Sign Up Successful!
You now have access to more from Realmo!
Property Lookup
    Property Lookup
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    800 Delaware Ave Wilmington, DE 19801-1322

    • Office Properties & Spaces
    • 8,784 SF
    • 0.47 lot acres
    OFF-MARKET
    Value Estimations
    $1,885,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US17-0143008
    The Realmo ID is a unique identifier assigned to every property, incorporating country codes and precise geo-coordinates for 300x300-foot land blocks. It enables standardized data collection and seamless integration of disparate sources such as ownership, tax, title data and physical specifications. By aggregating current and historical records, the Realmo ID powers advanced analytics and delivers deep, verifiable insights for real estate professionals.

    Current Use by Public Records

    • Gilbert John / Law Firm
    • Heckler & Frabizzio / Law Firm
    • Adp Capital Management Inc / Consultant / Banking And Finance
    • NCIA Insurance Delaware / Insurance Agency
    • Accell Orthopedics / Medical Clinic

    Property Details for 800 Delaware Ave

    Year built
    1967
    Construction
    ADOBE
    Lot size
    0.47 lot acres
    Property size
    8,784 SF
    Zone code
    26C-6
    Property type
    Office Properties & Spaces
    APN
    26-028.10-020
    APU
    2602810020

    Description

    This exceptional sublease opportunity presents 61,103 square feet of prime executive office space, strategically located in a 10-story Class A office building in downtown Wilmington, Delaware. The available space is distributed across the 4th, 5th, and 10th floors, offering flexibility for businesses of various sizes. The lease term extends through December 31, 2028, providing long-term stability. The building's prestigious address at 800 Delaware Avenue, in zip code 19801, places your business in the heart of Wilmington's vibrant commercial district. Convenience is paramount with abundant parking options within a one-block radius, ensuring easy access for employees and clients. The property's proximity to Christiana Hospital and Interstate 95 further enhances its appeal, offering convenient access to healthcare and major transportation arteries. Commuting to and from Philadelphia International Airport is also straightforward, with a travel time of approximately 20 minutes. This is an unparalleled chance to secure high-quality office space in a desirable location with a substantial lease term remaining. The property is categorized as multiple tenancy and offers two distinct spaces totaling between 15,807 and 29,593 square feet. This presents a unique opportunity to tailor the space to your specific business needs. Contact us today to learn more about this exceptional sublease opportunity.

    Value Estimations

    based on Realmo’s proprietary methodology

    • CAP approach

      CAP Return
      Estimation
      6%
      $1,490,000
      6.5%
      $1,375,000
      7%
      $1,280,000

    • Alternative Use

      Use
      Estimation
      COMMERCIAL (GENERAL)
      $1,815,000
      Current use
      RETAIL STORES
      $1,810,000
      Change: -0% Conversion: Easy

    Get a detailed, property-specific valuation — fast and free

    Location Insight

    • Map
    • Local Demand
    City
    Wilmington
    County
    New Castle
    State
    Delaware
    Longitude
    -75.5541
    Latitude
    39.7497
    CBSA code
    37980
    CBSA name
    PHILADELPHIA-CAMDEN-WILMINGTON, PA-NJ-DE-MD METROPOLITAN STATISTICAL AREA

    Property Tax & Assessments

    Tax date
    Tax Amount
    Assessed Land Value
    Assessed Improvement Value
    Total Assessed Value
    Applied Tax Rate
    Land Market Value
    Improvement Market Value
    Total Market Value
    2023
    $173,102
    $875,000
    $3,925,000
    $4,800,000
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $665,000
      2,698 SF

      9 4th St

      OFFICE (GENERAL) • 2,698 SF
      9 4th St, Wilmington, DE 19801
      View Details
    • Value Estimation
      $4,430,000
      29,000 SF

      100 St

      OFFICE (GENERAL) • 29,000 SF
      100 St, Wilmington, DE 19801-5015
      View Details
    • Value Estimation by Request
      936 SF

      13 12th St

      OFFICE (GENERAL) • 936 SF
      13 12th St, Wilmington, DE 19801
      View Details
    • Value Estimation
      $5,535,000
      26,979 SF

      802 Delaware Ave

      OFFICE (GENERAL) • 26,979 SF
      802 Delaware Ave, Wilmington, DE 19801-1377
      View Details
    • Value Estimation
      $5,735,000
      27,900 SF

      1 Riv Pl

      OFFICE (GENERAL) • 27,900 SF
      1 Riv Pl, Wilmington, DE 19801-5125
      View Details
    • Value Estimation
      $16,870,000
      121,370 SF

      815 Justison St

      OFFICE (GENERAL) • 121,370 SF
      815 Justison St, Wilmington, DE 19801-5156
      View Details

    Similar Nearby for Sale

    • $324,900
      5,079 SF

      Downtown Wilmington Office Condo

      5,079 SF Office Condo, $324,900
      625 Orange St, Wilmington, DE 19801
      View Details
    • $225,000
      1,080 SF

      Downtown Wilmington Executive Office

      Prime 1,080 SF Retail/Office Space
      107 9Th St, Wilmington, DE 19801
      View Details
    • $1,250,000
      7,200 SF

      Wilmington Office Building For Sale

      Multi-story office building in Wilmington's Central Business District.
      1205 N Orange St, Wilmington, DE 19801
      View Details
    • Contact for pricing
      5,760 SF

      Wilmington Office Building For Sale

      5,760 SF office building in Wilmington's thriving downtown core.
      921 N Orange St, Wilmington, DE 19801
      View Details
    • $400,000
      4,326 SF

      Downtown Wilmington Professional Office Space

      Professional office space in Downtown Wilmington near Courthouse and Government Center.
      Wilmington, DE 19801
      View Details
    • Contact for pricing
      10,000 SF

      Wilmington Opportunity Zone Office Building

      Four-story office building in Wilmington's Central Business District.
      716 N Tatnall St, Wilmington, DE 19801
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      249,799 SF

      PNC Bank Center: Premier Wilmington Office

      Class A Office Space, Downtown Wilmington
      222 Delaware Ave, Wilmington, DE 19801
      View Details
    • $22 SF/Yr
      86,397 SF

      Prime Wilmington Executive Suites

      82,518 SF Available, Delaware
      919 Market St, Wilmington, DE 19801
      View Details
    • Contact for pricing
      160,600 SF

      Wilmington Executive Office Space

      Prestigious Wilmington office suites available.
      600 King St, Wilmington, DE 19801
      View Details
    • Contact for pricing
      5,177 SF

      Office Space Near Wilmington Station

      Office space for rent near Wilmington Train Station and Riverfront.
      233 N King St, Wilmington, DE 19801
      View Details
    • $11 SF/Yr
      19,226 SF

      Renovated Warehouse with Two-Story Office

      Renovated warehouse with office space near I-95 and Port.
      900 S Heald St, Wilmington, DE 19801
      View Details
    • $22 SF/Yr
      97,036 SF

      Class A Office Space Available

      Class A office space with convenient access to transportation and amenities.
      919 North Market St, Wilmington, DE 19801
      View Details
    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.
    800 Delaware Ave
    Wilmington, DE 19801-1322
    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

    Google sign-in failed. Please try again or use another login method.