Add Listing
    For Lease
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Prime Office Space Near Capitol Title is generated by Realmo AI

    1 Massachusetts Ave NW, Washington, DC 20001

    View on Map
    Claim this Listing
    For Lease
    Contact for pricing

    Office building near US Capitol and Union Station available for rent.

    Type:Office
    Property size:
    188,640 SF
    Added:
    Mar 7, 2026
    Days on Market:
    92
    Last Refresh:
    Mar 7 at 7:11 pm

    Property Features for 1 Massachusetts Ave NW

    General Information

    Standard status
    Active
    Size
    188,640 SF
    Property subtype
    Office

    Building Details

    Year Built
    1990

    Spaces For Lease

    at 1 Massachusetts Ave NW Contact us

    We can help!

    Listing Contact
    Michael Goldman
    Michael Goldman

    Listing agent Michael Goldman

    Listing office Transwestern | Mid-Atlantic

    Listing date Mar 7, 2026

    Source Transwestern

    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 Transwestern | Mid-Atlantic

    HighLights

    • Prime location at the corner of N Capitol St and Mass Ave.
    • Two blocks from the US Capitol.
    • One block from Union Station.
    • Built in 1990.
    • Located at 1 Massachusetts Ave NW, Washington DC.
    • Corner property.

    Overview

    Located at the corner of N Capitol St and Massachusetts Avenue NW in Washington, DC, this office building offers a substantial space of 188,640 square feet. The property is situated two blocks from the US Capitol and one block from Union Station, providing convenient access and a prominent location.
    Location Intelligence

    Current Use by Public Records

    Office buildings

    Map

    City
    Washington
    County
    District of Columbia
    State
    District of Columbia
    Longitude
    -77.0095614
    Latitude
    38.8981258

    Nearby Similar for Lease

    • $3,300/Mo
      900 SF

      Capitol Hill East Professional Suite

      Renovated 900 SF suite near U.S. Capitol and Metro.
      1315 PENNSYLVANIA Avenue SE, WASHINGTON, DC 20003
      View Details
    • $45,500 SF/Yr
      8,317 SF

      Move-in Ready Office Sublease

      8,317 sq. ft. office sublease with shared amenities.
      1620 L Street NW, WASHINGTON, DC 20036
      View Details
    • $5,505/Mo
      1,468 SF

      Turnkey Restaurant Space in Anacostia

      Restaurant space available for immediate occupancy in historic Anacostia.
      1211 MARION BARRY AVE SE, WASHINGTON, DC 20020
      View Details
    • $5,500/Mo
      3,453 SF

      Georgia Avenue Commercial Sublease Opportunity

      Flexible mixed-use spaces available in Northwest DC.
      7530 GEORGIA Avenue NW, WASHINGTON, DC 20012
      View Details
    • $2,900/Mo
      3,453 SF

      Georgia Avenue Commercial Sublease

      Flexible commercial spaces available in Northwest DC's Uptown corridor.
      7530 GEORGIA Avenue NW, WASHINGTON, DC 20012
      View Details
    • $4,200/Mo
      750 SF

      Commercial Unit in Capitol Hill

      750 SF commercial unit in a vibrant location.
      521 H Street NE, WASHINGTON, DC 20002
      View Details
    • $32 SF/Yr
      5,500 SF

      Columbia Heights Office Space Available

      Mission-aligned office space in vibrant Columbia Heights, Washington, DC.
      1419 COLUMBIA Road NW, WASHINGTON, DC 20009
      View Details
    • $2,200/Mo

      Two-Story Office Suite with A/C

      Finished office space with central air and multiple work areas, available as one or two separate floor leases.
      635 FLORIDA Avenue NW, WASHINGTON, DC 20001
      View Details
    • $900/Mo

      Capitol Hill Office Sublease

      Furnished office space for lease in prime Capitol Hill location.
      660 PENNSYLVANIA Avenue SE, WASHINGTON, DC 20003
      View Details
    • $8,500/Mo

      Capitol Hill Turnkey Restaurant Space

      Fully built-out restaurant space ready for immediate operation.
      633 PENNSYLVANIA Avenue SE, WASHINGTON, DC 20003
      View Details
    • $2,200/Mo

      Multi-Level Office Space

      Two finished office floors with reception, offices, conference rooms, kitchenettes, bathrooms, and central air.
      635 FLORIDA Avenue NW, WASHINGTON, DC 20001
      View Details
    • $12,000/Mo
      3,913 SF

      Restaurant/Bar Space Near Luxury Apartments

      Former restaurant/bar space near 9th and U Street.
      1934 9TH Street NW, WASHINGTON, DC 20001
      View Details

    FAQs

    What type of property is this?
    Office building - Office building near US Capitol and Union Station available for rent.
    Where is this office building located?
    The property is located at 1 Massachusetts Ave NW Washington, DC.
    What are key features of this property?
    This property features: Prime location at the corner of N Capitol St and Mass Ave.; Two blocks from the US Capitol.; One block from Union Station.
    (202) 706-6201
    We can help!
    Listing Contact
    Michael Goldman
    Michael Goldman
    Learn More
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Thank You for Inquiry
    1 Massachusetts Ave NW, Washington, DC 20001
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!