Charming St. Petersburg home with its own private guest house! Set on a corner lot at 18th Ave S and 41st St S, this property offers TWO SEPARATE HOMES: a remodeled 3 bedroom / 1 bath main house and a detached 1 bedroom / 1 bath cottage, each with its own private entrance, 4 bedrooms and 2 baths in all. Ideal for extended family or guests who want their own front door and privacy, for a home office or studio, or for living in the main house while the cottage helps with the mortgage. The cottage is currently leased at $1,500 a month, so the income is already in place if you want it, and the main house is vacant and ready for you to move right in. Both homes have been remodeled inside and are move-in ready; the roof was replaced in 2022. No HOA, no rental restrictions, and the property sits in FEMA Flood Zone X (non-evacuation), so lenders do not require flood insurance. Seller is offering a $15,000 credit to the buyer at closing. Minutes to downtown St. Petersburg, the Skyway Marina District, the Gulf beaches and I-275. Come see how much living fits on one lot.
Property Details
Price:
$469,900
MLS #:
TB8550484
Status:
Active
Beds:
4
Baths:
2
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
ST PETERSBURG INVESTMENT COS ADD TO OAK PARK
Neighborhood:
33711stpetegulfport
Listed Date:
Sep 21, 2026
Finished Sq Ft:
1,856
Total Sq Ft:
2,106
Lot Size:
8,255 sqft / 0.19 acres (approx)
Year Built:
1922
See this Listing
Schools
Elementary School:
Fairmount Park Elementary-PN
Middle School:
Azalea Middle-PN
High School:
Boca Ciega High-PN
Interior
Appliances
Convection Oven, Dishwasher, Microwave, Range, Refrigerator
Bathrooms
2 Full Bathrooms
Cooling
Wall/Window Unit(s)
Flooring
Luxury Vinyl
Heating
Electric
Interior Features
Ceiling Fan(s), Living Room/Dining Room Combo, Open Floorplan
Laundry Features
Electric Dryer Hookup, Laundry Room, Washer Hookup
Levels
One
Exterior
Common Walls
Corner Unit
Community Features
None
Construction Materials
Wood Frame
Direction Faces
South
Exterior Features
Private Entrance, Private Mailbox, Private Yard
Lot Features
Corner Lot, City Lot
Other Structures
Guest House
Roof
Shingle
Financial
Tax Year
2025
Taxes
$6,475
Map
Community
- Address4105 18TH AVENUE S ST PETERSBURG FL
- SubdivisionST PETERSBURG INVESTMENT COS ADD TO OAK PARK
- CityST PETERSBURG
- CountyPinellas
- Zip Code33711
Subdivisions in ST PETERSBURG
Market Summary
Current real estate data for Single Family in ST PETERSBURG as of Oct 19, 2026
1,590
Single Family Listed
105
Avg DOM
381
Avg $ / SqFt
$749,776
Avg List Price
Property Summary
- Located in the ST PETERSBURG INVESTMENT COS ADD TO OAK PARK subdivision, 4105 18TH AVENUE S ST PETERSBURG FL is a Single Family for sale in ST PETERSBURG, FL, 33711. It is listed for $469,900 and features 4 beds, 2 baths, and has approximately 1,856 square feet of living space, and was originally constructed in 1922. The current price per square foot is $253. The average price per square foot for Single Family listings in ST PETERSBURG is $381. The average listing price for Single Family in ST PETERSBURG is $749,776. To schedule a showing of MLS#tb8550484 at 4105 18TH AVENUE S in ST PETERSBURG, FL, contact your InvestPro Properties, Inc. agent at 561-203-7022.
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Courtesy of DALTON WADE INC. Disclaimer: All data relating to real estate for sale on this page comes from the Broker Reciprocity (BR) of the Orlando/Tampa – FL. Detailed information about real estate listings held by brokerage firms other than InvestPro Properties, Inc. include the name of the listing broker. Neither the listing company nor InvestPro Properties, Inc. shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. The Broker providing this data believes it to be correct, but advises interested parties to confirm any item before relying on it in a purchase decision. Copyright 2026. Orlando/Tampa – FL. All rights reserved. 4105 18TH AVENUE S
ST PETERSBURG, FL