; we represent you and prepare a hand-built valuation before any offer in Lake Sienna.
A closer look at the Lake Sienna market
The housing stock is 21 homes built between 1979 and 2023, and 73% of parcels are homesteaded — the owner-occupancy proxy in the Florida DOR assessment roll.
The location and the amenities are priced into every listing in Lake Sienna. The deal is won or lost on condition, the comps, and the renovation math.
Why work with Momentum here
We're a Northeast Florida brokerage that works St. Johns County closely, and we'd rather tell you what we don't yet know than fill the gap with invented numbers. For Lake Sienna, that means we'll pull current listings, recent closings, and days-on-market for you before we shape a buying or selling plan — so the strategy rests on real data, not a stock description.
HOA, CDD & Fees
- HOA status not on record. Verify any dues before you offer
- Any club/amenity membership is billed separately
Confirm the current HOA dues, exactly what they cover, and any CDD bond or special assessment for a specific address before you offer.
Tools for a Lake Sienna buy.
Free calculators to pressure-test the real cost before you tour.
Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed Lake Sienna sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Lake Sienna, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Lake Sienna home worth?
Get a no-obligation home value based on real comparable sales in Lake Sienna, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.
See all homes for sale in St. Augustine →
Recently off market in Lake Sienna
Homes in Lake Sienna that recently left the market. Each address opens its public-record profile: county-recorded value, property taxes, the last recorded sale, community sales history, and what is for sale nearby now. 1 on record.
- 3 Geberts Way · off market
The real cost & risk here
Before the list price, the Florida math the portals skip. These are St. Johns County typicals — your exact home, flood zone, and insurance quote will vary, so verify each before you offer.
Check it for your address: look up your flood zone (FEMA) · insurance by county · true-cost calculator · St. Johns County scorecard.
County typicals from Momentum’s Florida housing data (Zillow & Realtor.com aggregates, Census, FRED), updated monthly; insurance modeled. Flood zone is property-specific — always confirm via FEMA.
Frequently Asked Questions
How many homes are in Lake Sienna?
What share of Lake Sienna is owner-occupied?
When were the homes in Lake Sienna built?
Who is the best real estate agent for Lake Sienna?
How do I find a top St. Augustine real estate agent who knows Lake Sienna?
Can Momentum Realty connect me with an agent for Lake Sienna?
Where is Lake Sienna, and what county is it in?
How far is Lake Sienna from downtown Jacksonville and the beach?
Should you buy in Lake Sienna?
An honest fit check. We will tell you when it is not your community.
Data sources & freshness
| Live listings | realMLS, refreshed twice daily (last: October 1, 2026) |
| Housing stock & ownership | Florida DOR assessment roll (street-list match (2 streets, ZIP 32080)) |
| Under-contract shares | realMLS records, as of 2026-10-01 |
| Historical depth | Closed-sale records back to 2007 (11 transactions analyzed) |
Verify the primary sources yourself: Florida DOR · U.S. Census · FEMA flood maps · Citizens Property Insurance.
Momentum Research figures are our own analysis of realMLS records; MLS data is deemed reliable but not guaranteed. Methodology: how Momentum market scores are computed. Market metrics describe homes for sale and recent sales, not residents.
Own a home here?
You just read the data. Now see what your home is worth.
The numbers on this page move markets in the aggregate. The number that matters to you is what a buyer pays for your address. Momentum sells for 1.25% above the realMLS member average and 8 days faster, and we’ll price yours against live local comps.
Looking to buy here? Search homes for sale →
What’s your home worth in your area?
A real valuation with real comps from a local listing agent, not an instant algorithm. Response within one business day.
See how Lake Sienna fits the bigger picture — live prices, inventory, and Momentum Scores:
Schools serving nearby communities
We do not have a confirmed school assignment for Lake Sienna. These are the public schools most often assigned to other communities in ZIP 32080; zones change and vary by address, so confirm with the district before you buy.
- St. Augustine High School · High · FLDOE grade A (assigned to 25 nearby communities)
- Sebastian Middle School · Middle · FLDOE grade A (assigned to 17 nearby communities)
- R.B. Hunt Elementary School · PreK-5 (assigned to 12 nearby communities)
- R. B. Hunt Elementary School · Elementary · FLDOE grade A (assigned to 8 nearby communities)
- Gamble Rogers Middle School · Middle 6-8 · FLDOE grade A (assigned to 8 nearby communities)
Assignments from district data for neighboring communities; grades are official Florida Department of Education school grades (2025-26).
Nearby Communities
Explore more neighborhoods near Lake Sienna with Momentum Realty’s local guides.