86,226

St. Clair County, MI Homes

Section Image Section Image
  • 1009 Illinois St, Marysville, MI 48040

    $280,000 Sold Mar 27, 2026

    1009 Illinois St, Marysville, MI 48040

    • 3 Beds
    • 3 Baths
    • 1,464 Sq Ft
    • Built 1974

    Last Sold Summary

    • 3% Below List Price
    • $191/SF
    • 33 Days On Market

    Current Estimated Value $284,135

    Last Listing Agent Mike Deising Epique Realty

    1009 Illinois St, Marysville, MI 48040
    • 9344 Gratiot Ave, Columbus, MI 48063

      Est $205,500 Not Listed For Sale

      9344 Gratiot Ave, Columbus, MI 48063

      9344 Gratiot Ave, Columbus, MI 48063

      Last Sold Summary

      • 79% Below List Price
      • 111 Days On Market
      • Last Sold Price $975,000
      • Oct 31, 2024

      Last Listing Agent Joan King Realty Executives

  • 10043 Dixie Hwy, Ira Township, MI 48023
    10043 Dixie Hwy, Ira Township, MI 48023
    10043 Dixie Hwy, Ira Township, MI 48023
    /52

    $1,250,000

    • 4 Beds
    • 4 Baths
    • 2,882 Sq Ft

    10043 Dixie Hwy, Ira Township, MI 48023

    Exquisite prime end-unit lakefront estate, custom-built and offering three levels of refined living. This signature residence stands apart in design, craftsmanship, and privacy, capturing breathtaking views of Anchor Bay while blending sophistication, comfort, and an unparalleled waterfront lifestyle. The main level centers around the reimagined kitchen, boasting quartz countertops, a designer

    Agent Photo

    Thomas Fincham

    Community Choice Realty Inc

    (586) 571-9261

    10043 Dixie Hwy, Ira Township, MI 48023
  • 261 N Mary St, Marine City, MI 48039
    261 N Mary St, Marine City, MI 48039
    261 N Mary St, Marine City, MI 48039
    /12

    $190,000 Sold Mar 20, 2026

    261 N Mary St, Marine City, MI 48039

    • 3 Beds
    • 3 Baths
    • 1,732 Sq Ft
    • Built 1940

    Last Sold Summary

    • 3% Above List Price
    • $110/SF
    • 29 Days On Market

    Current Estimated Value $187,384

    Last Listing Agent Justin Alex Cleare Realty Solutions

    261 N Mary St, Marine City, MI 48039
    • 9216 Field Rd, Clay, MI 48001

      Est $448,919 Not Listed For Sale

      9216 Field Rd, Clay, MI 48001

      • 3 Beds
      • 3 Baths
      • 3,753 Sq Ft
      • Built 2004
      9216 Field Rd, Clay, MI 48001

      Last Sold Summary

      • 9% Above List Price
      • $109/SF
      • 7 Days On Market
      • Last Sold Price $410,000
      • Aug 21, 2023

      Last Listing Agent Michelle Thom KW Platinum

  • 0 Busha Hwy Unit 50194246, Marysville, MI 48040
    0 Busha Hwy Unit 50194246, Marysville, MI 48040
    0 Busha Hwy Unit 50194246, Marysville, MI 48040
    /3

    $99,900

    • Land
    • 24,829 Sq Ft
    • $175,263 per Acre

    0 Busha Hwy Unit 50194246, Marysville, MI 48040

    Prime real estate with 200 feet of frontage on M-29/Busha Hwy in Marysville just south of Gratiot Ave. Average Annual Daily Traffic over 15,000 according to MDOT

    Agent Photo

    Trent Attebury

    J. A. Bachler Realtor

    (810) 674-8996

    0 Busha Hwy Unit 50194246, Marysville, MI 48040
  • 3443 Carrigan Rd, Fort Gratiot, MI 48059

    $250,000 Sold Mar 26, 2026

    3443 Carrigan Rd, Fort Gratiot, MI 48059

    • 4 Beds
    • 1 Bath
    • 1,658 Sq Ft
    • Built 1930

    Last Sold Summary

    • 19% Below List Price
    • $151/SF
    • 168 Days On Market

    Current Estimated Value $248,364

    Last Listing Agent Amy Tyson Real Estate Masters

    3443 Carrigan Rd, Fort Gratiot, MI 48059
    • 205 S Lester St, Capac, MI 48014

      Est $219,818 Not Listed For Sale

      205 S Lester St, Capac, MI 48014

      • 3 Beds
      • 2 Baths
      • 2,048 Sq Ft
      • Built 1972
      205 S Lester St, Capac, MI 48014

      Last Sold Summary

      • 13% Above List Price
      • $95/SF
      • 46 Days On Market
      • Last Sold Price $195,000
      • Mar 15, 2024

      Last Listing Agent Ashley Mardlin Realteam Real Estate

  • Vacant S Parker St, Marine City, MI 48039
    Vacant S Parker St, Marine City, MI 48039
    /2

    $197,850

    • Land
    • 13.19 Acres
    • $15,000 per Acre

    Vacant S Parker St, Marine City, MI 48039

    13.19 acre L-shaped parcel zoned Industrial with public water, sewer & natural gas available at the road. Class A road with average daily traffic over 6,000. Additonal 143.99 acre parcel available on north side, MLS # 50198240.

    Agent Photo

    Trent Attebury

    J. A. Bachler Realtor

    (810) 321-4611

    Vacant S Parker St, Marine City, MI 48039
  • Vacant Emerson Rd, Wales Township, MI 48027

    $225,000 Sold Sep 08, 2025

    Vacant Emerson Rd, Wales Township, MI 48027

    • Land
    • 32.55 Acres
    • $6,912 per Acre

    Last Sold Summary

    • 6% Below List Price
    • 63 Days On Market

    Last Listing Agent Jim Golembiewski KW Platinum

    Vacant Emerson Rd, Wales Township, MI 48027
    • 1975 Michigan Ave Unit 22, Marysville, MI 48040

      Est $133,995 Not Listed For Sale

      1975 Michigan Ave Unit 22, Marysville, MI 48040

      • 2 Beds
      • 1 Bath
      • 1,055 Sq Ft
      • Built 1976
      1975 Michigan Ave Unit 22, Marysville, MI 48040

      Last Sold Summary

      • 7% Above List Price
      • $118/SF
      • 21 Days On Market
      • Last Sold Price $125,000
      • Jun 07, 2023

      Last Listing Agent Carla Cann KW Platinum Port Huron

  • 4570 Atkins Rd, Clyde, MI 48049
    4570 Atkins Rd, Clyde, MI 48049
    4570 Atkins Rd, Clyde, MI 48049
    /32

    $475,000

    • 4 Beds
    • 4 Baths
    • 3,120 Sq Ft

    4570 Atkins Rd, Clyde, MI 48049

    Black River frontage to enjoy! This spacious 4 bedroom 2.5 bath home offers 2080 sq ft of comfortable living space and sits on nearly 5 acres. Inside, the home features a functional layout with plenty of natural light. The kitchen and living areas flow beautifully, making it easy to entertain or relax with family. The kitchen comes with all appliances and not only a living area, an extra

    Agent Photo

    Donna Hazlewood

    KW Platinum Port Huron

    (810) 246-4640

    4570 Atkins Rd, Clyde, MI 48049
  • 3230 Ashland Ct, Port Huron, MI 48060

    $215,000 Sold Dec 08, 2025

    3230 Ashland Ct, Port Huron, MI 48060

    • 3 Beds
    • 2 Baths
    • 1,661 Sq Ft
    • Built 2004

    Last Sold Summary

    • 8% Above List Price
    • $129/SF
    • 2 Days On Market

    Current Estimated Value $218,535

    Last Listing Agent Evan White KW Platinum

    3230 Ashland Ct, Port Huron, MI 48060
    • 10791 Brandon Rd, Emmett, MI 48022

      Est $182,654 Not Listed For Sale

      10791 Brandon Rd, Emmett, MI 48022

      • 3 Beds
      • 1 Bath
      • 1,128 Sq Ft
      • Built 1970
      10791 Brandon Rd, Emmett, MI 48022

      Last Sold Summary

      • 4% Above List Price
      • $155/SF
      • 54 Days On Market
      • Last Sold Price $175,000
      • Mar 19, 2024

      Last Listing Agent Brian Klein Realty Executives Home Towne Romeo

  • 7054 Middle Channel Dr, Harsens Island, MI 48028
    7054 Middle Channel Dr, Harsens Island, MI 48028
    7054 Middle Channel Dr, Harsens Island, MI 48028
    /36

    $459,900

    • 2 Beds
    • 1 Bath
    • 1,020 Sq Ft

    7054 Middle Channel Dr, Harsens Island, MI 48028

    Experience premier waterfront living on the highly sought-after Middle Channel of Lake St. Clair. This fully updated, move-in-ready ranch offers 50 feet of direct water frontage, a steel seawall, and unobstructed panoramic views with stunning sunrises and sunsets. Inside, enjoy a bright open-concept layout with updated finishes, a spacious living area, and a beautiful dining and bar space with

    Agent Photo

    Laura Janski

    RE/MAX Advisors

    (810) 672-1264

    7054 Middle Channel Dr, Harsens Island, MI 48028
  • 612 S 9th St, Saint Clair, MI 48079

    $211,000 Sold May 30, 2025

    612 S 9th St, Saint Clair, MI 48079

    • 3 Beds
    • 1 Bath
    • 1,100 Sq Ft
    • Built 1974

    Last Sold Summary

    • 1% Below List Price
    • $192/SF
    • 7 Days On Market

    Current Estimated Value $211,747

    Last Listing Agent Mark Ellis Real Estate One Port Huron

    612 S 9th St, Saint Clair, MI 48079
    • 306 W Mill St, Capac, MI 48014

      Est $163,981 Not Listed For Sale

      306 W Mill St, Capac, MI 48014

      • 3 Beds
      • 1 Bath
      • 1,288 Sq Ft
      • Built 1906
      306 W Mill St, Capac, MI 48014

      Last Sold Summary

      • 22% Above List Price
      • $104/SF
      • 28 Days On Market
      • Last Sold Price $134,000
      • Oct 31, 2024

      Last Listing Agent Shawn Modzelewski Nelson Property Management

  • 0002 Vincent Rd, North Street, MI 48049
    0002 Vincent Rd, North Street, MI 48049
    /2

    $47,900

    • Land
    • 2.5 Acres
    • $19,160 per Acre

    0002 Vincent Rd, North Street, MI 48049

    One of four 2.5-acre building sites at the northeast corner of Vincent Rd. (paved) and Maitland Rd. (gravel road). An easy/quick drive to shopping, schools, houses of worship, expressways and entertainment venues. Great opportunity to build your dream home with a long back deck to enjoy the sunrise with a fresh cup of coffee or the sunset with a glass of wine from your new front porch on one

    Agent Photo

    Jeffrey Wine

    Berkshire Hathaway HomeServices Kee Realty Ft Gra

    (810) 688-6411

    0002 Vincent Rd, North Street, MI 48049
  • 2916 Woodstock Cir, Port Huron, MI 48060

    $805,000 Sold Sep 15, 2025

    2916 Woodstock Cir, Port Huron, MI 48060

    • 5 Beds
    • 3.5 Baths
    • 4,800 Sq Ft
    • Built 1998

    Last Sold Summary

    • 1% Above List Price
    • $168/SF
    • 7 Days On Market

    Current Estimated Value $824,328

    Last Listing Agent Rhonda Bessette Realty Executives Home Towne

    2916 Woodstock Cir, Port Huron, MI 48060
    • 304 W Mill St, Capac, MI 48014

      Est $209,364 Not Listed For Sale

      304 W Mill St, Capac, MI 48014

      • 3 Beds
      • 2 Baths
      • 1,537 Sq Ft
      • Built 1917
      304 W Mill St, Capac, MI 48014

      Last Sold Summary

      • 5% Above List Price
      • $130/SF
      • 19 Days On Market
      • Last Sold Price $200,000
      • Apr 02, 2025

      Last Listing Agent James Megalizzi Deed Realtors

  • 0 Chartier Unit 50171381, Marine City, MI 48039
    0 Chartier Unit 50171381, Marine City, MI 48039
    0 Chartier Unit 50171381, Marine City, MI 48039
    /3

    $26,500

    • Land
    • 6,534 Sq Ft
    • $176,667 per Acre

    0 Chartier Unit 50171381, Marine City, MI 48039

    Great lot in the heart of Marine City waiting for you to build your new home! Lot is 50 x 131. Close to downtown Marine City. Take a look today!

    Agent Photo

    Kelly Sadowski

    Sine & Monaghan Realtors LLC St Clair

    (810) 510-3583

    0 Chartier Unit 50171381, Marine City, MI 48039
  • 9512 Pearl Beach Blvd, Clay, MI 48001

    $282,000 Sold Nov 25, 2025

    9512 Pearl Beach Blvd, Clay, MI 48001

    • 3 Beds
    • 1.5 Baths
    • 1,696 Sq Ft
    • Built 1940

    Last Sold Summary

    • 4% Above List Price
    • $166/SF
    • 80 Days On Market

    Current Estimated Value $301,558

    Last Listing Agent Jennifer Swack Key Realty - Monroe

    9512 Pearl Beach Blvd, Clay, MI 48001
    • 108 S Main St, Capac, MI 48014
      108 S Main St, Capac, MI 48014
      /2

      Est $178,315 Not Listed For Sale

      108 S Main St, Capac, MI 48014

      • 7 Beds
      • 4 Baths
      • 6,940 Sq Ft
      • Built 1890
      108 S Main St, Capac, MI 48014

      Last Sold Summary

      • 70% Below List Price
      • $15/SF
      • Last Sold Price $105,000

      Last Listing Agent Richard Michaels Berkshire Hathaway HomeServices Kee Realty Wash

  • 3136 Military St, Port Huron, MI 48060
    3136 Military St, Port Huron, MI 48060
    3136 Military St, Port Huron, MI 48060
    /17

    $2,500,000

    • Land
    • 1.01 Acres
    • $2,475,248 per Acre

    3136 Military St, Port Huron, MI 48060

    Unique mixed waterfront family owned restaurant. Site offers 8 boat wells, 4 boat hoists, 8 slips. 3 residential rental units on site. This is an established fine dining restaurant / bar overlooking the beautiful St. Clair river. Three levels of dinning with water access. Outside decks upper and lower. New kitchen equipment. Currently plenty of parking on water or land. Zoned C-1 Call for more

    Agent Photo

    Jeffrey Hedberg

    Real Estate Masters

    (810) 692-1515

    3136 Military St, Port Huron, MI 48060
  • 830 Crystal Ln Unit 34, Marysville, MI 48040

    $292,000 Sold Mar 02, 2026

    830 Crystal Ln Unit 34, Marysville, MI 48040

    • 3 Beds
    • 3 Baths
    • 1,360 Sq Ft
    • Built 1998

    Last Sold Summary

    • 13% Below List Price
    • $215/SF
    • 191 Days On Market

    Current Estimated Value $298,685

    Last Listing Agent Michael Basey O'Connor Realty, Inc

    830 Crystal Ln Unit 34, Marysville, MI 48040
    • 307 W Mill St, Capac, MI 48014

      Est $205,998 Not Listed For Sale

      307 W Mill St, Capac, MI 48014

      • 3 Beds
      • 1.5 Baths
      • 1,350 Sq Ft
      • Built 1918
      307 W Mill St, Capac, MI 48014

      Last Sold Summary

      • 6% Above List Price
      • $144/SF
      • 32 Days On Market
      • Last Sold Price $195,000
      • Nov 11, 2024

      Last Listing Agent Joan King Realty Executives

  • 165 S Water St Unit 103, Marine City, MI 48039
    165 S Water St Unit 103, Marine City, MI 48039
    165 S Water St Unit 103, Marine City, MI 48039
    /39

    $234,750

    • 2 Beds
    • 1.5 Baths
    • 1,008 Sq Ft

    165 S Water St Unit 103, Marine City, MI 48039

    OPEN SUN MAY 3 from 1 - 2 PM. See ships pass by your sun room window! Beautiful Newport Manor Condo on the St. Clair River in Downtown Marine City. 1st floor unit is nicely updated including a new kitchen, walk-in tile shower, spacious open floor plan. Home and walking distance to the Riverbank Theatre, The Sweet Tooth Candy store and many vintage shops. This 2 bedroom, 1.5 bath condo on the

    Agent Photo

    Wynne Achatz

    Real Estate One Westrick-Marine City

    (810) 216-5524

    165 S Water St Unit 103, Marine City, MI 48039
  • 7566 Marine City Hwy, Casco, MI 48064

    $380,000 Sold Sep 19, 2025

    7566 Marine City Hwy, Casco, MI 48064

    • 4 Beds
    • 2.5 Baths
    • 2,745 Sq Ft
    • Built 1963

    Last Sold Summary

    • 5% Below List Price
    • $138/SF
    • 36 Days On Market

    Current Estimated Value $385,233

    Last Listing Agent Michelle Thom KW Platinum

    7566 Marine City Hwy, Casco, MI 48064
    • 106 E Church St, Capac, MI 48014

      Est $242,626 Not Listed For Sale

      106 E Church St, Capac, MI 48014

      • 5 Beds
      • 1.5 Baths
      • 1,700 Sq Ft
      • Built 1925
      106 E Church St, Capac, MI 48014

      Last Sold Summary

      • 3% Above List Price
      • $138/SF
      • 13 Days On Market
      • Last Sold Price $235,000
      • Mar 29, 2024

      Last Listing Agent Michelle Schroeder Realty Executives Home Towne Romeo

  • 10635 Gratiot Ave, Casco, MI 48064
    10635 Gratiot Ave, Casco, MI 48064
    10635 Gratiot Ave, Casco, MI 48064
    /19

    $364,000

    • 3 Beds
    • 2 Baths
    • 1,344 Sq Ft

    10635 Gratiot Ave, Casco, MI 48064

    Unique opportunity on Gratiot Avenue’s M-3 commercial corridor with B-2 zoning and permitted uses, offering flexibility for a variety of commercial or mixed-use possibilities. The property features a 1,300 sq ft ranch-style residence built in 1974, situated on approximately 0.90 acres. The home is set well back from the road, creating additional separation from the corridor while still benefiting

    Agent Photo

    Frank Ulicny

    Realty Executives Home Towne Chesterfield

    (586) 331-0906

    10635 Gratiot Ave, Casco, MI 48064
  • 271 N Elizabeth St, Marine City, MI 48039

    $200,000 Sold Sep 15, 2025

    271 N Elizabeth St, Marine City, MI 48039

    • 2 Beds
    • 2 Baths
    • 1,436 Sq Ft
    • Built 1900

    Last Sold Summary

    • 4% Below List Price
    • $139/SF
    • 9 Days On Market

    Current Estimated Value $204,087

    Last Listing Agent Angelique Fowler Redfin Corporation

    271 N Elizabeth St, Marine City, MI 48039
    • 242 Quail Dr, Capac, MI 48014

      Est $204,404 Not Listed For Sale

      242 Quail Dr, Capac, MI 48014

      • 2 Beds
      • 2 Baths
      • 1,150 Sq Ft
      • Built 1999
      242 Quail Dr, Capac, MI 48014

      Last Sold Summary

      • 5% Above List Price
      • $170/SF
      • 15 Days On Market
      • Last Sold Price $195,000
      • Oct 29, 2024

      Last Listing Agent Lindsay Blanton Town & Country Realty-Lexington

  • 5317 Bart Dr, Casco, MI 48064
    5317 Bart Dr, Casco, MI 48064
    5317 Bart Dr, Casco, MI 48064
    /15

    $49,900

    • 3 Beds
    • 2 Baths
    • 1,456 Sq Ft

    5317 Bart Dr, Casco, MI 48064

    Welcome home to this nice manufactured home located in the Ravinia Anchor Bay community. Enjoy outdoor living on the large deck, perfect for relaxing or entertaining. Inside, the home offers a spacious living room and a formal dining room, creating a comfortable and functional layout. The kitchen is generously sized with stainless steel appliances, ample cabinets, and plenty of counterspace,

    Agent Photo

    Mike Procissi

    Power House Group Realty

    (586) 619-8982

    5317 Bart Dr, Casco, MI 48064
  • 3759 Grant Ave, Fort Gratiot, MI 48059

    $245,000 Sold Jul 25, 2025

    3759 Grant Ave, Fort Gratiot, MI 48059

    • 3 Beds
    • 2 Baths
    • 1,520 Sq Ft
    • Built 1971

    Last Sold Summary

    • 7% Above List Price
    • $161/SF
    • 2 Days On Market

    Current Estimated Value $252,347

    Last Listing Agent Dan Palmateer Berkshire Hathaway HomeServices Kee Realty Ft Gra

    3759 Grant Ave, Fort Gratiot, MI 48059
    • 222 Quail Dr, Capac, MI 48014

      Est $204,876 Not Listed For Sale

      222 Quail Dr, Capac, MI 48014

      • 2 Beds
      • 2 Baths
      • 1,156 Sq Ft
      • Built 1999
      222 Quail Dr, Capac, MI 48014

      Last Sold Summary

      • 5% Above List Price
      • $169/SF
      • 12 Days On Market
      • Last Sold Price $195,000
      • Oct 08, 2024

      Last Listing Agent Rita Vermeersch Berkshire Hathaway HomeServices Kee Realty

  • vacant S Marine City Unit Vacant 26-mile road, Cottrellville, MI 48039
    vacant S Marine City Unit Vacant 26-mile road, Cottrellville, MI 48039
    vacant S Marine City Unit Vacant 26-mile road, Cottrellville, MI 48039
    /3

    $343,760

    • Land
    • 42.97 Acres
    • $8,000 per Acre

    vacant S Marine City Unit Vacant 26-mile road, Cottrellville, MI 48039

    New survey describes this 42.97 acre parcel, recently split from a 63 acre parcel. Located on the visible Marine Highway Corridor.. (26- mile road) well and septic to be determined within the township regulations.. Tax to be determined

    Agent Photo

    Trent Attebury

    J. A. Bachler Realtor

    (810) 442-4927

    vacant S Marine City Unit Vacant 26-mile road, Cottrellville, MI 48039
  • 583 Market St, Algonac, MI 48001

    $275,000 Sold Oct 01, 2025

    583 Market St, Algonac, MI 48001

    • 3 Beds
    • 2 Baths
    • 1,940 Sq Ft
    • Built 1976

    Last Sold Summary

    • 2% Above List Price
    • $142/SF
    • 30 Days On Market

    Current Estimated Value $284,658

    Last Listing Agent Joe Cracchiolo Keller Williams Paint Creek

    583 Market St, Algonac, MI 48001
    • 287 Deer Park S, Capac, MI 48014

      Est $331,685 Not Listed For Sale

      287 Deer Park S, Capac, MI 48014

      • 4 Beds
      • 2 Baths
      • 2,813 Sq Ft
      • Built 2003
      287 Deer Park S, Capac, MI 48014

      Last Sold Summary

      • 11% Above List Price
      • $107/SF
      • 5 Days On Market
      • Last Sold Price $300,000
      • Oct 26, 2023

      Last Listing Agent Daniel Lovell Ironstone Realty

  • 814 Saint James St, Marysville, MI 48040
    814 Saint James St, Marysville, MI 48040
    814 Saint James St, Marysville, MI 48040
    /16

    $209,000

    • 3 Beds
    • 1 Bath
    • 1,326 Sq Ft

    814 Saint James St, Marysville, MI 48040

    Adorable 3 bedroom, 1 bath ranch, with a 1 car attached garage. Located in a safe, quiet, and friendly community. Marysville in known for its strong school systems. Don't pass this one up!!BATVAI

    Agent Photo

    Kim Richards

    Lakeport Real Estate Services LLC

    (810) 642-3162

    814 Saint James St, Marysville, MI 48040
  • 3752 Grant Ave, Fort Gratiot, MI 48059

    $250,000 Sold Jul 24, 2025

    3752 Grant Ave, Fort Gratiot, MI 48059

    • 4 Beds
    • 3 Baths
    • 2,050 Sq Ft
    • Built 1964

    Last Sold Summary

    • 4% Above List Price
    • $122/SF
    • 1 Day On Market

    Current Estimated Value $265,217

    Last Listing Agent Dan Palmateer Berkshire Hathaway HomeServices Kee Realty Ft Gra

    3752 Grant Ave, Fort Gratiot, MI 48059

Showing Results 201 - 240, Page 6 of 18

Michigan St. Clair County

Real Estate & Homes

How to Buy a Home How to Finance a Home How to Sell a Home

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

Homes.com Licensing Information

§ 442-H New York Standard Operating Procedures

New York Fair Housing Notice

TREC: Information about brokerage services, Consumer protection notice

California DRE #01937601

Contact Homes.com Brokerage

Copyright © 2026 CoStar Group