San Sebastian Heights Unit 3
Homes for Sale in Altamonte Springs, FL
True comps, carrying-cost math, and listings before the portals.
Market Heat
San Sebastian Heights Unit 3 is a fully built-out pocket of 196 homes from the 1970s, with the median build landing in 1977. At a median around $234 per square foot on roughly 1,800 square feet of living space, price here is driven less by location premium and more by condition. Two homes of the same footprint can trade far apart depending on whether the kitchen, baths, roof, and systems have been updated since the original build. The $410,000 median is a midpoint, not a ceiling or a floor.
With a median of 36 days on market, this is a measured market, not a frenzy. Sellers should expect to price to condition and give a well-kept, updated home the marketing runway it deserves. Buyers have room to inspect carefully and negotiate on deferred maintenance, but well-updated homes at a fair number still move. The high homestead share, just over three-quarters of homes, points to a stable, owner-occupied base and limited churn in the available inventory.
San Sebastian Heights Unit 3 right now
🟡 Off the recent peak. The trailing-12-month median ($410K) is down 1.3% from the prior 12 months ($415K). With about 8 sales a year, a single closing can swing this number, so read the level and the decade, not one year's move.Momentum Research, record-level Stellar MLS closed sales, 12-month windows ending July 15. Confidence: Medium (12 and 8 sales in the two windows).
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Updated July 15, 2026 · Live data: Stellar MLS, refreshed twice daily · MLS facts carry their source; interpretation lines are Momentum Research · Data sources & freshness
The 60-Second Overview
San Sebastian Heights Unit 3 market snapshot (as of July 15, 2026): the median sale price is about $410K ($234 per sq ft over the trailing 12 months of closed sales), and a median 41 days on market for closed sales. The trailing-12-month median is down 1% from the prior 12 months, computed from record-level Stellar MLS closed sales (12 closings in the current window).
San Sebastian Heights Unit 3 is a community of 425 homes in Altamonte Springs, Seminole County, built between 1970 and 1979 (median 1977), with a median living area of about 1,716 square feet. 68% of parcels are homesteaded, the owner-occupancy proxy in the Florida DOR assessment roll (2025 roll, public records).
A small, established 1970s community in Altamonte Springs where the homes are done being built and the real variable is how much each one has been updated since. Expect consistent footprints near 1,800 square feet and a market that rewards diligence over speed.
Who San Sebastian Heights Unit 3 is best for.
Best for
- Buyers targeting a mid-$400s footprint who value an established, low-churn setting over a new build
- Renovation-minded buyers willing to trade upfront work for a home priced to its original condition
- Long-hold owner-occupants who want a stable community and time to inspect before committing
Probably not for
- Buyers who need modern construction and current-code systems out of the box
- Anyone on a fast timeline who wants to waive inspections to win
- Buyers expecting a tight price band; condition spreads values widely here
Price History: What Homes Here Have Actually Sold For
Median sale price over the trailing 12 months ending July 15 of each year, from record-level Stellar MLS closed sales. Same methodology as every appreciation figure on this page: the 2026 point ($410K) IS the median in the snapshot above, and the move from 2025 ($415K) IS the -1.3% one-year change.
Windows contain 0 to 23 sales each (12 in the current window); every figure carries its sample size, and thin markets swing on single closings. Based on Stellar MLS data distributed by MLS GRID for the period %s through %s. Deemed reliable but not guaranteed.
The San Sebastian Heights Unit 3 buying strategy.
If we were buying in San Sebastian Heights Unit 3 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 San Sebastian Heights Unit 3.
Condition is the whole story
Because every home here dates to a narrow 1970 to 1979 window, the underlying product is remarkably consistent in age and size. That makes condition the lever that separates one price from another. Roof age, HVAC, plumbing, electrical panels, and window updates all matter more here than in a newer subdivision, and the median around $234 per square foot masks a wide spread once you sort updated from original.
For sellers, that means a renovated home tells a clear story against the untouched comps, and pre-listing attention to systems pays off. For buyers, the 36-day median gives you time to read inspection reports and price the work you will inherit. Homes near schools and everyday services in Altamonte Springs, but treat every listing as a condition question first.
The location and the amenities are priced into every listing in San Sebastian Heights Unit 3. The deal is won or lost on condition, the comps, and the renovation math.
Momentum Buy Score.
Our proprietary 0 to 10 read across the factors that decide how a home in San Sebastian Heights Unit 3 buys, holds, and resells. Momentum Research; not an appraisal.
Momentum Intelligence Scores are our proprietary, qualitative assessment on a 0 to 10 scale, built from the record-level market data on this page. They are a framework for comparing communities, not a guarantee of future value and not advice on a specific home; unlike an automated value estimate they do not price your home, they grade the community on evidence you can inspect. Composite is the plain average of the 3 factors (6.5). Basis: Recent Direction -1.3% year-over-year; Owner Commitment 68% owner-occupied; Pricing Power 95.3% sale-to-list. Refreshed with each data update.
Why work with Momentum here
In a community this uniform in age and size, the money is made in reading condition correctly. We price to what a home actually offers against its comps, flag the systems that will drive an inspection, and keep both sides honest about what the median does and does not tell you. With only a handful of closings in the recent window, every recent sale carries weight, and we know how to weigh them.
San Sebastian Heights Unit 3 in 15 seconds.
HOA, CDD & Fees
- Mandatory HOA — confirm current dues
- 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 San Sebastian Heights Unit 3 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 San Sebastian Heights Unit 3 sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in San Sebastian Heights Unit 3, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your San Sebastian Heights Unit 3 home worth?
Get a no-obligation home value based on real comparable sales in San Sebastian Heights Unit 3, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.
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Frequently Asked Questions
What is the median home price in San Sebastian Heights Unit 3?
How long do homes in San Sebastian Heights Unit 3 take to sell?
How many homes are in San Sebastian Heights Unit 3?
What share of San Sebastian Heights Unit 3 is owner-occupied?
When were the homes in San Sebastian Heights Unit 3 built?
Do cash buyers compete in San Sebastian Heights Unit 3?
Who is the best real estate agent for San Sebastian Heights Unit 3?
How do I find a top Altamonte Springs real estate agent who knows San Sebastian Heights Unit 3?
Can Momentum Realty connect me with an agent for San Sebastian Heights Unit 3?
Should you buy in San Sebastian Heights Unit 3?
An honest fit check. We will tell you when it is not your community.
Data sources & freshness
| Community market stats | Stellar MLS closed sales, 12-month windows ending July 15, 2026 |
| Housing stock & ownership | Florida DOR 2025 assessment roll (street-list match (16 streets, ZIP 32714)) |
| Under-contract shares | Stellar MLS records, as of 2026-07-12 |
| Historical depth | Closed-sale records back to 2005 (108 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 Stellar MLS 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.
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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 Stellar MLS member average and 8 days faster, and we’ll price yours against live your area comps.
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