5155 ISLA KEY BOULEVARD S UNIT 307, ST PETERSBURG, FL, 33715
Active91 days on marketListed May 13, 2026MLS #TB8508254
About this home
5155 ISLA KEY BOULEVARD S UNIT 307
Welcome to one of Isla Key’s premier waterfront view opportunities. This desirable 3-bedroom, 2-bath end-unit condo offers 1,255 square feet of bright, comfortable living space and the kind of open, unobstructed balcony view buyers hope to find. From the moment you enter, wide sliding glass doors frame expansive water views and draw the coastal setting right into the home. The open living and dining area flows naturally to the private waterfront balcony, creating an ideal layout for relaxing, entertaining, or simply enjoying the scenery. The spacious kitchen features warm wood cabinetry, granite countertops, stainless steel appliances, and a breakfast bar connection to the main living space. Thoughtful updates add to the home’s everyday comfort, including wood-look flooring, generous natural light, and a beautifully tiled walk-in shower with built-in niche and bench. The end-unit position enhances the sense of privacy, with no direct balcony view into neighboring units and a standout vantage point over the water. Whether you are looking for a full-time residence, seasonal retreat, or low-maintenance waterfront escape, this condo delivers the lifestyle so many buyers seek in St. Petersburg. Isla Key is known for its resort-style waterfront setting on Boca Ciega Bay, offering a heated waterfront pool, spa, tennis and pickleball courts, grilling areas, kayak and water access, beach-style lounging areas, and beautifully maintained grounds. Located along the Pinellas Bayway, you are just minutes from St. Pete Beach, Fort De Soto, Isla Del Sol, downtown St. Petersburg, restaurants, shopping, and convenient airport access. With its exceptional water view, private balcony setting, end-unit location, and sought-after Isla Key amenities, this condo is a standout opportunity to enjoy the Florida waterfront lifestyle.
Facts & features
The home at a glance
3
Bedrooms
2
Bathrooms
1,255
Sqft
0.3 ac
Lot size
1987
Year built
One
Levels
$446
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.
$4,498 /mo · 3.5% down FHA, 30-yr fixed at 6%
The assumptions
FHA is the default here because it gets you in the door with just 3.5% down. Switch to Conventional or VA below.
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
Estimated payment
$4,498/mo
Includes FHA mortgage insurance and the financed 1.75% upfront premium. 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.
$/sqft vs St Petersburg actives
$446 vs $336
Days on market
91 vs 58 typical
Where $446/sqft sits among the 400 St Petersburg 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 Bayway Isles
Drive times from this address
Estimated driving times, typical traffic. Data © OpenStreetMap contributors.
Get to know St Petersburg. See the full St Petersburg guide →
Bayway Isles — neighborhood snapshot
Population
1,734
Median age
69
Median income
$52,097
Median home value
$470,700
Avg household
2
Households w/ children
43%
For the school run
Pinellas County School District
School assignments and ratings via edgeAI — always verify with the district.
The numbers that matter
The St Petersburg market
$380K → $402K
St Petersburg median sold, yr/yr
95.8%
Sale-to-list ratio (12 mo)
225 of 400
St Petersburg actives have cut their price
Median sold price, St Petersburg, trailing 36 months (3-month rolling) · live MLS data.
This home is listed 122% above the ST PETERSBURG 33715 median. See the full St Petersburg market guide →
Paper trail
This home's history
Reality check
What actually sold near 5155 ISLA KEY BOULEVARD S UNIT 307
Asking prices are opinions — closed sales are facts. The most comparable homes that actually changed hands nearby in the last twelve months.
Sold · Feb ’26$585,000
5155 ISLA KEY BOULEVARD S UNIT 401 · same community
2 bd · 2 ba · 1,255 sqft · $466/sqft · 65 DOM
Sold · Mar ’26$613,550
5279 ISLA KEY BOULEVARD S UNIT 113 · same community
2 bd · 2 ba · 1,255 sqft · $489/sqft · 27 DOM
Sold · Sep ’25$629,000
5279 ISLA KEY BOULEVARD S UNIT 313 · same community
2 bd · 2 ba · 1,255 sqft · $501/sqft · 151 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
Dan Schriver
REALTOR® · CENTURY 21 Edge
Tours, negotiation, and every question about 5155 ISLA KEY BOULEVARD S UNIT 307 — start here.
Your lender
Andrew Acosta
Acosta Home Loans with PRMG · NMLS #1468866
Pre-approval, rates, and the real monthly number for 5155 ISLA KEY BOULEVARD S UNIT 307 — before you fall in love.
See it in person
Schedule a tour
Pick a day that works — this goes straight to Dan's phone and CRM.
Straight answers
5155 ISLA KEY BOULEVARD S UNIT 307 FAQs
What would the monthly payment be for 5155 ISLA KEY BOULEVARD S UNIT 307?+
With 3.5% down on a 30-year FHA loan at 6%, the all-in payment lands around $4,498/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 5155 ISLA KEY BOULEVARD S UNIT 307?+
The most recent tax bill on record (2025) was $9,533. 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 5155 ISLA KEY BOULEVARD S UNIT 307?+
The listing reports pets: Size Limit, 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 St Petersburg?+
At $559,900, this home is listed about 29% above the St Petersburg median of $435,000. The market section on this page shows how the area is trending.
Which schools are assigned to 5155 ISLA KEY BOULEVARD S UNIT 307?+
Bay Point Middle School (middle), Gulfport Montessori Elementary School (elementary), Lakewood High School (high) — Pinellas County School District. Always verify school assignments with the district before relying on them.
The brief
Three things that matter here
01Positioned at the premium end
$559,900 runs 122% above the ST PETERSBURG 33715 median.
02Waterfront living
This home sits directly on the water — the single scarcest feature in Florida inventory and the strongest long-term value anchor.
03The price has already moved
Listed at $579,000, now $559,900 — a $19K cut. The full history is in the market section below.
Keep looking
Similar homes nearby
Listing courtesy of EXP REALTY LLC · Kevin Cahill. MLS #TB8508254.
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.
Never miss a listing
New St Petersburg homes, in your inbox
Like 5155 ISLA KEY BOULEVARD S UNIT 307 but not quite? A daily digest of every new listing in St Petersburg — straight from the MLS, hours after it goes live. Unsubscribe anytime.
Just watching this one home? Ask Dan to ping you on any price or status change →