Bergen County and Mahwah Township property records for 23 addresses on Hillside Ave, Mahwah, NJ · Last verified October 2026
| Properties | 23 |
|---|---|
| Median Sale Price | $650,000 |
| Deeds and Mortgages on File | 22 |
| Median Price per Sqft | $333 |
| Owner Occupied | 91% |
| Median Annual Tax Bill | $8,423 |
| Median Year Built | 1922 |
| Median Ownership Tenure | 11 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
2 Hillside Ave |
1,632 sqft built 1964 · 0.224 acres | $435,000 Feb 2019 | $7,787 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
6 Hillside Ave |
1,664 sqft built 1930 · 0.235 acres | $650,000 Jan 2023 | $8,678 2025 | Assessor + 1 Document Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
8 Hillside Ave |
1,742 sqft built 1922 · 0.132 acres | $225,000 Jul 1997 | $7,755 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
9 Hillside Ave |
2,132 sqft built 1909 · 0.258 acres | $580,500 Dec 2015 | $9,942 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
11 Hillside Ave |
1,966 sqft built 1900 · 0.344 acres | $582,500 Jun 2018 | $9,735 2025 | Assessor + 6 Documents Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
12 Hillside Ave |
1,305 sqft built 1955 · 0.172 acres | $200,417 Sep 1994 | $7,906 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
13 Hillside Ave |
built 2024 · 0.258 acres | $6,168 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
14 Hillside Ave |
1,404 sqft built 1927 · 0.172 acres | $8,306 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
15 Hillside Ave |
3,566 sqft built 2024 · 0.258 acres | $1,495,000 Sep 2025 | $6,168 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
18 Hillside Ave |
2,193 sqft built 1927 · 0.172 acres | $525,000 Mar 2015 | $10,063 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
20 Hillside Ave |
1,512 sqft built 1954 · 0.229 acres | $160,000 May 2002 | $8,542 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
21 Hillside Ave |
1,577 sqft built 1910 · 0.344 acres | $495,000 Jan 2019 | $9,576 2025 | Assessor + 1 Document Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
22 Hillside Ave |
2,657 sqft built 2000 · 0.222 acres | $885,000 Aug 2021 | $13,428 2025 | Assessor + 2 Documents Updated Oct 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
23 Hillside Ave |
1,798 sqft built 1915 · 0.172 acres | $7,912 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
25 Hillside Ave |
1,510 sqft built 1910 · 0.179 acres | $350,000 Sep 2003 | $8,359 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
29 Hillside Ave |
1,782 sqft built 1925 · 0.2 acres | — May 1992 | $9,208 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
31 Hillside Ave |
1,500 sqft built 1920 · 0.206 acres | $458,000 Nov 2020 | $8,132 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
33 Hillside Ave |
1,820 sqft built 1910 · 0.172 acres | — Sep 1994 | $8,423 2025 | Assessor + 1 Document Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
35 Hillside Ave |
1,368 sqft built 1918 · 0.172 acres | $147,500 Mar 1993 | $7,657 2025 | Assessor + 2 Documents Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
36 Hillside Ave |
1,839 sqft built 1927 · 0.229 acres | $163,000 Jul 1995 | $9,023 2025 | Assessor Updated Jul 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
37 Hillside Ave |
1,556 sqft built 1915 · 0.172 acres | $800,000 Dec 2025 | $8,144 2025 | Assessor + 2 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
39 Hillside Ave |
1,226 sqft built 1909 · 0.396 acres | $365,000 Apr 2015 | $9,201 2025 | Assessor Updated Jul 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
40 Hillside Ave |
2,771 sqft built 1905 · 0.367 acres | $149,932 Oct 2005 | $11,560 2025 | Assessor + 1 Document Updated Jul 2026 | Owner on File Owner Occupied |