Middlesex County and Marlborough City property records for 6 addresses on Mountain Ave, Marlborough, MA · Last verified October 2026
| Properties | 6 |
|---|---|
| Median Sale Price | $522,500 |
| Deeds and Mortgages on File | 14 |
| Median Price per Sqft | $356 |
| Owner Occupied | 33% |
| Median Annual Tax Bill | $5,897 |
| Median Year Built | 1915 |
| Median Ownership Tenure | 3 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
2 bd · 2 ba · 1,776 sqft · built 1890 · 0.145 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $690,000Aug 2025 | $4,0362025 | Amount on Record Sep 2022 | Owner on Record | Assessor + 3 DocumentsUpdated Oct 2026 |
4 bd · 3 ba · 2,305 sqft · built 1920 · 0.148 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $240,000Aug 2019 | $6,2262025 | Amount on Record Jul 2015 | Owner on Record | Assessor + 4 DocumentsUpdated Oct 2026 |
3 bd · 1 ba · 991 sqft · built 1915 · 0.094 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $380,000Nov 2023 | $3,1702025 | Amount on Record Feb 2002 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Jul 2026 |
3 bd · 2 ba · 1,466 sqft · built 1900 · 0.155 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $522,500Jun 2025 | $4,6982025 | Amount on Record Mar 2003 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
4 bd · 3.5 ba · 2,304 sqft · built 1988 · 0.134 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $333,000Sep 2015 | $6,4852025 | Amount on Record Oct 2001 | Owner on Record | AssessorUpdated Oct 2026 |
7 bd · 3.5 ba · 2,156 sqft · built 1900 · 0.178 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $603,000Jun 2022 | $5,8972025 | Amount on Record Apr 2008 | Owner on Record | Assessor + 3 DocumentsUpdated Oct 2026 |