Harbor by the Sea Co-Op
Homes for Sale in Miami-Dade County, FL
True comps, carrying-cost math, and listings before the portals.
As of November 2026, Harbor By the Sea Co-Op in FL has 1 home for sale. As of November 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.
Figures in this note are as of July 22, 2026. The live market numbers elsewhere on this page update nightly and are newer.
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 .
Across Miami-Dade County, 15,314 homes are active and 3,367 pending (18% under contract).
In ZIP 33139, 132 homes closed in the last 12 months at a median of $985K ($912/sq ft), with a median 84 days on market. Right now 240 active and 26 pending listings put supply at about 21.8 months — a soft 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.
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.
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.
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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: October 8, 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.
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See how HARBOR BY THE SEA CO-OP fits the bigger picture — live prices, inventory, and Momentum Scores: