Washington County property records for 69 addresses on San Mar Rd, Boonsboro, MD · Last verified October 2026
| Properties | 69 |
|---|---|
| Median Sale Price | $275,000 |
| Deeds and Mortgages on File | 75 |
| Median Price per Sqft | $227 |
| Owner Occupied | 87% |
| Median Annual Tax Bill | $2,613 |
| Median Year Built | 1971 |
| Median Ownership Tenure | 16 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20710 San Mar Rd |
1 ba · 1,809 sqft built 1975 · 1.28 acres | $112,000 Apr 1989 | $3,348 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20716 San Mar Rd |
1 ba · 1,104 sqft built 1974 · 1.13 acres | — May 2021 | $2,069 2026 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20803 San Mar Rd |
1 ba · 1,448 sqft built 1929 · 0.493 acres | — Mar 2006 | $1,554 2026 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20805 San Mar Rd |
1 ba · 960 sqft built 1970 · 1 acre | $28,000 Oct 1984 | $2,250 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20810 San Mar Rd |
1 ba · 960 sqft built 1974 · 0.965 acres | $245,500 Aug 2020 | $3,125 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20816 San Mar Rd |
1.5 ba · 1,350 sqft built 1974 · 2.11 acres | $2,257 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20817 San Mar Rd |
1.5 ba · 1,692 sqft built 1900 · 2.45 acres | $153,000 Mar 2003 | $2,575 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20819 San Mar Rd |
2 ba · 1,080 sqft built 1999 · 1.15 acres | $15,000 Oct 1994 | $1,939 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20822 San Mar Rd |
1 ba · 1,152 sqft built 1974 · 1.28 acres | $379,717 Apr 2025 | $2,511 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20823 San Mar Rd |
32,818 sqft built 1975 · 10.8 acres | $400,000 Jul 1996 | $8,536 2026 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20827 San Mar Rd |
2 ba · 1,932 sqft built 2004 · 1.18 acres | — Apr 2004 | $3,763 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20828 San Mar Rd |
1 ba · 1,584 sqft built 1974 · 0.981 acres | $2,277 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20832 San Mar Rd |
2 ba · 1,094 sqft built 1997 · 1.41 acres | $56,500 Jan 1995 | $2,974 2026 | Assessor + 2 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20857 San Mar Rd |
1 ba · 624 sqft built 2004 · 15.2 acres | $285,000 Mar 2011 | $3,309 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20904 San Mar Rd |
1.5 ba · 1,344 sqft built 1972 · 2 acres | $200,000 Aug 2011 | $2,996 2026 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20907 San Mar Rd |
2 ba · 920 sqft built 1989 · 0.969 acres | $119,000 Oct 2017 | $1,810 2026 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20910 San Mar Rd |
1 ba · 1,080 sqft built 1956 · 0.4 acres | $190,000 Oct 2018 | $2,335 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20913 San Mar Rd |
2.5 ba · 1,848 sqft built 1994 · 1.18 acres | $41,500 May 1991 | $2,994 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20914 San Mar Rd |
1 ba · 1,208 sqft built 1964 · 0.361 acres | $2,248 2026 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20915 San Mar Rd |
2 ba · 1,450 sqft built 1970 · 1.36 acres | $147,340 May 1999 | $3,217 2026 | Assessor Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20917 San Mar Rd |
1.5 ba · 1,200 sqft built 1972 · 1.16 acres | $450,000 Mar 2026 | $2,997 2026 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20918 San Mar Rd |
1 ba · 960 sqft built 1954 · 0.35 acres | $205,000 Dec 2006 | $2,044 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20919 San Mar Rd |
1 ba · 1,128 sqft built 1978 · 1.66 acres | $2,118 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20921 San Mar Rd |
2 ba · 768 sqft built 1890 · 1.05 acres | $40,000 Jul 2022 | $2,119 2026 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20924 San Mar Rd |
1 ba · 816 sqft built 1951 · 2.8 acres | — Feb 1993 | $2,090 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20927 San Mar Rd |
1 ba · 674 sqft built 1915 · 2 acres | $75,000 Aug 1996 | $1,757 2026 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20928 San Mar Rd |
1 ba · 1,248 sqft built 1955 · 1 acre | $2,118 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20934 San Mar Rd |
1 ba · 857 sqft built 1952 · 1 acre | $41,000 Oct 2000 | $1,759 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20935 San Mar Rd |
1 ba · 782 sqft built 1951 · 0.9 acres | $220,000 Feb 2020 | $2,160 2026 | Assessor + 5 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20938 San Mar Rd |
2 ba · 796 sqft built 1950 · 0.389 acres | $297,900 Jan 2021 | $2,636 2026 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20941 San Mar Rd |
1.5 ba · 1,428 sqft built 1934 · 0.879 acres | $199,900 Dec 2005 | $2,041 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20944 San Mar Rd |
2 ba · 1,720 sqft built 1951 · 0.629 acres | $75,000 Jan 1994 | $3,082 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20945 San Mar Rd |
0.269 acres | $85,000 Oct 2006 | $1,493 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21005 San Mar Rd |
2.5 ba · 2,124 sqft built 1920 · 3.26 acres | $320,000 Mar 2005 | $3,715 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21012 San Mar Rd |
1 ba · 816 sqft built 1942 · 1.6 acres | $180,500 May 2005 | $1,783 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21102 San Mar Rd |
2 ba · 1,472 sqft built 1992 · 0.559 acres | $8,000 Aug 1984 | $2,090 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21103 San Mar Rd |
1.5 ba · 1,637 sqft built 1900 · 8.58 acres | $168,000 Nov 2011 | $2,613 2026 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21106 San Mar Rd |
2 ba · 1,400 sqft built 1993 · 1.95 acres | $154,500 May 1999 | $3,040 2026 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21110 San Mar Rd |
2 ba · 1,248 sqft built 1992 · 1.16 acres | $110,000 Jan 1993 | $2,627 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21112 San Mar Rd |
2 ba · 1,300 sqft built 1994 · 1.78 acres | $231,000 Dec 2004 | $3,385 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21114 San Mar Rd |
1 ba · 792 sqft built 1974 · 1.3 acres | $420,000 Feb 2021 | $1,102 2026 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21116 San Mar Rd |
3 ba · 1,668 sqft built 1992 · 3.58 acres | $400,000 Apr 2023 | $3,942 2026 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21118 San Mar Rd |
2.5 ba · 1,232 sqft built 1978 · 2.18 acres | $2,862 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21120 San Mar Rd |
2 ba · 2,257 sqft built 1978 · 2.18 acres | $275,000 Apr 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21122 San Mar Rd |
1 ba · 1,152 sqft built 1946 · 0.25 acres | $65,000 Nov 1999 | $1,542 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21124 San Mar Rd |
1 ba · 1,832 sqft built 1955 · 2.25 acres | $77,000 Sep 1994 | $2,593 2026 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21130 San Mar Rd |
1 ba · 915 sqft built 1858 · 0.85 acres | $135,000 Nov 2018 | $1,992 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21131 San Mar Rd |
1.5 ba · 1,443 sqft built 1934 · 2.1 acres | $270,000 Nov 2025 | $3,120 2026 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21137 San Mar Rd |
1 ba · 1,017 sqft built 1953 · 1.8 acres | $147,000 Sep 2020 | $2,096 2026 | Assessor + 3 Documents Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21142 San Mar Rd |
1 ba · 1,340 sqft built 1974 · 1 acre | $181,000 Nov 2019 | $2,857 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21143 San Mar Rd |
2 ba · 1,560 sqft built 2000 · 8.16 acres | $20,000 Sep 1999 | $3,475 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21151 San Mar Rd |
2 ba · 1,676 sqft built 1875 · 2 acres | $2,088 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21156 San Mar Rd |
1 ba · 1,288 sqft built 1830 · 3.56 acres | $185,000 Nov 2022 | $2,532 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21164 San Mar Rd |
2 ba · 1,463 sqft built 1875 · 0.582 acres | $333,000 Sep 2022 | $3,391 2026 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21168 San Mar Rd |
2.5 ba · 1,696 sqft built 2008 · 2.21 acres | $418,000 Mar 2021 | $4,534 2026 | Assessor + 6 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21172 San Mar Rd |
2.5 ba · 2,500 sqft built 2003 · 9.68 acres | $110,000 Dec 2002 | $5,293 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21175 San Mar Rd |
2 ba · 3,010 sqft built 1800 · 32.6 acres | $610,000 May 2021 | $4,508 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21176 San Mar Rd |
3 ba · 2,016 sqft built 1972 · 2 acres | $189,900 May 2002 | $3,214 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21203 San Mar Rd |
2 ba · 1,698 sqft built 1900 · 3.01 acres | $255,000 Jul 2015 | $4,000 2026 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21205 San Mar Rd |
2.5 ba · 1,782 sqft built 2013 · 6.28 acres | $75,000 Oct 2012 | $3,792 2026 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21209 San Mar Rd |
2 ba · 1,405 sqft built 2013 · 6.3 acres | $249,000 Apr 2013 | $4,576 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21211 San Mar Rd |
2 ba · 1,340 sqft built 1952 · 1 acre | $266,900 Jun 2021 | $3,035 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21221 San Mar Rd |
3 ba · 1,540 sqft built 2010 · 1.28 acres | $87,900 Apr 2010 | $5,471 2026 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21222 San Mar Rd |
36,835 sqft built 1971 · 9.05 acres | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21226 San Mar Rd |
1,920 sqft 0.459 acres | — Nov 1993 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21232 San Mar Rd |
1.5 ba · 1,176 sqft built 1976 · 1.53 acres | $2,579 2026 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21236 San Mar Rd |
1 ba · 1,092 sqft built 1960 · 0.759 acres | $77,000 Nov 2014 | $2,072 2026 | Assessor Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21239 San Mar Rd |
1 ba · 1,673 sqft built 1879 · 0.969 acres | $111,000 Feb 2010 | $2,110 2026 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21240 San Mar Rd |
2 ba · 1,229 sqft built 1964 · 0.739 acres | $245,000 Feb 2020 | $3,433 2026 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |