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    Fairfax Office Condo For Sale Title is generated by Realmo AI

    3913 BLENHEIM Boulevard, Fairfax, VA 22030

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    For Sale
    $380,000

    Commercial Sale - FAIRFAX, VA

    Type:Office
    Property size:
    1,134 SF
    Price / SF:
    $335/SF
    Added:
    May 27, 2026
    Days on Market:
    2
    Last Refresh:
    May 28 at 5:06 pm

    Property Features for 3913 BLENHEIM Boulevard

    General Information

    Property type
    Other
    Property subtype
    Office
    Parking
    1
    Parking features
    Assigned, Parking Lot, Special Needs
    Standard status
    Active
    Size
    1,134 SF

    Taxes and HOA fees

    Tax Annual Amount
    3684

    Utilities

    Heating system
    Forced Air
    Cooling system
    Central Air

    Building Details

    Year built
    1989
    Number of units
    1
    Building materials
    Brick

    We can help!

    Listing Contact
    Sean M McMahon

    Listing agent Sean M McMahon License #0225269269

    Listing office Samson Properties 14291 Park Meadow Drive unit: 500, Chantilly, VA

    Listing date May 27, 2026

    MLS# VAFC2008370

    Copyright © 2026 Bright 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

    • Prime location in desirable Old Town Fairfax, offering high visibility and established commercial presence.
    • Versatile 1,134 sq. ft. space suitable for professional, medical, or spa use, featuring a functional layout.
    • Ground‑level location with handicap accessibility and generous parking, ensuring convenience.
    • Well‑maintained and lightly used since 1994, reflecting excellent condition.
    • New windows and blinds installed in 2022, enhancing energy efficiency.
    • Convenient access to major commuter routes, George Mason University, Courthouse Shopping Plaza, and Inova Hospital.

    Overview

    Located in a desirable commercial area of Fairfax, this 1,134 sq. ft. office condo in Old Town Fairfax offers a ground-level location, handicap accessibility, and generous parking. The well-maintained space is suitable for professional, medical, or spa use. The interior includes a reception area, two exam rooms, two offices, flex space, a bathroom, a kitchenette, and a supply room. New windows and blinds were installed in 2022. Owned by the same owner since 1994, the suite has seen minimal use and remains in excellent condition. The office condo is conveniently located near major commuter routes, George Mason, Courthouse Shopping Plaza, and Inova Hospital, providing an opportunity to establish or expand a business in an accessible commercial corridor in Northern Virginia.

    Financial Insights

    Value Estimation Calculated for Office B

    Conservative
    $238.5K
    NOI $21,466 @ 9.00% cap · cautious / downside scenario
    Moderate
    $306.7K
    NOI $21,466 @ 7.00% cap · market / base-case scenario
    Aggressive
    $429.3K
    NOI $21,466 @ 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 Office B

    Component $ $/SF
    Gross rent $33.5k $29.52
    − Vacancy −$4.9k −$4.28
    EGI $28.6k $25.24
    − OpEx −$7.2k −$6.31
    NOI $21.5k $18.93
    1,134 SF · lease $29.52/SF/yr · vacancy 14.50% · expense 25.00%

    Alternative Use Scenarios

    Best Use
    Office B
    $306.7K
    $268.3K – $357.8K (±1% cap)
    NOI $21,466 @ 7.0% cap · market cap 5.65%
    Second Best
    Healthcare Medical
    $295.2K
    $258.3K – $344.4K (±1% cap)
    NOI $20,663 @ 7.0% cap · market cap 5.44%
    Theoretical Best
    Specialty Retail
    $4.75M
    $4.16M – $5.55M (±1% cap)
    NOI $332,741 @ 7.0% cap · market cap 87.56%
    Zoning and permitted uses should be independently verified with local authorities.
    Property Profile Location Intelligence

    Current Use by Public Records

    Office Units

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Fairfax
    County
    Fairfax
    State
    Virginia
    Longitude
    -77.3017
    Latitude
    38.84703

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    FAQs

    What type of property is this?
    Office units - Well-maintained 1,134 sq ft office condo in Old Town Fairfax.
    Where is this office units located?
    The property is located at 3913 BLENHEIM Boulevard Fairfax, VA.
    What is the asking price?
    The asking price for this property is $380,000.
    What are key features of this property?
    This property features: Prime location in desirable Old Town Fairfax, offering high visibility and established commercial presence.; Versatile 1,134 sq. ft. space suitable for professional, medical, or spa use, featuring a functional layout.; Ground‑level location with handicap accessibility and generous parking, ensuring convenience.
    (571) 489-9363
    We can help!
    Listing Contact
    Sean M McMahon
    Real Estate License ID: 0225269269
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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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