Add Listing
    For Lease
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Back to Search
    King of Prussia Flex Space Title is generated by Realmo AI

    640-660 Allendale Rd, King of Prussia, PA 19406

    View on Map
    Claim this Listing
    For Lease
    Contact for pricing

    Move-in ready office, warehouse, and lab/R&D space for rent.

    Type:FLEX_R_AND_D
    Property size:
    50,600 SF
    Added:
    May 20, 2026
    Days on Market:
    8
    Last Refresh:
    May 21 at 7:52 am

    Property Features for 640-660 Allendale Rd

    General Information

    Standard status
    Active
    Size
    50,600 SF
    Property subtype
    FLEX_R_AND_D

    Spaces For Lease

    at 640-660 Allendale Rd Contact us

    We can help!

    Listing Contact
    James Dugan

    Listing agent James Dugan

    Listing office Newmark | King of Prussia

    Listing date May 20, 2026

    Source Moodyscre

    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 Newmark | King of Prussia

    HighLights

    • Immediate access to Rt. 422, I‑76, PA Turnpike, and Rt. 23.
    • SM zoning in Upper Merion Township permits multiple uses.
    • Move‑in ready office, warehouse, and lab/R&D space available.
    • Minutes to the King of Prussia Mall and Town Center.
    • Abundant parking
    • Excellent signage opportunities.

    Overview

    Available for rent is move-in ready flex space suitable for office, warehouse, lab, and R&D purposes. The property is located in King of Prussia, PA, and benefits from SM zoning in Upper Merion Township, which permits multiple uses. The site offers abundant parking and excellent signage opportunities. Its location provides immediate access to Rt. 422, I-76, the Pennsylvania Turnpike, and Rt. 23. The property is also located minutes from the King of Prussia Mall and Town Center. The property size is 50600 square feet.
    Location Intelligence

    Current Use by Public Records

    Flex space

    Suggested Use

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

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

    Similar Places Nearby

    • Michael BBQ — 550 Norwyck Dr, King of Prussia, PA 19406

    Location Insight

    • Map
    • Local Demand
    City
    King of Prussia
    County
    Montgomery
    State
    Pennsylvania
    Longitude
    -75.368336
    Latitude
    40.095912

    Nearby Similar for Lease

    • $1,900/Mo
      880 SF

      King of Prussia Commercial Space

      Versatile commercial space in King of Prussia available for lease.
      570 W DEKALB PIKE, KING OF PRUSSIA, PA 19406
      View Details
    • Sponsored
      $129-$4,006/Mo
      11-1,292 SF

      PA, King of Prussia - American Ave

      680 American Ave, Unit 3RD, King of Prussia, PA 19406
      View Details
    • $129-$5,019/Mo
      11-1,292 SF

      King Of Prussia

      630 Freedom Business Ctr Dr, Unit 3RD, King of Prussia, PA 19406
      View Details
    • $22 SF/Yr
      650 SF

      King of Prussia Retail Space

      Two-story commercial building with basement and high-traffic signage.
      186 E Dekalb Pike, King Of Prussia, PA 19406
      View Details
    • $5,800/Mo
      2,000 SF

      Renovated Two-Story Building For Rent

      2,000 SF renovated building near King of Prussia Mall.
      729 W Dekalb Pike, King Of Prussia, PA
      View Details
    • $2 SF/Yr
      880-880 SF

      Courtside Square Office Space

      Versatile 880 Sq. Ft. commercial space available for immediate lease.
      570 Dekalb St w Pike, Unit 113, King of Prussia, PA 19406
      View Details
    • $26 SF/Yr
      5,745 SF

      Office Space For Lease

      Office space available for lease.
      120 South Warner Road, King of, Prussia, PA 19406
      View Details
    • $19 SF/Yr
      5,000 SF

      Renovated Office Space For Rent

      5,000 SF renovated office space with private elevator access.
      651 Park Ave, King Of Prussia, PA
      View Details
    • $6,300/Mo

      Retail Space Near KOP Mall

      Retail space for rent across from King of Prussia Mall.
      729 W Dekalb Pike, King Of Prussia, PA 19406
      View Details
    • Contact for pricing
      5,938 SF

      King of Prussia Office Sublease

      Office space available for sublease in King of Prussia.
      640 Freedom Business Center Dr, King Of Prussia, PA 19406
      View Details
    • $15 SF/Yr
      40,000 SF

      Finished Office Suites For Rent

      Multiple finished office suites available for rent immediately.
      100 Ross Road, King of Prussia, PA, 19406
      View Details
    • $46 SF/Yr
      31,612 SF

      Class A Office Space

      Upscale office property with amenities in King of Prussia.
      1000 Continental Drive, King of Prussia, PA, 19406
      View Details

    FAQs

    What type of property is this?
    Flex space - Move-in ready office, warehouse, and lab/R&D space for rent.
    Where is this flex space located?
    The property is located at 640-660 Allendale Rd King of Prussia, PA.
    What are key features of this property?
    This property features: Immediate access to Rt. 422, I‑76, PA Turnpike, and Rt. 23.; SM zoning in Upper Merion Township permits multiple uses.; Move‑in ready office, warehouse, and lab/R&D space available.
    (610) 265-0600 Call to check price and availability
    We can help!
    Contact for Pricing
    Please call us for current price
    and status of this listing
    James Dugan
    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
    640-660 Allendale Rd, King Of Prussia, PA 19406
    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!