383

Recently Sold Gibson County IN Homes

Section Image
  • 611 S Cathy Dr, Princeton, IN 47670
    611 S Cathy Dr, Princeton, IN 47670
    611 S Cathy Dr, Princeton, IN 47670
    /22

    $275,000 Sold Jul 21, 2025

    611 S Cathy Dr, Princeton, IN 47670

    • 3 Beds
    • 2 Baths
    • 1,612 Sq Ft
    • Built 2021

    Last Sold Summary

    • 6% Below List Price
    • $171/SF
    • 22 Days On Market

    Current Estimated Value $284,582

    Last Listing Agent Mindy Word F.C. TUCKER EMGE

    611 S Cathy Dr, Princeton, IN 47670
  • 102 S West St, Haubstadt, IN 47639
    102 S West St, Haubstadt, IN 47639
    /2

    $125,000 Sold Dec 19, 2025

    102 S West St, Haubstadt, IN 47639

    • 4 Beds
    • 1.5 Baths
    • 2,076 Sq Ft
    • Built 1920

    Last Sold Summary

    • $60/SF
    • 28 Days On Market

    Last Listing Agent Jay Foster RE/MAX REVOLUTION

    102 S West St, Haubstadt, IN 47639
  • 302 E Vine St, Fort Branch, IN 47648
    302 E Vine St, Fort Branch, IN 47648
    302 E Vine St, Fort Branch, IN 47648
    /36

    $198,500 Sold Oct 22, 2025

    302 E Vine St, Fort Branch, IN 47648

    • 3 Beds
    • 1.5 Baths
    • 2,065 Sq Ft
    • Built 1950

    Last Sold Summary

    • 1% Above List Price
    • $96/SF
    • 15 Days On Market

    Current Estimated Value $192,406

    Last Listing Agent Andrea White RE/MAX REVOLUTION

    302 E Vine St, Fort Branch, IN 47648
  • 706 W Chestnut St, Francisco, IN 47649
    706 W Chestnut St, Francisco, IN 47649
    706 W Chestnut St, Francisco, IN 47649
    /31

    $55,000 Sold May 08, 2025

    706 W Chestnut St, Francisco, IN 47649

    • 3 Beds
    • 1 Bath
    • 1,047 Sq Ft
    • Built 1980

    Last Sold Summary

    • 31% Below List Price
    • $53/SF
    • 47 Days On Market

    Current Estimated Value $109,620

    Last Listing Agent Trae Dauby Dauby Real Estate

    706 W Chestnut St, Francisco, IN 47649
  • 722 S Race St, Princeton, IN 47670
    722 S Race St, Princeton, IN 47670
    722 S Race St, Princeton, IN 47670
    /9

    $32,000 Sold Feb 13, 2025

    722 S Race St, Princeton, IN 47670

    • 1 Bed
    • 1 Bath
    • 832 Sq Ft
    • Built 1897

    Last Sold Summary

    • 11% Below List Price
    • $38/SF
    • 2 Days On Market

    Current Estimated Value $35,329

    Last Listing Agent Josh Meeks MEEKS REALTY

    722 S Race St, Princeton, IN 47670
  • 827 S Stormont St, Princeton, IN 47670
    827 S Stormont St, Princeton, IN 47670
    /2

    $51,500 Sold Nov 26, 2025

    827 S Stormont St, Princeton, IN 47670

    • 4 Beds
    • 1 Bath
    • 1,600 Sq Ft
    • Built 1897

    Last Sold Summary

    • 14% Below List Price
    • $32/SF
    • 0 Days On Market

    Last Listing Agent Andrea White RE/MAX REVOLUTION

    827 S Stormont St, Princeton, IN 47670
  • 505 Harding Ave, Princeton, IN 47670
    505 Harding Ave, Princeton, IN 47670
    505 Harding Ave, Princeton, IN 47670
    /15

    $249,000 Sold Aug 29, 2025

    505 Harding Ave, Princeton, IN 47670

    • 3 Beds
    • 2 Baths
    • 2,256 Sq Ft
    • Built 1965

    Last Sold Summary

    • $110/SF
    • 0 Days On Market

    Current Estimated Value $251,629

    Last Listing Agent Brian Ellis F.C. TUCKER EMGE

    505 Harding Ave, Princeton, IN 47670
  • 501 E Ulen St, Fort Branch, IN 47648
    501 E Ulen St, Fort Branch, IN 47648
    501 E Ulen St, Fort Branch, IN 47648
    /14

    $220,250 Sold Jul 21, 2025

    501 E Ulen St, Fort Branch, IN 47648

    • 4 Beds
    • 1.5 Baths
    • 2,479 Sq Ft
    • Built 1961

    Last Sold Summary

    • 6% Above List Price
    • $89/SF
    • 17 Days On Market

    Current Estimated Value $223,793

    Last Listing Agent Ray Stallings DHI Realty Inc

    501 E Ulen St, Fort Branch, IN 47648
  • 117 N 3rd Ave, Oakland City, IN 47660
    117 N 3rd Ave, Oakland City, IN 47660
    117 N 3rd Ave, Oakland City, IN 47660
    /12

    $103,400 Sold Sep 12, 2025

    117 N 3rd Ave, Oakland City, IN 47660

    • 2 Beds
    • 1 Bath
    • 964 Sq Ft
    • Built 1940

    Last Sold Summary

    • 4% Above List Price
    • $107/SF
    • 41 Days On Market

    Current Estimated Value $106,114

    Last Listing Agent William Atkins Atkins Real Estate

    117 N 3rd Ave, Oakland City, IN 47660
  • 504 E Clark St, Owensville, IN 47665
    504 E Clark St, Owensville, IN 47665
    504 E Clark St, Owensville, IN 47665
    /27

    $185,600 Sold Jun 12, 2025

    504 E Clark St, Owensville, IN 47665

    • 3 Beds
    • 1 Bath
    • 1,245 Sq Ft
    • Built 1950

    Last Sold Summary

    • 2% Below List Price
    • $149/SF
    • 14 Days On Market

    Current Estimated Value $186,560

    Last Listing Agent Evan Birch eXp Realty, LLC

    504 E Clark St, Owensville, IN 47665
  • 50 S Us Hwy 41 Unit 16, Princeton, IN 47670
    50 S Us Hwy 41 Unit 16, Princeton, IN 47670
    50 S Us Hwy 41 Unit 16, Princeton, IN 47670
    /7

    $65,000 Sold Feb 27, 2025

    50 S Us Hwy 41 Unit 16, Princeton, IN 47670

    • Land
    • 1.45 Acres
    • $44,828 per Acre

    Last Sold Summary

    • 35% Below List Price
    • 751 Days On Market

    Last Listing Agent Anita Waldroup F.C. TUCKER EMGE

    50 S Us Hwy 41 Unit 16, Princeton, IN 47670
  • 503 S Lincoln St, Fort Branch, IN 47648
    503 S Lincoln St, Fort Branch, IN 47648
    503 S Lincoln St, Fort Branch, IN 47648
    /32

    $265,000 Sold May 07, 2025

    503 S Lincoln St, Fort Branch, IN 47648

    • 3 Beds
    • 2 Baths
    • 1,520 Sq Ft
    • Built 1946

    Last Sold Summary

    • 4% Above List Price
    • $174/SF
    • 0 Days On Market

    Current Estimated Value $258,673

    Last Listing Agent Aaron Luttrull Schuler Bauer Real Estate

    503 S Lincoln St, Fort Branch, IN 47648
  • 517 N Gibson St, Princeton, IN 47670
    517 N Gibson St, Princeton, IN 47670
    517 N Gibson St, Princeton, IN 47670
    /3

    $40,000 Sold Aug 07, 2025

    517 N Gibson St, Princeton, IN 47670

    • 2 Beds
    • 2 Baths
    • 1,290 Sq Ft
    • Built 1910

    Last Sold Summary

    • 47% Below List Price
    • $31/SF
    • 84 Days On Market

    Current Estimated Value $109,735

    Last Listing Agent Brandy Abel RE/MAX REVOLUTION

    517 N Gibson St, Princeton, IN 47670
  • 104 E Vine St, Fort Branch, IN 47648
    104 E Vine St, Fort Branch, IN 47648
    104 E Vine St, Fort Branch, IN 47648
    /35

    $154,900 Sold Nov 20, 2025

    104 E Vine St, Fort Branch, IN 47648

    • 3 Beds
    • 1.5 Baths
    • 1,190 Sq Ft
    • Built 1907

    Last Sold Summary

    • $130/SF
    • 3 Days On Market

    Last Listing Agent Andrea White RE/MAX REVOLUTION

    104 E Vine St, Fort Branch, IN 47648
  • 9603 W 575 S, Owensville, IN 47665
    9603 W 575 S, Owensville, IN 47665
    9603 W 575 S, Owensville, IN 47665
    /29

    $386,500 Sold Jan 27, 2026

    9603 W 575 S, Owensville, IN 47665

    • 5 Beds
    • 3 Baths
    • 3,016 Sq Ft
    • Built 2007

    Last Sold Summary

    • 3% Below List Price
    • $128/SF
    • 3 Days On Market

    Last Listing Agent Brian Ellis F.C. TUCKER EMGE

    9603 W 575 S, Owensville, IN 47665
  • 1336 E 400 N, Patoka, IN 47666
    1336 E 400 N, Patoka, IN 47666
    /2

    $425,000 Sold May 09, 2025

    1336 E 400 N, Patoka, IN 47666

    • 5 Beds
    • 3 Baths
    • 3,256 Sq Ft
    • Built 1997

    Last Sold Summary

    • $131/SF
    • 3 Days On Market

    Current Estimated Value $411,517

    Last Listing Agent Sue Beloat RE/MAX REVOLUTION

    1336 E 400 N, Patoka, IN 47666
  • 0 W 500 S Unit 202538319, Owensville, IN 47665
    0 W 500 S Unit 202538319, Owensville, IN 47665
    0 W 500 S Unit 202538319, Owensville, IN 47665
    /24

    $230,000 Sold Oct 24, 2025

    0 W 500 S Unit 202538319, Owensville, IN 47665

    • Land
    • 69.05 Acres
    • $3,331 per Acre

    Last Sold Summary

    • 7 Days On Market

    Last Listing Agent Jim Keck Berkshire Hathaway HomeServices Indiana Realty

    0 W 500 S Unit 202538319, Owensville, IN 47665
  • 610 N Hart St, Princeton, IN 47670
    610 N Hart St, Princeton, IN 47670
    610 N Hart St, Princeton, IN 47670
    /36

    $143,000 Sold Mar 31, 2025

    610 N Hart St, Princeton, IN 47670

    • 2 Beds
    • 2 Baths
    • 1,827 Sq Ft
    • Built 1900

    Last Sold Summary

    • 5% Below List Price
    • $78/SF
    • 134 Days On Market

    Current Estimated Value $164,271

    Last Listing Agent Harold Swift ERA FIRST ADVANTAGE REALTY, INC

    610 N Hart St, Princeton, IN 47670
  • 827 S Dogwood Ln, Princeton, IN 47670
    827 S Dogwood Ln, Princeton, IN 47670
    827 S Dogwood Ln, Princeton, IN 47670
    /20

    $295,000 Sold May 09, 2025

    827 S Dogwood Ln, Princeton, IN 47670

    • 4 Beds
    • 2 Baths
    • 1,625 Sq Ft
    • Built 1991

    Last Sold Summary

    • 2% Below List Price
    • $182/SF
    • 18 Days On Market

    Current Estimated Value $301,169

    Last Listing Agent Sue Beloat RE/MAX REVOLUTION

    827 S Dogwood Ln, Princeton, IN 47670
  • 122 S 1225 E Rd, Oakland City, IN 47660
    122 S 1225 E Rd, Oakland City, IN 47660
    122 S 1225 E Rd, Oakland City, IN 47660
    /19

    $265,000 Sold Feb 02, 2026

    122 S 1225 E Rd, Oakland City, IN 47660

    • 3 Beds
    • 2 Baths
    • 1,704 Sq Ft
    • Built 1980

    Last Sold Summary

    • 5% Below List Price
    • $156/SF
    • 35 Days On Market

    Last Listing Agent Bob Meeks MEEKS REALTY

    122 S 1225 E Rd, Oakland City, IN 47660
  • 403 N West St, Fort Branch, IN 47648
    403 N West St, Fort Branch, IN 47648
    403 N West St, Fort Branch, IN 47648
    /22

    $162,000 Sold Jan 15, 2026

    403 N West St, Fort Branch, IN 47648

    • 3 Beds
    • 2 Baths
    • 1,412 Sq Ft
    • Built 1983

    Last Sold Summary

    • 2% Below List Price
    • $115/SF
    • 26 Days On Market

    Last Listing Agent Andrea White RE/MAX REVOLUTION

    403 N West St, Fort Branch, IN 47648
  • 426 N Lincoln Ave, Oakland City, IN 47660
    426 N Lincoln Ave, Oakland City, IN 47660
    426 N Lincoln Ave, Oakland City, IN 47660
    /30

    $169,000 Sold Oct 03, 2025

    426 N Lincoln Ave, Oakland City, IN 47660

    • 3 Beds
    • 2 Baths
    • 1,200 Sq Ft
    • Built 2025

    Last Sold Summary

    • $141/SF
    • 26 Days On Market

    Current Estimated Value $141,751

    Last Listing Agent Kari Schaefer Key Associates Signature Realty

    426 N Lincoln Ave, Oakland City, IN 47660
  • 1007 S Main St, Fort Branch, IN 47648
    1007 S Main St, Fort Branch, IN 47648
    1007 S Main St, Fort Branch, IN 47648
    /26

    $175,000 Sold Jun 26, 2025

    1007 S Main St, Fort Branch, IN 47648

    • 3 Beds
    • 1 Bath
    • 1,296 Sq Ft
    • Built 1954

    Last Sold Summary

    • 6% Above List Price
    • $135/SF
    • 1 Day On Market

    Current Estimated Value $172,424

    Last Listing Agent Jay Foster RE/MAX REVOLUTION

    1007 S Main St, Fort Branch, IN 47648
  • 8094 S Angelia Dr, Fort Branch, IN 47648
    8094 S Angelia Dr, Fort Branch, IN 47648
    8094 S Angelia Dr, Fort Branch, IN 47648
    /15

    $179,000 Sold Oct 22, 2025

    8094 S Angelia Dr, Fort Branch, IN 47648

    • 3 Beds
    • 2 Baths
    • 1,728 Sq Ft
    • Built 1997

    Last Sold Summary

    • 5% Below List Price
    • $104/SF
    • 35 Days On Market

    Current Estimated Value $185,963

    Last Listing Agent Joshua Vida Paradigm Realty Solutions

    8094 S Angelia Dr, Fort Branch, IN 47648
  • 66 E 250 S, Princeton, IN 47670
    66 E 250 S, Princeton, IN 47670
    66 E 250 S, Princeton, IN 47670
    /36

    $177,000 Sold Aug 11, 2025

    66 E 250 S, Princeton, IN 47670

    • 4 Beds
    • 2 Baths
    • 2,016 Sq Ft
    • Built 1930

    Last Sold Summary

    • 20% Below List Price
    • $88/SF
    • 8 Days On Market

    Current Estimated Value $198,915

    Last Listing Agent Andrea White RE/MAX REVOLUTION

    66 E 250 S, Princeton, IN 47670
  • 1411 N 200 W, Princeton, IN 47670
    1411 N 200 W, Princeton, IN 47670
    1411 N 200 W, Princeton, IN 47670
    /3

    $180,000 Sold Nov 20, 2025

    1411 N 200 W, Princeton, IN 47670

    • 3 Beds
    • 1 Bath
    • 1,258 Sq Ft
    • Built 1982

    Last Sold Summary

    • 7% Below List Price
    • $143/SF
    • 41 Days On Market

    Last Listing Agent Sue Beloat RE/MAX REVOLUTION

    1411 N 200 W, Princeton, IN 47670
  • 215 N Center St, Princeton, IN 47670
    215 N Center St, Princeton, IN 47670
    /2

    $14,000 Sold Dec 04, 2025

    215 N Center St, Princeton, IN 47670

    • Land
    • 0.21 Acre
    • $66,667 per Acre

    Last Sold Summary

    • 28% Below List Price
    • 131 Days On Market

    Last Listing Agent Tim Mason RE/MAX REVOLUTION

    215 N Center St, Princeton, IN 47670
  • 6796 S 1050 Rd W, Owensville, IN 47665
    6796 S 1050 Rd W, Owensville, IN 47665
    6796 S 1050 Rd W, Owensville, IN 47665
    /15

    $230,000 Sold Oct 23, 2025

    6796 S 1050 Rd W, Owensville, IN 47665

    • 3 Beds
    • 2 Baths
    • 2,175 Sq Ft
    • Built 2012

    Last Sold Summary

    • 6% Below List Price
    • $106/SF
    • 257 Days On Market

    Current Estimated Value $249,193

    Last Listing Agent James Chappell Mission Real Estate Group Inc.

    6796 S 1050 Rd W, Owensville, IN 47665
  • 111 S Gibson St, Oakland City, IN 47660
    111 S Gibson St, Oakland City, IN 47660
    111 S Gibson St, Oakland City, IN 47660
    /24

    $204,900 Sold May 23, 2025

    111 S Gibson St, Oakland City, IN 47660

    • 4 Beds
    • 2.5 Baths
    • 2,730 Sq Ft
    • Built 1948

    Last Sold Summary

    • 2% Above List Price
    • $75/SF
    • 8 Days On Market

    Current Estimated Value $208,569

    Last Listing Agent Jenny McBride KELLER WILLIAMS CAPITAL REALTY

    111 S Gibson St, Oakland City, IN 47660
  • 9831 W Winyard Place, Owensville, IN 47665
    9831 W Winyard Place, Owensville, IN 47665
    9831 W Winyard Place, Owensville, IN 47665
    /19

    $354,900 Sold Feb 19, 2025

    9831 W Winyard Place, Owensville, IN 47665

    • 5 Beds
    • 2.5 Baths
    • 2,596 Sq Ft
    • Built 2010

    Last Sold Summary

    • 1% Below List Price
    • $137/SF
    • 43 Days On Market

    Current Estimated Value $351,785

    Last Listing Agent Grant Waldroup F.C. TUCKER EMGE

    9831 W Winyard Place, Owensville, IN 47665
  • 237 W 225 N, Princeton, IN 47670
    237 W 225 N, Princeton, IN 47670
    237 W 225 N, Princeton, IN 47670
    /12

    $218,500 Sold Jul 16, 2025

    237 W 225 N, Princeton, IN 47670

    • 3 Beds
    • 1 Bath
    • 1,125 Sq Ft
    • Built 1968

    Last Sold Summary

    • $194/SF
    • 2 Days On Market

    Current Estimated Value $215,692

    Last Listing Agent Grant Waldroup F.C. TUCKER EMGE

    237 W 225 N, Princeton, IN 47670
  • 1218 Mckinley St, Princeton, IN 47670
    1218 Mckinley St, Princeton, IN 47670
    1218 Mckinley St, Princeton, IN 47670
    /5

    $156,000 Sold Nov 19, 2025

    1218 Mckinley St, Princeton, IN 47670

    • 2 Beds
    • 1 Bath
    • 1,146 Sq Ft
    • Built 1900

    Last Sold Summary

    • 4% Above List Price
    • $136/SF
    • 3 Days On Market

    Last Listing Agent Sue Beloat RE/MAX REVOLUTION

    1218 Mckinley St, Princeton, IN 47670
  • 320 W Oak St, Princeton, IN 47670
    320 W Oak St, Princeton, IN 47670
    320 W Oak St, Princeton, IN 47670
    /34

    $227,000 Sold Jul 16, 2025

    320 W Oak St, Princeton, IN 47670

    • 4 Beds
    • 2 Baths
    • 2,160 Sq Ft
    • Built 1965

    Last Sold Summary

    • 19% Below List Price
    • $105/SF
    • 80 Days On Market

    Current Estimated Value $225,207

    Last Listing Agent Cookie Edwards RE/MAX REVOLUTION

    320 W Oak St, Princeton, IN 47670
  • 313 N Embree St, Princeton, IN 47670
    313 N Embree St, Princeton, IN 47670
    313 N Embree St, Princeton, IN 47670
    /15

    $60,000 Sold Dec 15, 2025

    313 N Embree St, Princeton, IN 47670

    • 4 Beds
    • 2 Baths
    • 2,229 Sq Ft
    • Built 1861

    Last Sold Summary

    • 37% Below List Price
    • $27/SF
    • 170 Days On Market

    Last Listing Agent Grant Waldroup F.C. TUCKER EMGE

    313 N Embree St, Princeton, IN 47670
  • 601 S Prince St, Princeton, IN 47670
    601 S Prince St, Princeton, IN 47670
    601 S Prince St, Princeton, IN 47670
    /13

    $139,900 Sold May 14, 2025

    601 S Prince St, Princeton, IN 47670

    • 2 Beds
    • 1 Bath
    • 1,120 Sq Ft
    • Built 1927

    Last Sold Summary

    • $125/SF
    • 6 Days On Market

    Current Estimated Value $133,615

    Last Listing Agent Michael Melton ERA FIRST ADVANTAGE REALTY, INC

    601 S Prince St, Princeton, IN 47670
  • 306 Wilson Ave, Princeton, IN 47670
    306 Wilson Ave, Princeton, IN 47670
    306 Wilson Ave, Princeton, IN 47670
    /31

    $195,000 Sold Feb 14, 2025

    306 Wilson Ave, Princeton, IN 47670

    • 3 Beds
    • 2 Baths
    • 1,958 Sq Ft
    • Built 1959

    Last Sold Summary

    • 7% Below List Price
    • $100/SF
    • 98 Days On Market

    Current Estimated Value $214,783

    Last Listing Agent Sue Beloat RE/MAX REVOLUTION

    306 Wilson Ave, Princeton, IN 47670
  • 927 N Hart St, Princeton, IN 47670
    927 N Hart St, Princeton, IN 47670
    927 N Hart St, Princeton, IN 47670
    /23

    $137,500 Sold Dec 12, 2025

    927 N Hart St, Princeton, IN 47670

    • 2 Beds
    • 1 Bath
    • 1,278 Sq Ft
    • Built 1970

    Last Sold Summary

    • 8% Below List Price
    • $108/SF
    • 19 Days On Market

    Last Listing Agent Tim Mason RE/MAX REVOLUTION

    927 N Hart St, Princeton, IN 47670
  • 111 N Seminary St, Princeton, IN 47670
    111 N Seminary St, Princeton, IN 47670
    111 N Seminary St, Princeton, IN 47670
    /15

    $70,000 Sold Mar 28, 2025

    111 N Seminary St, Princeton, IN 47670

    • 2 Beds
    • 1 Bath
    • 1,020 Sq Ft
    • Built 1947

    Last Sold Summary

    • 50% Below List Price
    • $69/SF
    • 273 Days On Market

    Current Estimated Value $96,052

    Last Listing Agent Kelly West Key Associates Signature Realty

    111 N Seminary St, Princeton, IN 47670
  • 2327 Jamaica Ct, Evansville, IN 47725
    2327 Jamaica Ct, Evansville, IN 47725
    2327 Jamaica Ct, Evansville, IN 47725
    /30

    $320,000 Sold Jul 23, 2025

    2327 Jamaica Ct, Evansville, IN 47725

    • 4 Beds
    • 2.5 Baths
    • 2,151 Sq Ft
    • Built 2018

    Last Sold Summary

    • 6% Below List Price
    • $149/SF
    • 28 Days On Market

    Current Estimated Value $359,982

    Last Listing Agent Denton Ice F.C. TUCKER EMGE

    2327 Jamaica Ct, Evansville, IN 47725
  • 10160 S Quail Crossing, Haubstadt, IN 47639
    10160 S Quail Crossing, Haubstadt, IN 47639
    10160 S Quail Crossing, Haubstadt, IN 47639
    /30

    $440,000 Sold Feb 02, 2026

    10160 S Quail Crossing, Haubstadt, IN 47639

    • 4 Beds
    • 2 Baths
    • 2,219 Sq Ft
    • Built 2016

    Last Sold Summary

    • 9% Below List Price
    • $198/SF
    • 173 Days On Market

    Last Listing Agent Michael Finney Berkshire Hathaway HomeServices Indiana Realty

    10160 S Quail Crossing, Haubstadt, IN 47639

Showing Results 241 - 280, Page 7 of 10

Indiana Gibson County

Recently Sold Real Estate & Homes in Gibson County, IN

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