
$489,900
4105 18th Avenue
St Petersburg, FL 33711
Listing updated: September 21, 2026 at 11:17 AM ET
Property type
Year built
Lot size
Price / sq ft
HOA dues
Days on market
Flood zone
About this home
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.
Estimated monthly payment
Estimate only. Taxes use the listing's reported amount where available; insurance is a Florida-average estimate. Your actual payment will vary — run a full calculation or talk to a lender.
Price & listing history0 days on market
- Status: ActiveSep 21, 2026
- Listed$489,900Sep 21, 2026
- Price increased$489,900
Facts & features
- Property type
- Residential
- Sub type
- Single Family Residence
- Status
- Active
- Days on market
- 0
- Cumulative DOM
- 113
- Subdivision
- St Petersburg Investment Cos Add To Oak Park
- County
- Pinellas
- Year built
- 1922
- Living area
- 1,856 sq ft
- Price/sq ft
- $264
- Building area
- 2,106 sq ft (Owner)
- Lot size
- 8,255 sq ft
- Lot category
- 0 to less than 1/4
- Flood zone
- X (12103C0214H)
- Annual taxes
- $6,475 (2025)
- Parcel #
- 27-31-16-78408-000-0090
- Zoning
- NTM-1
- MLS #
- TB8550484
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Interior Details
- Bedrooms
- 4
- Full bathrooms
- 2
- Flooring
- Luxury Vinyl
- Appliances
- Convection Oven, Dishwasher, Microwave, Range, Refrigerator
- Interior features
- Ceiling Fans(s), Living Room/Dining Room Combo, Open Floorplan
- Laundry
- Electric Dryer Hookup, Laundry Room, Washer Hookup
- Stories / Levels
- One
- Direction faces
- South
- In-law suite
- Yes
Heating & Cooling
- Heating
- Electric
- Cooling
- Wall/Window Unit(s)
Parking
- Garage spaces
- 0
HOA & Financial
- Total monthly fees
- $0/mo
- Total annual fees
- $0
- CDD
- No
- Min lease term
- No Minimum
- Listing terms
- Cash, Conventional, FHA, VA Loan
- Ownership
- Fee Simple
- Available for lease
- Yes
- Lease restrictions
- No
Exterior & Construction
- Exterior features
- Private Entrance, Private Mailbox, Private Yard
- Construction materials
- Frame
- Roof
- Shingle
- Foundation
- Concrete Perimeter, Pillar/Post/Pier
- Road surface
- Paved
Utilities
- Sewer
- Public Sewer
- Water source
- Public
- Utilities
- Cable Connected, Electricity Connected, Sewer Connected, Water Connected
Community
- Pets allowed
- Yes
Schools
Letter grades: Florida DOE 2024–25 school grades (Orange, Seminole, Lake, Osceola, Brevard). Assigned schools from the listing agent — verify enrollment with the district.
Room Details
| Room | Level | Dimensions |
|---|---|---|
| Primary Bedroom | First | |
| Bedroom 2 | First | |
| Bedroom 3 | First | |
| Primary Bathroom | First | |
| Kitchen | First | |
| Dining Room | First | |
| Living Room | First | |
| Laundry | First |
Listing Details
- Listing date
- 2026-09-20
- On market date
- 2026-09-21
- Original list price
- $489,900
- Occupant type
- Tenant
- MLS area
- 33711 - St Pete/Gulfport
- Listing AOR
- Suncoast Tampa
- Status changed
- 2026-09-21
- Tax legal description
- ST PETERSBURG INVESTMENT CO'S ADD TO OAK PARK LOT 9
Flood risk
Minimal-risk area outside the mapped floodplain. Flood insurance is optional and typically low-cost.
Source: FEMA flood zone reported on the listing. Confirm current designation at FEMA Flood Map Service Center.
Location
Directions
From I-275, take Exit 19 for 22nd Avenue South and head west on 22nd Ave S. Turn right (north) onto 34th Street South (US-19), then turn left (west) onto 18th Avenue South. Continue west on 18th Ave S to 41st Street South. The property is on the corner of 18th Ave S and 41st St S, 4105 18th Ave S.
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Listings courtesy of Stellar MLS as distributed by MLS GRID
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.
Based on information submitted to the MLS GRID as of September 21, 2026 at 11:17 AM ET. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
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