Cook County property records for 55 addresses on Welwyn Ave, Des Plaines, IL · Last verified October 2026
| Properties | 55 |
|---|---|
| Median Sale Price | $277,000 |
| Deeds and Mortgages on File | 58 |
| Median Price per Sqft | $271 |
| Owner Occupied | 96% |
| Median Annual Tax Bill | $5,470 |
| Median Year Built | 1951 |
| Median Ownership Tenure | 17 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1805 Welwyn Ave |
3 bd · 1 ba · 1,200 sqft built 1951 · 0.175 acres | $319,500 Aug 2021 | $6,772 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1806 Welwyn Ave |
2 bd · 1.5 ba · 864 sqft built 1952 · 0.19 acres | $111,000 May 2012 | $4,688 2023 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1814 Welwyn Ave |
3 bd · 1 ba · 864 sqft built 1951 · 0.172 acres | $235,000 Jan 2021 | $5,717 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1815 Welwyn Ave |
3 bd · 1 ba · 864 sqft built 1951 · 0.143 acres | $257,500 Jun 2024 | $5,018 2023 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1821 Welwyn Ave |
3 bd · 1.5 ba · 1,089 sqft built 1951 · 0.143 acres | $141,000 Jul 1995 | $6,244 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1822 Welwyn Ave |
3 bd · 1 ba · 864 sqft built 1951 · 0.172 acres | $154,000 Oct 2012 | $5,717 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1835 Welwyn Ave |
2 bd · 1 ba · 864 sqft built 1951 · 0.143 acres | $283,000 Dec 2005 | $5,355 2023 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1836 Welwyn Ave |
3 bd · 1 ba · 913 sqft built 1951 · 0.172 acres | $265,000 Apr 2007 | $6,129 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1841 Welwyn Ave |
3 bd · 1 ba · 864 sqft built 1951 · 0.143 acres | $190,000 May 2002 | $2,240 2023 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1842 Welwyn Ave |
2 bd · 1.5 ba · 864 sqft built 1951 · 0.204 acres | $185,000 Sep 2010 | $5,717 2023 | Assessor + 7 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1847 Welwyn Ave |
2 bd · 1.5 ba · 864 sqft built 1951 · 0.143 acres | $200,000 Apr 2023 | $5,717 2023 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1851 Welwyn Ave |
3 bd · 1 ba · 1,369 sqft built 1954 · 0.143 acres | $5,281 2023 | Assessor + 1 Document Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1856 Welwyn Ave |
2 bd · 1 ba · 864 sqft built 1951 · 0.19 acres | $202,000 Nov 2009 | $5,454 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1859 Welwyn Ave |
3 bd · 1 ba · 864 sqft built 1951 · 0.143 acres | $258,000 Jul 2004 | $5,470 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1864 Welwyn Ave |
2 bd · 1 ba · 882 sqft built 1954 · 0.172 acres | $262,000 Mar 2005 | $5,405 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1865 Welwyn Ave |
3 bd · 1 ba · 874 sqft built 1951 · 0.143 acres | $5,018 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1874 Welwyn Ave |
2 bd · 1 ba · 1,088 sqft built 1951 · 0.172 acres | $97,666 Aug 1997 | $5,717 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1877 Welwyn Ave |
2 bd · 1 ba · 1,055 sqft built 1952 · 0.143 acres | $122,500 Jun 1990 | $3,244 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1886 Welwyn Ave |
3 bd · 1 ba · 864 sqft built 1951 · 0.172 acres | $200,000 May 2002 | $5,015 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1887 Welwyn Ave |
3 bd · 1 ba · 864 sqft built 1951 · 0.143 acres | $246,000 Jan 2016 | $6,591 2023 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1892 Welwyn Ave |
3 bd · 1 ba · 1,152 sqft built 1951 · 0.204 acres | $150,000 Jun 1996 | $5,981 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1895 Welwyn Ave |
4 bd · 1.5 ba · 1,198 sqft built 1951 · 0.143 acres | $385,000 Dec 2025 | $5,922 2023 | Assessor + 4 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1899 Welwyn Ave |
4 bd · 1 ba · 1,203 sqft built 1951 · 0.143 acres | $337,000 Feb 2025 | $5,545 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1905 Welwyn Ave |
2 bd · 1 ba · 974 sqft built 1951 · 0.143 acres | $346,000 Aug 2023 | $5,453 2023 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1906 Welwyn Ave |
4 bd · 2 ba · 1,728 sqft built 1951 · 0.19 acres | $222,500 Jul 2004 | $6,863 2023 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1914 Welwyn Ave |
2 bd · 1 ba · 857 sqft built 1950 · 0.171 acres | $312,000 Oct 2025 | $5,800 2023 | Assessor + 5 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1915 Welwyn Ave |
3 bd · 1 ba · 1,134 sqft built 1951 · 0.143 acres | $160,000 Aug 1999 | $4,972 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1921 Welwyn Ave |
3 bd · 1.5 ba · 864 sqft built 1954 · 0.143 acres | $5,116 2023 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1928 Welwyn Ave |
2 bd · 1.5 ba · 808 sqft built 1950 · 0.171 acres | $64,500 Jun 1986 | $4,622 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1935 Welwyn Ave |
3 bd · 1.5 ba · 896 sqft built 1950 · 0.143 acres | $106,000 Nov 2010 | $5,717 2023 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1936 Welwyn Ave |
2 bd · 1 ba · 808 sqft built 1950 · 0.171 acres | $277,000 Aug 2021 | $5,018 2023 | Assessor + 2 Documents Updated Aug 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1941 Welwyn Ave |
5 bd · 2 ba · 1,728 sqft built 1952 · 0.195 acres | $7,035 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1942 Welwyn Ave |
4 bd · 1.5 ba · 912 sqft built 1952 · 0.203 acres | $145,000 Nov 1998 | $6,085 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1959 Welwyn Ave |
3 bd · 2 ba · 1,139 sqft built 1949 · 0.165 acres | $212,000 May 2015 | $5,717 2023 | Assessor + 1 Document Updated Aug 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1960 Welwyn Ave |
4 bd · 2 ba · 1,412 sqft built 1952 · 0.16 acres | $134,000 Jul 1995 | $5,981 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1963 Welwyn Ave |
3 bd · 2 ba · 1,090 sqft built 1949 · 0.165 acres | $228,000 Oct 2020 | $5,454 2023 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1964 Welwyn Ave |
4 bd · 2.5 ba · 2,392 sqft built 1973 · 0.166 acres | $300,000 Dec 2021 | $8,964 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1971 Welwyn Ave |
2 bd · 2 ba · 1,090 sqft built 1949 · 0.165 acres | $245,000 Aug 2017 | $5,190 2023 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1972 Welwyn Ave |
2 bd · 2 ba · 1,090 sqft built 1949 · 0.166 acres | $93,500 Nov 1989 | $4,926 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1984 Welwyn Ave |
3 bd · 2 ba · 1,090 sqft built 1949 · 0.166 acres | $275,000 Nov 2021 | $6,064 2023 | Assessor + 3 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1991 Welwyn Ave |
3 bd · 2 ba · 1,139 sqft built 1949 · 0.165 acres | $114,000 Jan 2012 | $5,454 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1992 Welwyn Ave |
3 bd · 2 ba · 1,090 sqft built 1949 · 0.166 acres | $155,500 Oct 2009 | $1,769 2023 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2003 Welwyn Ave |
3 bd · 2 ba · 1,139 sqft built 1949 · 0.165 acres | — Jun 2002 | $5,190 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2004 Welwyn Ave |
3 bd · 2 ba · 1,090 sqft built 1949 · 0.166 acres | $240,000 May 2005 | $5,190 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2011 Welwyn Ave |
3 bd · 2 ba · 1,090 sqft built 1949 · 0.165 acres | $140,000 Aug 2017 | $2,900 2023 | Assessor + 2 Documents Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2012 Welwyn Ave |
3 bd · 1.5 ba · 1,139 sqft built 1949 · 0.166 acres | $235,000 Apr 2021 | $6,064 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2019 Welwyn Ave |
3 bd · 1 ba · 1,635 sqft built 1949 · 0.165 acres | $151,000 Sep 2000 | $6,429 2023 | Assessor + 1 Document Updated Aug 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2024 Welwyn Ave |
3 bd · 2 ba · 1,139 sqft built 1949 · 0.166 acres | $202,000 Jun 2010 | $5,717 2023 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2031 Welwyn Ave |
4 bd · 2 ba · 1,454 sqft built 1949 · 0.165 acres | $138,000 May 1994 | $5,717 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2032 Welwyn Ave |
3 bd · 2 ba · 1,090 sqft built 1950 · 0.166 acres | $65,000 Nov 2023 | $1,053 2023 | Assessor + 3 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2039 Welwyn Ave |
3 bd · 2.5 ba · 1,178 sqft built 1949 · 0.165 acres | $82,666 Oct 1997 | $5,454 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2040 Welwyn Ave |
3 bd · 2 ba · 1,390 sqft built 1949 · 0.166 acres | $160,000 May 2001 | $5,717 2023 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2043 Welwyn Ave |
3 bd · 2 ba · 1,090 sqft built 1949 · 0.165 acres | $2,268 2023 | Assessor Updated Jun 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2046 Welwyn Ave |
3 bd · 2 ba · 1,090 sqft built 1953 · 0.166 acres | $150,000 Sep 2001 | $5,454 2023 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2053 Welwyn Ave |
3 bd · 2 ba · 1,350 sqft built 1949 · 0.203 acres | $145,000 Aug 2009 | $6,591 2023 | Assessor Updated Oct 2026 | 2 Owners on File Owner Occupied |