2550 HARBOURSIDE DRIVE UNIT 333, LONGBOAT KEY, FL, 34228
Active7 days on marketListed Oct 5, 2026MLS #A4708474
About this home
2550 HARBOURSIDE DRIVE UNIT 333
Set within the gated BAY ISLES community, this MARINA BAY residence offers a rare combination on Longboat Key: the scale and privacy of a single-family BAYFRONT home with the ease of condominium living. Spanning approximately 3,000 square feet with three bedrooms and two-and-a-half baths, the residence feels expansive and closely connected to Sarasota Bay. Floor-to-ceiling glass across the main living areas and primary suite frames mature mangroves and coastal trees, creating a peaceful, park-like setting with filtered morning light and bay views. Nearly 400 square feet of screened lanai space extends the living area outdoors, while a second west-facing balcony serves the guest bedrooms and captures afternoon light and evening skies. The primary suite offers bay views from bed, terrace access, dual walk-in closets and a spacious bath with soaking tub, dual vanities and glass-enclosed shower. The kitchen features quartz countertops, Sub-Zero refrigeration, generous prep space, a wet bar with beverage refrigerator and a built-in desk nook. A large walk-in laundry room adds substantial workspace and storage. Freshly painted with new carpeting, the residence also features two-zone air conditioning with new condensers installed in 2025, two hot-water tanks with flood-stop protection, air-conditioned storage, assigned garage parking and exceptional closet space. Marina Bay is known for attentive management and a well-run homeowners association, with an experienced on-site manager and amenities including a fitness center, tennis and pickleball courts, heated resort-style pool, EV charging and car-washing facilities. The building's new roof was completed in 2025, and the community is pet-friendly. Longboat Key Club Marina is immediately adjacent, while Publix, CVS, banking and the post office are just blocks away, creating a genuinely walkable daily rhythm uncommon on Longboat Key. Ownership also includes access to the private Bay Isles Beach Club, a gated Gulf-front retreat with parking, pavilions, grilling areas, restrooms and sunset seating. Optional membership at the nearby Longboat Key Club offers golf, tennis, spa and wellness amenities, and waterfront dining. For buyers seeking the comfort and proportions of a home without the maintenance of one, this Marina Bay residence offers an uncommon balance of space, privacy, nature and convenience.
Facts & features
The home at a glance
3
Bedrooms
2.5
Bathrooms
3,067
Sqft
0 ac
Lot size
1
Garage
1990
Year built
One
Levels
$487
Per sqft
Inside
Outside & construction
Community & fees
Utilities & systems
The numbers
What it really costs
Built from this home's actual numbers — the most recent property-tax bill on record — not generic estimates.
$9,553 /mo · 10% down Conventional, 30-yr fixed at 6%
The assumptions
Above the FHA loan limit for our service areas, so Conventional is the default. VA buyers: switch below — $0 down.
These numbers assume a generic buyer — your credit, down payment and loan program change them. Get the real quote in minutes:
Andrew Acosta
Acosta Home Loans with PRMG · NMLS #1468866
Run your own numbers
FHA isn’t available at this price — the loan would exceed the $541,287 FHA limit for our service areas.
Estimated payment
$9,553/mo
Includes estimated PMI — it drops off once you reach 20% equity. Taxes reflect the most recent bill on record; insurance is a typical-Florida estimate. Your lender’s numbers will differ. CENTURY 21 Edge partners with Florida’s best lenders.
Value check
Is the price right?
The internet’s favorite home-value number comes from a single automated model that has never seen the street, the finishes, or the view — which is why it routinely misses by tens of thousands of dollars. The edgeAI estimate combines multiple independent data sources with our team’s on-the-ground expertise in this exact market.
vs edgeAI estimate
−1.3%
$/sqft vs Longboat Key actives
$487 vs $659
Days on market
7 vs 125 typical
Where $487/sqft sits among the 219 Longboat Key actives
The edgeAI estimate is a starting point, not an appraisal or a broker price opinion. It is generated from public records, listing data and market modeling, and is subject to change once a licensed real estate professional personally inspects the property. Condition, floor, view and lot are not fully captured by any model — ask us for a full comparative market analysis.
Where it sits
Inside Longboat Key
Get to know Longboat Key. See the full Longboat Key guide →
LONGBOAT KEY 34228 — neighborhood snapshot
Population
7,512
Median age
71.5
Median income
$143,365
Median home value
$959,200
Avg household
1.8
Households w/ children
51%
For the school run
Sarasota County School District
School assignments and ratings via edgeAI — always verify with the district.
The numbers that matter
The Longboat Key market
$820K → $948K
Longboat Key median sold, yr/yr
93.1%
Sale-to-list ratio (12 mo)
89 of 219
Longboat Key actives have cut their price
Median sold price, Longboat Key, trailing 36 months (3-month rolling) · live MLS data.
This home is listed 168% above the LONGBOAT KEY 34228 median. See the full Longboat Key market guide →
Paper trail
This home's history
Reality check
What actually sold near 2550 HARBOURSIDE DRIVE UNIT 333
Asking prices are opinions — closed sales are facts. The most comparable homes that actually changed hands nearby in the last twelve months.
Sold · Jun ’26$1,495,000
2550 HARBOURSIDE DRIVE UNIT 324 · same community
3 bd · 3 ba · 3,083 sqft · $485/sqft · 118 DOM
Sold · Apr ’26$1,251,000
2450 HARBOURSIDE DRIVE UNIT 212 · same community
3 bd · 2.5 ba · 2,830 sqft · $442/sqft · 6 DOM
Sold · Feb ’26$1,725,000
2550 HARBOURSIDE DRIVE UNIT 322 · same community
3 bd · 3 ba · 2,830 sqft · $610/sqft · 323 DOM
Closed-sale data from the MLS, last 12 months, selected for similarity in size and location. No two homes are identical — ask us for a full comparative analysis.
Your home team
The pros in your corner
Buying a home is two conversations — the home and the money. Here’s who handles each, side by side, already working together.
Your agent
Pedro Ribeiro Gloria
REALTOR® · CENTURY 21 Edge
Tours, negotiation, and every question about 2550 HARBOURSIDE DRIVE UNIT 333 — start here.
Your lender
Andrew Acosta
Acosta Home Loans with PRMG · NMLS #1468866
Pre-approval, rates, and the real monthly number for 2550 HARBOURSIDE DRIVE UNIT 333 — before you fall in love.
See it in person
Schedule a tour
Live availability from Pedro's calendar — pick a time and it's booked. Confirmation lands in your inbox immediately.
Straight answers
2550 HARBOURSIDE DRIVE UNIT 333 FAQs
What would the monthly payment be for 2550 HARBOURSIDE DRIVE UNIT 333?+
With 10% down on a 30-year Conventional loan at 6%, the all-in payment lands around $9,553/mo — principal and interest, the actual property-tax bill and typical Florida insurance. The payment calculator on this page lets you switch loan type (FHA, Conventional, VA) and adjust the down payment, rate and term.
What are the property taxes on 2550 HARBOURSIDE DRIVE UNIT 333?+
The most recent tax bill on record (2025) was $9,185. A new owner's bill can differ once the sale price resets the assessed value — we can walk you through what to expect.
Are pets allowed at 2550 HARBOURSIDE DRIVE UNIT 333?+
The listing reports pets: Yes. Communities often layer on breed or weight rules — we'll verify the specifics with the association before you commit.
How does the price compare to other homes in Longboat Key?+
At $1,495,000, this home is listed about 73% above the Longboat Key median of $863,900. The market section on this page shows how the area is trending.
Which schools are assigned to 2550 HARBOURSIDE DRIVE UNIT 333?+
Booker High School (high), Booker Middle School (middle), Southside Elementary School (elementary) — Sarasota County School District. Always verify school assignments with the district before relying on them.
The brief
Four things that matter here
01Positioned at the premium end
$1,495,000 runs 168% above the LONGBOAT KEY 34228 median — but at 3,067 sqft it's also nearly twice the size of the typical Longboat Key listing.
02Waterfront living
This home sits directly on the water — the single scarcest feature in Florida inventory and the strongest long-term value anchor.
03Fresh on the market
Only 7 days on market in a Longboat Key market that averages 125 — if it fits, move quickly.
04Strong assigned schools
Booker High School, Booker Middle School, Southside Elementary School — Southside Elementary School rates 5 of 5. Always verify assignments with the district.
Keep looking
Similar homes nearby
Listing courtesy of INVESTMENTS IN SARASOTA · Lee Mirman. MLS #A4708474.
IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by Stellar MLS.
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