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    Updated Duplex with Rental Income Title is generated by Realmo AI

    637 W Delavan Avenue, Buffalo, NY 14222

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    Pending
    $499,999

    MULTI_FAMILY - Other - Buffalo, NY

    Property size:
    3,020 SF
    Lot size:
    0.10 Acres
    Added:
    Dec 5, 2025
    Days on Market:
    162
    Last Refresh:
    May 16 at 2:06 pm

    Property Features for 637 W Delavan Avenue

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Bedrooms
    6
    Bathrooms
    2
    Rooms
    Bedroom 5, Bedroom 1, Bedroom 3, Bathroom 1, Bathroom 2, Bedroom 6, Bedroom 4, Basement, Bedroom 2
    Interior features
    Storage
    Exterior features
    Balcony, FullyFenced, PrivateYard
    Fencing
    Fenced
    Appliances
    GasWaterHeater
    Standard status
    Pending
    APN
    140200-089-780-0001-058-000
    Size
    3,020 SF
    Lot size
    0.10 Acres

    Taxes and HOA fees

    Tax Annual Amount
    4943

    Utilities

    Heating system
    Natural Gas, Forced Air
    Cooling system
    Window Unit(s)
    Water source
    Public

    Building Details

    Year built
    1920
    Floors in Building
    2
    Number of units
    2
    Flooring type
    Hardwood, Tile, Varies
    Building materials
    VinylSiding
    Roof type
    Metal
    Architectural style
    Other
    Additional Structures
    Storage

    We can help!

    Listing Contact
    Michael Matyjasik

    Listing agent Michael Matyjasik License #10401295685

    Listing office WNY Metro Roberts Realty 2211 Sheridan Drive, cheektowaga, NY

    Listing date Dec 5, 2025

    MLS# B1653738 Listing URL

    Copyright © 2026 New York State Alliance of MLSs, LLC. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Outstanding rental income potential as a fully updated 3/3 double.
    • Completely remodeled units with modern finishes and spacious layouts.
    • New metal roof (2022), driveway (2023), and fully fenced yard (2023).
    • Move‑in‑ready condition ideal for investors or owner‑occupants.
    • Each unit features updated kitchens and baths.
    • Private, fully fenced yard.

    Overview

    Located in Buffalo, New York, 637 W Delavan presents a renovated duplex with potential for rental income. The property features two units, each with three bedrooms and three bathrooms, that have been remodeled with modern finishes and spacious layouts. Recent improvements include a metal roof installed in 2022, a new driveway added in 2023, and a fully fenced yard also installed in 2023. Each apartment includes bright living spaces, updated kitchens and baths, and is in move-in-ready condition. The property, situated on a 0.097-acre lot, offers 3020 square feet of living space. The property has a strong rental history and income potential, making it suitable for investors or owner-occupants looking to generate income from one unit while residing in the other.

    Financial Insights

    Value Estimation Calculated for Multifamily LT 5

    Conservative
    $333.0K
    NOI $29,966 @ 9.00% cap · cautious / downside scenario
    Moderate
    $428.1K
    NOI $29,966 @ 7.00% cap · market / base-case scenario
    Aggressive
    $599.3K
    NOI $29,966 @ 5.00% cap · optimistic / upside scenario

    NOI & Cap Rate Calculator

    NOI Build-Up
    Vacancy
    income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
    EGI (Effective Gross Income)
    gross rent minus vacancy losses — the realistic income before paying operating costs.
    OpEx (Operating Expenses)
    recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
    NOI (Net Operating Income)
    income a property generates after operating costs but before financing and taxes.
         Calculated for Multifamily LT 5

    Component $ $/SF
    Gross rent $45.3k $15.00
    − Vacancy −$2.5k −$0.83
    EGI $42.8k $14.17
    − OpEx −$12.8k −$4.25
    NOI $30.0k $9.92
    3,020 SF · lease $15.00/SF/yr · vacancy 5.50% · expense 30.00%

    Alternative Use Scenarios

    Best Use
    Multifamily LT 5
    $428.1K
    $374.6K – $499.4K (±1% cap)
    NOI $29,966 @ 7.0% cap · market cap 5.99%
    Second Best
    Apartment 5plus
    $394.3K
    $345.0K – $460.0K (±1% cap)
    NOI $27,601 @ 7.0% cap · market cap 5.52%
    Theoretical Best
    Office A
    $726.2K
    $635.5K – $847.3K (±1% cap)
    NOI $50,837 @ 7.0% cap · market cap 10.17%
    Zoning and permitted uses should be independently verified with local authorities.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Gym & Fitness Center Daycare Center

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Buffalo
    County
    Erie
    State
    New York
    Longitude
    -78.875687
    Latitude
    42.921951

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    FAQs

    What type of property is this?
    Duplex - Remodeled duplex in prime location with strong rental income.
    Where is this duplex located?
    The property is located at 637 W Delavan Avenue Buffalo, NY.
    What is the asking price?
    The asking price for this property is $499,999.
    What are key features of this property?
    This property features: Outstanding rental income potential as a fully updated 3/3 double.; Completely remodeled units with modern finishes and spacious layouts.; New metal roof (2022), driveway (2023), and fully fenced yard (2023).
    (716) 907-6854
    We can help!
    Listing Contact
    Michael Matyjasik
    Real Estate License ID: 10401295685
    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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