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Duplex with Remodeled ADU
For Sale
$1,075,000

216 21ST NE AVENUE, St Petersburg, FL 33704

Updated duplex in Old Northeast with a separate one-bedroom accessory dwelling unit and gated boat or RV parking.

Property Size1,966 SF
Price / SF$546.80
Days on Market484

Property Features for 216 21ST NE AVENUE

General Information

Standard status Active
Size 1,966 SF
Property subtype Multi Family

Units

Unit Mix 1 x 2BR/2.5BA, 1 x 1BR/1BA
Multifamily Units 2

Taxes and HOA fees

Annual Taxes $7,611

Amenities

interior laundry room
boat/RV parking

Building Details

Year Built 1959
Listing Agency: COLDWELL BANKER REALTY
Listed By: Judy Horvath · License #3273476
Source: Exitrealty
Added: May 6, 2025 Changed: Aug 31 Last Checked: Aug 31 at 6:12PM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of COLDWELL BANKER REALTY

Investment Insights

Based on property information with market context.

This 1,966-square-foot duplex property, built in 1959, combines a two-bedroom main residence with a separate one-bedroom accessory dwelling unit. The primary home includes two and a half bathrooms, an office, interior laundry, updated windows, restored terrazzo flooring, and a renovated kitchen with gas appliances and extensive cabinetry. New electrical panels and recent air-conditioning work in the guest apartment add to the improvements.

The fully renovated ADU has its own entrance, alley access, kitchen, bathroom, and new air-conditioning system. A large backyard provides outdoor space, while double gates accommodate secure boat or RV storage up to 26 feet. The property is located at 216 21ST NE AVENUE in St. Petersburg’s Old Northeast, within blocks of waterfront parks, downtown dining, arts venues, and neighborhood events.

Key Highlights

  • 1,966‑square‑foot duplex property built in 1959
  • Main residence with 2 bedrooms, 2.5 bathrooms, office, and interior laundry
  • Fully remodeled 1‑bedroom, 1‑bath ADU with private entrance and alley access

Property Analytics

Current Use

Life: Organized Professional Organizer

Suggested Use

Top Pick Daycare Center Building Supply Auto Parts Store Auto Repair Shop Electrical Service Carpet & Flooring Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

671
Businesses Nearby

Demographics for 33704, FL

16,031
Population
9,037
Households
1.8
Avg Household Size
46
Median Age
58%
College-Educated
98%
High-School Grad
3.4 sq mi
ZIP Area
4,715
Density / Sq Mi
$102,647
Median Household Income
$63,803
Median Earnings
$1,398
Median Rent
$657,400
Median Home Value

Market

Vacancy Rate% for Multifamily in South region

8.5% 2022
10.2% 2023
11.4% 2024
11.3% 2025
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Frequently Asked Questions

What type of property is this?
Duplex - Updated duplex in Old Northeast with a separate one-bedroom accessory dwelling unit and gated boat or RV parking.
Where is this duplex located?
The property is located at 216 21ST NE AVENUE St Petersburg, FL.
What is the asking price?
The asking price for this property is $1,075,000.
What are key features of this property?
This property features: 1,966‑square‑foot duplex property built in 1959; Main residence with 2 bedrooms, 2.5 bathrooms, office, and interior laundry; Fully remodeled 1‑bedroom, 1‑bath ADU with private entrance and alley access
More about this property
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