Harbor by the Sea Co-Op
Homes for Sale in Miami-Dade County, FL
True comps, carrying-cost math, and listings before the portals.
Photo via MIAMI MLS
As of October 2026, Harbor By the Sea Co-Op in FL has 1 home for sale. As of October 2026, the MLS records 5 closed sales in Harbor By the Sea Co-Op in FL since 2022, the most recent in September 2023.
There is no recent closings activity on file for Harbor By The Sea Co-Op, which tells its own story. This is a small, quiet corner of the Miami-Dade market where transactions do not happen on a predictable schedule, and pricing has to be established deal by deal rather than read off a trend line.
For a buyer or seller here, that means valuation work is manual: comparable co-op sales, unit condition, and any building-specific financial or approval requirements carry more weight than any market average would. We would rather tell you that up front than hand you a number we cannot back up.
The 60-Second Overview
Harbor By The Sea Co-Op is a cooperative ownership community in Miami-Dade County with no current MLS-listed amenities and no recent closings data to draw a market read from.
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 Harbor by the Sea Co-Op is best for.
Best for
- Buyers who already understand co-op purchase requirements and are targeting this location specifically
- Buyers comfortable doing direct, unit-by-unit comparable research rather than relying on market averages
- Buyers with flexible timelines who can wait for the right co-op board approval and closing process
Probably not for
- Buyers who want amenity-rich communities with clearly documented on-site facilities
- Buyers who rely on recent comparable sales data to set their offer price
- Buyers who need a fast, conventional financing and closing timeline
The market around Harbor by the Sea Co-Op
Harbor by the Sea Co-Op is too small for its own price trend, so here is the market around it.
In ZIP 33139, 1,060 homes are on the market and 14% are under contract — a slower corner of Miami Beach.
Across Miami-Dade County, 15,314 homes are active and 3,367 pending (18% under contract).
In ZIP 33139, 697 homes closed in the last 12 months at a median of $800K ($765/sq ft), up 2.1% year over year, with a median 95 days on market. Right now 495 active and 79 pending listings — a buyer's market. See the live ZIP 33139 housing market and the Miami-Dade County market.
ZIP and county figures describe the wider market, not Harbor by the Sea Co-Op specifically. Momentum Research analysis of MLS records.
Homes For Sale Right Now in Harbor by the Sea Co-Op
Live MLS inventory for Harbor by the Sea Co-Op. Every active listing, what is under contract right now, and the last 12 months of closed sales, refreshed twice a day. Closed comps beat an algorithm's guess every time.
Active and pending Harbor by the Sea Co-Op listings as of 2026-09-23, priced high to low. Based on information from the Southeast Florida Multiple Listing Service (SEFMLS) or from MIAMI Association of REALTORS(R) for the period 2022 through 2023. Tap any home to ask about it.
Every Home for Sale in Harbor By The Sea Co Op Right Now (1)
All 1 active and pending Harbor By The Sea Co Op listings with a detail page, newest first, refreshed twice a day from the MLS.
- 401 Collins Ave 21 · $220,000 · 1 ba · listed Jul 2, 2026 · listed by Cervera Real Estate Inc.
The Harbor by the Sea Co-Op buying strategy.
If we were buying in Harbor by the Sea Co-Op 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 Harbor by the Sea Co-Op.
A market with no current data trail
Co-op ownership structures already move differently than standard condo or single-family transactions, and Harbor By The Sea's lack of recorded closings in the current window means there is no active pricing pattern to point to. That is not the same as saying nothing is happening here; it means the volume is too thin, or too private, to show up as a trend.
Because MLS data does not currently reflect a specific amenity package for this community, anyone evaluating a unit here should confirm building-level facts directly: maintenance structure, board approval process, and any shared facilities are going to matter more than what a listing sheet says. Co-op purchases typically involve their own layer of financial and association review, and that review is where the real due diligence happens.
The location and the amenities are priced into every listing in Harbor by the Sea Co-Op. The deal is won or lost on condition, the comps, and the renovation math.
Why work with Momentum here
When a community has this little public transaction history, the value of a broker who will do the manual comparable work, verify co-op-specific requirements, and tell you honestly what is and is not knowable goes up, not down. That is the work we do before we ever put a number in front of you.
Harbor by the Sea Co-Op in 15 seconds.
HOA, CDD & Fees
- HOA dues reported around $316/month (about $3,792/yr) · median of 3 MLS listings, most billed monthly
- Any club/amenity membership is billed separately
Listings in this community report association dues of about $316 per month ($3,792 a year) — the median AssociationFee across 3 MLS records, normalised to a monthly figure; most are billed monthly. Dues change with budgets and can differ by section or product type; confirm the current figure with the association before you offer. Source: MLS listing records, 2026-10.
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 Harbor by the Sea Co-Op 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 Harbor by the Sea Co-Op sales matched to your home.
Price it to the comps and condition, not an automated estimate.
If you are thinking about selling in Harbor by the Sea Co-Op, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.
What is your Harbor by the Sea Co-Op home worth?
Get a no-obligation home value based on real comparable sales in Harbor by the Sea Co-Op, 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 homes for sale in Harbor by the Sea Co-Op on the map →
Should you buy in Harbor by the Sea Co-Op?
An honest fit check. We will tell you when it is not your community.
Data sources & freshness
| Live listings | MIAMI MLS, refreshed twice daily (last: September 23, 2026) |
| Under-contract shares | MIAMI MLS records, as of 2026-09-20 |
| Historical depth | Closed-sale records back to 2022 (5 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 MIAMI 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.
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 MIAMI MLS member average and 8 days faster, and we’ll price yours against live local comps.
Looking to buy here? Search homes for sale →
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See how HARBOR BY THE SEA CO-OP fits the bigger picture — live prices, inventory, and Momentum Scores:
Common questions about Harbor by the Sea Co-Op
Where is Harbor by the Sea Co-Op?
Harbor by the Sea Co-Op is a community in Miami-Dade County, Florida, ZIP 33139.
Are there homes for sale in Harbor by the Sea Co-Op right now?
Yes — 1 active and 0 pending listings as of the last feed refresh (twice daily). They are listed on this page.
Does Harbor by the Sea Co-Op have an HOA or CDD?
No HOA is on record for Harbor by the Sea Co-Op in our data. Verify dues, what they cover, and any special assessment for a specific address before you offer.
Answers are generated from county property records, MLS feeds and the figures on this page, as of the page date; deemed reliable but not guaranteed.
Nearby Communities
Explore more neighborhoods near Harbor by the Sea Co-Op with Momentum Realty’s local guides.
The real cost & risk here
Before the list price, the Florida math the portals skip. These are Miami-Dade 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 · Miami-Dade 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.