Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Redevelopment Office Building Site Title is generated by Realmo AI

    343 S THIRD ST, Coopersburg, PA 18036

    View on Map
    Claim this Listing
    New
    For Sale
    Contact for pricing

    Commercially zoned site with a 1,730-square-foot office structure and strong Route 309 daily vehicle traffic.

    Type:Office, Industrial
    Property size:
    1,726 SF
    Lot size:
    2.40 Acres
    Price / SF:
    $492/SF
    Added:
    Jun 2, 2026
    Days on Market:
    5
    Last Refresh:
    Jun 6 at 4:39 am

    Property Features for 343 S THIRD ST

    General Information

    Standard status
    Active
    Size
    1,726 SF
    Lot size
    2.40 Acres
    Property subtype
    Office, Industrial

    Building Details

    Year Built
    1880

    We can help!

    Listing Contact
    James Balliet
    James Balliet

    Listing agent James Balliet License #PA RS227612L

    Listing office The James Balliet Property Group

    Listing date Jun 2, 2026

    Source Crexi

    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 The James Balliet Property Group

    HighLights

    • 2.4‑acre commercial‑zoned site along Route 309 with 1,730 SF office structure
    • Over 30,000 daily vehicle traffic on Route 309 (per listing remarks)
    • Previously occupied by professional counseling offices
    • Year built: 1880
    • Zoned Commercial with most general commercial uses permitted by right
    • Offers potential for commercial, professional, or redevelopment uses

    Overview

    The property consists of a 2.4-acre commercial site that includes a 1,730-square-foot structure. The building previously operated as professional counseling offices, offering an existing footprint for continued professional use or redevelopment planning. The overall site size supports flexibility for a range of commercial, professional, or other redevelopment concepts, subject to applicable approvals.

    Located along Route 309, the property is positioned for high daily drive-by visibility, with public remarks citing over 30,000 vehicles per day. The site’s exposure and roadside accessibility are key considerations for businesses seeking convenient customer approach and clear presence from the roadway.

    Zoned Commercial, with most general commercial uses permitted by right, the property may fit buyers and tenants looking for a straightforward path to appropriate commercial activity. Prospective users can evaluate whether the existing counseling-office layout suits their needs, or whether a redevelopment strategy better aligns with their intended concept. For brokers and developers, the combination of roadway exposure, an on-site structure, and commercially permissive zoning makes this an attractive option for projects that can work within the permitted-by-right framework.
    Location Intelligence

    Current Use by Public Records

    Keystone Counseling Services Physician William J. Kelly, ... Physician Schantzenbach Wayne R Medical Clinic Kotch Michael R Physician Stephen Bliven Foster Care Service

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Coopersburg
    County
    Lehigh
    State
    Pennsylvania
    Longitude
    -75.3861556
    Latitude
    40.5057461

    Nearby Similar for Sale

    • $849,500
      1,726 SF

      Redevelopment Office-Use Building

      Former counseling-office structure on Route 309 with strong daily traffic exposure and zoning that supports general commercial use.
      343 S 3rd Street, Coopersburg Boro, PA 18036
      View Details
    • $589,400

      Spacious Land in Coopersburg, PA

      4.03 acre lot in Southern Lehigh with distant views.
      6596 CHESTNUT HILL CHURCH ROAD, COOPERSBURG, PA 18036
      View Details
    • $589,400

      Land in Coopersburg Boro, PA

      4.031 acre lot for custom estate masterpiece.
      6596 Chestnut Hill Church Road, Coopersburg Boro, PA 18036
      View Details
    • Contact for pricing
      19,730 SF

      Coopersburg Office and Retail Building

      Single-story office and retail building in Coopersburg's Town Center.
      25 N Main St, Coopersburg, PA 18036
      View Details
    • Contact for pricing
      54,488 SF

      Warehouse/Manufacturing/Light Industrial Space Available

      Warehouse/Manufacturing/Light Industrial space available for sale or lease.
      7483 S Main St, Coopersburg, PA 18036
      View Details
    • $399,900

      Southern Lehigh 7.47-Acre Lot

      7.47-acre lot in Southern Lehigh with tax benefits.
      5871 Applebutter Hill, Upper Saucon Twp, PA 18036
      View Details
    • $589,400

      Land for Sale

      Land available in Coopersburg, PA.
      6596 Chestnut Hill Church Rd, Coopersburg, PA 18036
      View Details
    • $250,000

      Land in Upper Saucon Township

      Three lots totaling 1.12 acres in Upper Saucon Township.
      Glen Road, Upper Saucon Twp, PA 18036
      View Details
    • $1,200,000

      Two-Unit Retail/Office Space For Sale

      Two-unit retail/office space with parking lot available for sale.
      1585 ROUTE 309, COOPERSBURG, PA 18036
      View Details
    • $249,900

      Wooded Lot in Southern Lehigh

      Serene 5.8-acre wooded lot for custom home in Upper Saucon.
      5869 Applebutter Hill Road, Upper Saucon Twp, PA 18036
      View Details

    FAQs

    What type of property is this?
    Office building - Commercially zoned site with a 1,730-square-foot office structure and strong Route 309 daily vehicle traffic.
    Where is this office building located?
    The property is located at 343 S THIRD ST Coopersburg, PA.
    What is the asking price?
    The asking price for this property is $849,500.
    What are key features of this property?
    This property features: 2.4‑acre commercial‑zoned site along Route 309 with 1,730 SF office structure; Over 30,000 daily vehicle traffic on Route 309 (per listing remarks); Previously occupied by professional counseling offices
    (610) 435-1800 Call to check price and availability
    We can help!
    Contact for Pricing
    Please call us for current price
    and status of this listing James Balliet
    James Balliet
    Real Estate License ID: PA RS227612L
    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
    343 S THIRD ST, COOPERSBURG, PA
    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!