RESTORED ANTIQUE. CENTER CHIMNEY COLONIAL ON 45 INCREDIBLE ACRES. PERFECT FOR HORSES. IMPROVED KITCHEN, 2.5 BATHS, AND 6 FIREPLACES. A GORGEOUS HOME AT A GREAT PRICE!
Year
Property tax
Land + Additions
Assessment*
2026
$2,014 (+3.4%)
$108,800 + $19,000
$127,800
2025
$1,948 (−75.1%)
$108,800 + $19,100
$127,900
2024
$7,838 (+4.7%)
$106,400 + $398,300
$504,700
2023
$7,484 (−0.5%)
$101,600 + $354,200
$455,800
2022
$7,520 (+6.2%)
$123,500 + $301,600
$425,100
2021
$7,081 (+12.5%)
$123,500 + $258,200
$381,700
2020
$6,297 (−12.3%)
$116,500 + $217,900
$334,400
2019
$7,178 (+0.4%)
$119,100 + $208,200
$327,300
2018
$7,148 (−26.6%)
$101,200 + $253,200
$354,400
2017
$9,742 (+3.6%)
$237,500 + $230,200
$467,700
2016
$9,401 (+2.1%)
$237,500 + $230,200
$467,700
2015
$9,204 (+2.3%)
$237,500 + $230,200
$467,700
2014
$8,994 (−0.8%)
$237,500 + $233,400
$470,900
2013
$9,063 (+5.8%)
$249,500 + $269,300
$518,800
2012
$8,566 (+3.3%)
$249,500 + $272,200
$521,700
2011
$8,296 (+3.6%)
$276,600 + $280,200
$556,800
2010
$8,011 (+3.1%)
$290,400 + $296,900
$587,300
2009
$7,770
$318,600 + $331,100
$649,700
Public record
Beds
3
Baths
2.5
Stories
2
Lot width
—
Lot depth
—
Lot size
57.29 Acres
Year renovated
1980
Finished Sq. Ft.
2,976
Unfinished Sq. Ft.
—
Total Sq. Ft.
2,976
Year built
1769
Style
Single Family Residential
County
Middlesex County
APN
1551068S
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 23, 2026.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
3/10 Heat Factor
7 days above 94° expected this year, 16 days in 30 years
4/10 Wind Factor
21% chance of strong winds in next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 1 days in 30 years
Provided by First Street
Historical weather
Ashby, MA • 01431
Average low and high temperatures (°F)
29
14
32
16
47
27
57
37
66
47
77
57
82
62
79
56
73
51
61
41
48
32
34
19
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
92/ 100
Exceptional sunlight
Sunscore
This home receives average direct sun exposure in Ashby. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.9 hrs
5.7 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 531 Mason Rd
$196,037
$29K under list price of $225K
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $361K to $920K.