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    New Seffner Duplex on Half-Acre Title is generated by Realmo AI

    11421 & 11423 WELDON STREET, Seffner, FL 33584

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    New
    For Sale
    $899,900

    Duplex - SEFFNER, FL

    Type:Duplex
    Property size:
    3,656 SF
    Lot size:
    0.57 Acres
    Price / SF:
    $246/SF
    Added:
    May 14, 2026
    Days on Market:
    2
    Last Refresh:
    May 15 at 3:06 pm

    Property Features for 11421 & 11423 WELDON STREET

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Duplex
    Property condition
    New Construction
    Zoning
    RDC-12
    Bedrooms
    6
    Rooms
    Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5
    Parking features
    Garage, Garage - Attached
    Interior features
    Ceiling Fans(s), Open Floorplan, Split Bedroom, Thermostat, Walk-in Closet(s)
    Exterior features
    Fence, Private Entrance, Private Mailbox
    Fencing
    Fenced
    Appliances
    Dishwasher, Dryer, Microwave, Range, Refrigerator, Washer
    Standard status
    Active
    APN
    U-09-29-20-28Z-000030-00001.0
    Size
    3,656 SF
    Lot size
    0.57 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Annual Amount
    2719.41

    Utilities

    Heating system
    Central
    Cooling system
    Central Air

    Building Details

    Year built
    2025
    Number of units
    2
    Flooring type
    Vinyl
    Building materials
    Block, Stucco
    Roof type
    Shingle
    Architectural style
    Other

    We can help!

    Listing Contact
    Kamilla Altunyan
    Kamilla Altunyan

    Listing agent Kamilla Altunyan License #3333610

    Listing office KELLER WILLIAMS TAMPA CENTRAL 1208 E Kennedy Blvd, Tampa, FL

    Listing date May 14, 2026

    MLS# TB8508064 Listing URL

    Copyright © 2026 Stellar MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Brand new construction duplex (built in 2025).
    • Excellent investment opportunity or owner‑occupied setup with income potential.
    • Each unit features 3 bedrooms and 2 bathrooms with modern finishes and open concept living.
    • Located on over half an acre in the growing Seffner area.
    • Conveniently located near I‑4 and I‑75, providing quick access to Tampa.
    • Each unit includes spacious kitchens with new appliances and private laundry areas.

    Overview

    This newly constructed duplex is situated on over half an acre in the developing area of Seffner, Florida. The property offers an investment opportunity or owner-occupied setup. Each of the two units includes 3 bedrooms and 2 bathrooms, featuring modern finishes and an open-concept living space. The kitchens are equipped with new appliances, and the units have LVP flooring and private laundry areas. Designed for functionality and style, the layouts are suitable for long-term tenants or multi-generational living. The property is conveniently located near I-4 and I-75, providing quick access to Tampa. It is also located minutes from Brandon Mall and various shopping, dining, and entertainment options. This property, with zoning designation RDC-12, offers rental potential in a growing area. The property size is 3656 square feet and the lot size is 0.57 acres.
    Location Intelligence

    Current Use by Public Records

    Duplexes

    Map

    City
    Seffner
    County
    Hillsborough
    State
    Florida
    Longitude
    -82.306378
    Latitude
    27.979052

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    FAQs

    What type of property is this?
    Duplex - New construction duplex in Seffner with strong rental potential.
    Where is this duplex located?
    The property is located at 11421 & 11423 WELDON STREET Seffner, FL.
    What is the asking price?
    The asking price for this property is $899,900.
    What are key features of this property?
    This property features: Brand new construction duplex (built in 2025).; Excellent investment opportunity or owner‑occupied setup with income potential.; Each unit features **3 bedrooms and 2 bathrooms with modern finishes and open concept living.**
    (813) 365-8765
    We can help!
    Listing Contact
    Kamilla Altunyan
    Kamilla Altunyan
    Real Estate License ID: 3333610
    Learn More
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    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

    More about this property
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    11421 & 11423 WELDON STREET, SEFFNER, FL 33584
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