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    San Juan Office Space Available Title is generated by Realmo AI

    644 FERNANDEZ JUNCOS, San Juan 00907

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    For Lease
    $6,500/Mo $32 SF/Yr (calc)

    Office - SAN JUAN, PR

    Type:Office
    Property size:
    2,385 SF
    Lot size:
    0.05 Acres
    Added:
    Apr 10, 2026
    Days on Market:
    60
    Last Refresh:
    Jun 8 at 5:06 am

    Property Features for 644 FERNANDEZ JUNCOS

    General Information

    Property type
    Commercial Lease
    Property subtype
    Office
    Parking features
    Secured, Underground/Basement
    Security features
    Fire Sprinkler System, Security System, Security System Owned
    Standard status
    Active
    APN
    040104716016011
    Size
    2,385 SF
    Lot size
    0.05 Acres

    Utilities

    Cooling system
    Central Air

    Building Details

    Year built
    1970
    Flooring type
    Carpet
    Building materials
    Concrete, Frame
    Roof type
    Concrete
    Architectural style
    Other

    We can help!

    Listing Contact
    Martha Nasser Joya

    Listing agent Martha Nasser Joya License #15323

    Listing office NASSER JOYA MARTHA PO Box 194162, San Juan

    Listing date Apr 10, 2026

    MLS# PR9120724 Listing URL

    Copyright © 2026 Stellar MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Prime location near the Convention District and Puerto Rico Convention Center, offering easy access to hotels, dining, and luxury condominiums.
    • Eight parking spaces, including six covered, a rare and valuable amenity.
    • Functional 2,385 SF space with a spacious reception area, open common area, five private offices, and a conference room.
    • 24/7 security, controlled access, and full backup generator for business continuity.
    • Includes an employee lounge/break area on a mezzanine level.
    • Well‑maintained building with two elevators, intercom system, and water cistern.

    Overview

    This 2,385 square foot office space is strategically located near the Convention District and the Puerto Rico Convention Center, offering access to major hotels such as the Sheraton Puerto Rico Resort & Casino and Hyatt House San Juan, luxury condominiums, and the dining options of Miramar. The functional space includes a spacious reception area, an open common area suitable for co-working or collaborative workstations, five private offices, and a conference room. Additional features include a storage and utility area, an employee lounge or break area on the mezzanine level, and a central air conditioning system. The property includes eight parking spaces, with six covered spaces. Building features include controlled access, 24/7 security, two elevators, an intercom system, a full backup generator, and a water cistern. The Homeowner Association fee is $2,153.27 per month, covering security, water, common area maintenance, and maintenance of shared corridor restrooms. This office space is suitable for professional offices, corporate headquarters, or as an investment opportunity in one of San Juan’s business districts.
    Location Intelligence

    Current Use by Public Records

    Office Units

    Map

    City
    San Juan
    County
    San Juan
    State
    Longitude
    -66.086542
    Latitude
    18.453484

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    FAQs

    What type of property is this?
    Office units - Well-designed office space near Convention District with parking.
    Where is this office units located?
    The property is located at 644 FERNANDEZ JUNCOS San Juan.
    What is the lease rate?
    The lease rate is $6,500 /Mo.
    What are key features of this property?
    This property features: Prime location near the Convention District and Puerto Rico Convention Center, offering easy access to hotels, dining, and luxury condominiums.; Eight parking spaces, including six covered, a rare and valuable amenity.; Functional 2,385 SF space with a spacious reception area, open common area, five private offices, and a conference room.
    (787) 306-2298
    We can help!
    Listing Contact
    Martha Nasser Joya
    Real Estate License ID: 15323
    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.

    More about this property
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