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    Mchenry County, IL Office Properties & Spaces for Sale

    39 results
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    Professional Office Space Available
    $169,900
    1.15 Acres

    Professional Office Space Available

    1540 Carlemont Dr, Crystal Lake, IL 60014

    Well-maintained office in Randall North Business Center.

    • Prime location in the highly desirable Randall North Business Center with great visibility and illuminated signage.
    • Professionally designed 1170 sq ft office space with higher‑end quality finishes (built out in 2017).
    • Features 3 comfortable offices, large reception/waiting area, kitchenette, and bathroom.
    • New high‑efficiency central air unit installed in 2025.
    • Ample parking and well‑illuminated complex for safety and convenience.
    Updated: Jan 28
    View details
    High-Visibility Corner Commercial Property
    $169,900
    0.29 Acres

    High-Visibility Corner Commercial Property

    605 E Grant Hwy, Marengo, IL 60152

    Versatile commercial property with modern updates and high visibility.

    • High‑visibility corner location on IL RT 20, ideal for business.
    • Ample room for building expansion or additional parking.
    • Modern interior updates including new AC unit (2024) and vinyl flooring.
    • Large, open interior spaces with office‑sized rooms, grand rooms, and storage.
    • Existing concrete parking lot with access from side street and main frontage.
    Updated: Jan 25
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    Wonder Lake Commercial Opportunity
    $199,000
    0.55 Acres

    Wonder Lake Commercial Opportunity

    Two-story office building with potential for various uses.

    7165 Barnard Mill Rd, Wonder Lake, IL 60097
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    Professional Office Condo For Sale
    $160,000
    1.09 Acres

    Professional Office Condo For Sale

    Commercial office condo in Algonquin, currently leased through 3/31/2026.

    280 Stone Gate Rd, Algonquin, IL 60102
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    Leased Commercial Property Investment
    $655,000
    0.07 Acres

    Leased Commercial Property Investment

    Leased dentist office with NNN lease, ideal investment property.

    1500 Carlemont Dr, Crystal Lake, IL 60014
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    Corner Office/Retail Suite Available
    $400,000

    Corner Office/Retail Suite Available

    Highly visible corner office/retail suite in Crystal Lake, Illinois.

    1540 Carlemont Dr, Crystal Lake, IL 60014
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    Commercial Building Near Downtown Harvard
    $198,500
    0.06 Acres

    Commercial Building Near Downtown Harvard

    Commercial building near downtown Harvard, suitable for small business.

    400 N Division St, Harvard, IL 60033
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    Office/Retail Condo in Trinity Commons
    $127,000

    Office/Retail Condo in Trinity Commons

    Well-priced, fully built-out condo ideal for retail or office.

    9203 S Il Rte 31, Lake in the Hills, IL 60156
    View details
    Historic Algonquin Office Building For Sale
    $300,000
    0.16 Acres

    Historic Algonquin Office Building For Sale

    Two-unit commercial office building in Algonquin's historic district.

    329 Jefferson St, Algonquin, IL 60102
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    Prime Corner Location in McHenry
    $425,000
    0.20 Acres

    Prime Corner Location in McHenry

    Storefront, office, and garage space in a high-traffic area.

    3331 W Elm Rt 120 St, McHenry, IL 60050
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    Vintage Painted Lady in Algonquin
    $750,000
    0.20 Acres

    Vintage Painted Lady in Algonquin

    Historic 1893 building with versatile commercial space in downtown Algonquin.

    302 S Main St, Algonquin, IL 60102
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    Office/Retail Building on Route 14
    $149,900

    Office/Retail Building on Route 14

    1400 sq ft office/retail building on busy Route 14.

    181 S Northwest Hwy, Cary, IL 60013
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    Two-Story Multi-Tenant Office Building
    $999,900

    Two-Story Multi-Tenant Office Building

    Two-story office building with private offices available for lease.

    970 S Mchenry Ave, Crystal Lake, IL 60014
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    Corner Commercial Building with Garage
    $425,000

    Corner Commercial Building with Garage

    Commercial building with garage, multiple offices, and parking.

    3331 W Elm St, McHenry, IL 60050
    View details
    Cary Office Building Investment
    $1,799,000
    18,434 SF

    Cary Office Building Investment

    18,434 SF Office Building, 8.9% Cap Rate

    2615 3 Oaks Rd, Cary, IL 60013
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    1447 Merchant Dr, Algonquin, IL 60102
    $264,900
    1,860 SF

    1447 Merchant Dr, Algonquin, IL 60102

    Office Properties & Spaces • 1,860 SF

    1447 Merchant Dr, Algonquin, IL 60102
    View details
    Cary Office Building - Main Street Corner
    $740,000
    8,280 SF

    Cary Office Building - Main Street Corner

    High-visibility office building, ample parking, great location.

    10 Main St, Cary, IL 60013
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    Woodstock Office Building - 6 Suites
    $725,000
    6,677 SF

    Woodstock Office Building - 6 Suites

    Fully Leased, Historic Downtown Location

    131 Calhoun St, Woodstock, IL 60098
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    Woodstock Office Building - Prime Location
    $1,250,000
    6,525 SF

    Woodstock Office Building - Prime Location

    Spacious office building, updated amenities, ample parking.

    227 Judd St, Woodstock, IL 60098
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    McHenry Office Building - Great Value
    $2,300,000
    21,360 SF

    McHenry Office Building - Great Value

    Multi-tenant office building, ideal user/investor.

    3911-3929 Mercy Dr, McHenry, IL 60050
    View details
    Algonquin Medical Office Space For Lease
    $258,427
    1,339 SF

    Algonquin Medical Office Space For Lease

    Turn-key medical office, prime Algonquin location.

    1449 Merchant Dr, Algonquin, IL 60102
    View details
    Woodstock Executive Office Condo
    $195,000

    Woodstock Executive Office Condo

    Upscale 1,388 SF Office for Sale

    665 Calhoun St, Woodstock, IL 60098
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    Crystal Lake Office Building Investment
    $231,000
    1,320 SF

    Crystal Lake Office Building Investment

    1,320 SF Executive Office, 6.11% Cap Rate

    10 Virginia Rd, Crystal Lake, IL 60014
    View details
    1447 Merchant Drive - Algonquin
    $264,900
    1,860 SF

    1447 Merchant Drive - Algonquin

    Medical offices • 1,860 SF

    1447 Merchant Dr, Algonquin, IL 60102
    View details

    Mchenry County, IL Office Properties & Spaces Investment Opportunities Market Analysis

    Explore 115 office properties & spaces for sale in Mchenry County, IL, showcased through 39 active listings on our real estate platform. These investment opportunities span a total of 1,397,333 square feet of properties for sale, with an estimated market value of $18,196,025.

    Prices for office spaces in Mchenry County, IL start at $120,000, averaging $627,449, and reaching up to $4,000,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you have the most current data.

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