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    4240 Duncan Ave St Louis, MO

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    For Lease
    $18 SF/Yr

    202,551 SF creative office in Cortex Innovation District.

    Property size:
    16,751 SF
    Lot size:
    4.40 Acres

    Property Features for 4240 Duncan Ave St

    General Information

    Size
    16,751 SF
    Lot size
    4.40 Acres

    Source: Colliers Agent Rebekah Kingston, CCIM

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    Overview

    Creative Office Space in Cortex

    Located in the heart of the Cortex Innovation District at Duncan & Boyle, this creative office building offers 202,551 square feet of space. The property is situated in a vibrant environment with well-established companies and start-ups. It features excellent building and neighborhood amenities, convenient parking, and adjacency to MetroLink. The building is LEED Platinum certified. Numerous restaurants are located nearby, including Vicia and Park Avenue Cafe, as well as the Aloft Hotel and WXYZ Bar. The property benefits from Cortex Commons, which hosts events, programming, and food trucks. Conference and event space is available. Innovation Plaza, with outdoor seating, is located between the building and 4220 Duncan. A 24/7 fitness center is available at 4220 Duncan. Additional amenities include conference rooms, a cafe, and WiFi. Common area soft seating collaboration areas are provided. The Cortex MetroLink is just steps away, and the property is minutes from nearby Central West End shops, restaurants, and hotels. The available space is 16,751 square feet.
    Location Intelligence

    Current Use by Public Records

    Isalis Gift Shop Party City Party Store Skunk Funk Wholesaler Carl's Trading Co Hat Shop Bushka's Kitchen LLC Outdoor Clothing And Equipment Shop

    Suggested Use

    Restaurant Realty agency Law Firm Building Supply Spa & Massage Dental Office Wholesale Shop Auto Repair Shop Hair Salon Clothing Store

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

    Location Insight

    • Map
    • Local Demand
    City
    Louis
    County
    St. Louis
    State
    Missouri
    Longitude
    -90.1928216
    Latitude
    38.6305392

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    FAQs

    What type of property is this?
    Office space - 202,551 SF creative office in Cortex Innovation District.
    Where is this office space located?
    The property is located at 4240 Duncan Ave St Louis, MO.
    What is the lease rate?
    The lease rate is $18 SF/Yr.
    What are key features of this property?
    This property features: - Prime location in the heart of the Cortex Innovation District.; - **LEED Platinum Certified building (@4240).**; - Convenient access to Cortex MetroLink.
    (314) 852-5134
    Request Owner's contact information
    4240 Duncan Ave St Louis, MO
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    Louis, MO
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    Realmo Value Estimation

    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.

    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.

    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
    4240 Duncan Ave St Louis, MO
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