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    Flex/R&D Sublease with Loading Title is generated by Realmo AI

    62 4th Ave, Waltham, MA 02451

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    Flexible space blends offices and R&D, with drive-in and dock loading plus substantial power and backup generation.

    Type:Office
    Property size:
    30,000 SF
    Added:
    Jun 1, 2026
    Days on Market:
    5
    Last Refresh:
    Jun 3 at 2:48 am

    Property Features for 62 4th Ave

    General Information

    Standard status
    Active
    Size
    30,000 SF
    Property subtype
    Office

    Spaces For Lease

    at 62 4th Ave Contact us

    We can help!

    Listing Contact
    Tim Latham

    Listing agent Tim Latham

    Listing office

    Listing date Jun 1, 2026

    Source Lpc

    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 Tim Latham

    HighLights

    • Flex/R&D sublease with an option for full building user; 50% office and 50% R&D layout network
    • Power service includes 3,000 amps, 208/120 V, 3‑phase; loading includes one drive‑in door and one tailboard‑height loading dock
    • On‑site standby power with a 150 kW generator and generator backup
    • HVAC system features DX rooftop units with individually controlled heat/AC in each office/conference space and brand‑new RTUs
    • 3D print lab includes multiple compressed air lines and ventilation to the roof; wet sprinkler system throughout and Inergen fire suppression
    • Parking for 80 spaces and serviced by the 128 Shuttle Service (Alewife Route)

    Overview

    This flex/R&D sublease is laid out as an even split between office and R&D, offering a network-friendly configuration with security and access systems already in place. The space includes telecommunications (RCN, Lightower, and Comcast) and building-ready IT infrastructure, with options to include IT equipment and furniture. Building services support heavier use, including 3,000 amps (208/120V, three-phase) with one drive-in door and one tailboard-height loading dock. HVAC is provided by DX rooftop units, with individually controlled heat and A/C in office and conference areas. The R&D function is supported by a 3D print lab with multiple compressed air lines and ventilation to the roof. Fire and life safety include a wet sprinkler system throughout and an Inergen fire suppression system. With a 150 kW standby generator and generator backup, the facility is positioned for operational continuity.

    Parking is available for approximately 80 vehicles, and the property is serviced by a 128 shuttle service (Alewife Route). Column spacing is 19’ x 25’, providing a consistent platform for flexible space planning.

    This offering is well suited for tenants seeking a turnkey flex/R&D environment that can support both team work areas and lab/production activity. It also presents an opportunity for a full building user, with space upgrades planned for a brand-new roof with a 20-year warranty and new RTUs across the building.
    Location Intelligence

    Current Use by Public Records

    Granite Peak Tech Building Supply

    Suggested Use

    Restaurant Real Estate Agency Law Firm Building Supply Spa & Massage Center Dental Office Big Box & Wholesale Store Auto Repair Shop Hair Salon Nail Salon

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

    Similar Places Nearby

    • Uptown Gourmet — 400 5th Ave #510, Waltham, MA 02451

    Location Insight

    • Map
    • Local Demand
    City
    Waltham
    County
    Middlesex
    State
    Massachusetts
    Longitude
    -71.2575851
    Latitude
    42.3930433

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    FAQs

    What type of property is this?
    Flex space - Flexible space blends offices and R&D, with drive-in and dock loading plus substantial power and backup generation.
    Where is this flex space located?
    The property is located at 62 4th Ave Waltham, MA.
    What are key features of this property?
    This property features: Flex/R&D sublease with an option for full building user; 50% office and 50% R&D layout network; Power service includes 3,000 amps, 208/120 V, 3‑phase; loading includes one drive‑in door and one tailboard‑height loading dock; On‑site standby power with a 150 kW generator and generator backup
    (857) 212-6314
    We can help!
    Listing Contact
    Tim Latham
    Learn More
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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.

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