186 Mason Ter, Brookline, MA 02446 Property Records

Norfolk County and Brookline Town property record for 186 Mason Ter, Brookline, MA 02446 · Last verified July 2026

Property Summary

Property Type	Condominium
Details	4 bd · 3.5 ba · 1,397 sqft · built 1900
Lot Size	0.353 acres (15,372 sqft)
Owner	2 Individual Names on File
Last Sale	$2,600,000 (Dec 2025)
Tax Bill	$20,123 (2025)
Deeds & Mortgages	Mar 2026 Sale Dec 2025 Sale + 2 more
Flood Zone	Zone X (minimal risk)
APN	`99988310`

Property Details

APN / Parcel Number

Primary APN	`99988310`
Alternative APNs	`BROO B:086 L:0027 S:0001` `99988230`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Units	2 Units
Stories	1 Story
Building Area	1,397 sqft Living Area
Gross Area	2,504 sqft
Basement Area	1,107 sqft
Finished Basement	1,107 sqft
Unfinished Basement	1,107 sqft

Exterior

Year Built	Built 1900
Effective Year Built	Effective 1983
Architectural Style	Other
Exterior Material	Stone
Construction Type	Frame
Roof Type	Gable
Roof Material	Asphalt
Lot Area	15,372 sqft (0.353 acres)

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Steam
Heating Fuel	Gas

Location & Zoning

Account Number	99988310
Street Address	186 MASON TER
City	BROOKLINE
State	MA
Zip	02446-2772
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Block	86
Legal Lot Number	27
Jurisdiction	BROOKLINE MA
Township / Civil Division	BROOKLINE
Census Block Group	2
Census Block	2000
Census Tract	400402

Owner

Source: Norfolk County and Brookline Town records · APN 99988310

Assessment roll updated April 14, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on File
Mailing Address	186 MASON TER, BROOKLINE, MA 02446-2772
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Tenants in Common

Deeds, Mortgages & Sale History

Date	Document
Mar 16, 2026	Condominium Deed, Transfer
Dec 09, 2025	Quit Claim Deed, Transfer
Sep 30, 2021	Condominium Deed, Transfer
Sep 29, 2021	Condominium Deed, Transfer

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Dec 09, 2025 · Amount on Record
Deed Sale	Dec 09, 2025 · Amount on Record
Prior Sale	Sep 30, 2021 · Amount on Record
Deed Document Number	202587070
Deed Book / Page	42816 / 46
Last Transfer Date	Mar 12, 2026
Transfer Doc	042985-488
Record Updated	Sep 20, 2026

March 2026: Condominium Deed, Transfer

Document Type	Condominium Deed
Jurisdiction	BROOKLINE MA
Recording Date	Mar 16, 2026
Property Address	186 MASON TER, BROOKLINE, MA 02446-2772
Document Number	042985-488
Book / Page	42985 / 488
Instrument Date	Mar 12, 2026
Instrument	16091
Transaction Type	Transfer
Record Updated	Apr 08, 2026

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common

December 2025: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BROOKLINE MA
Recording Date	Dec 09, 2025
Property Address	186 MASON TER, BROOKLINE, MA 02446-2772
Document Number	0042816-46
Book / Page	42816 / 46
Instrument Date	Dec 08, 2025
Instrument	87070
Transaction Type	Transfer
Record Updated	Apr 08, 2026

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants by the Entirety
Address	186 MASON TER # 186, 186, BROOKLINE, MA 02446-2772

September 2021: Condominium Deed, Transfer

Document Type	Condominium Deed
Jurisdiction	BROOKLINE MA
Recording Date	Sep 30, 2021
Property Address	186 MASON TER, BROOKLINE, MA 02446-2772
Document Number	0039914-71
Book / Page	39914 / 71
Instrument Date	Sep 28, 2021
Instrument	126400
Transaction Type	Transfer
Record Updated	Apr 08, 2026

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants by the Entirety
Address	186-188 MASON TER # 186, 186, BROOKLINE, MA 02446-2772

September 2021: Condominium Deed, Transfer

Document Type	Condominium Deed
Jurisdiction	BROOKLINE MA
Recording Date	Sep 29, 2021
Property Address	186 MASON TER, BROOKLINE, MA 02446-2772
Document Number	039908-496
Book / Page	39908 / 496
Instrument Date	Sep 22, 2021
Instrument	125765
Transaction Type	Transfer
Record Updated	Apr 08, 2026

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	186-188 MASON TER # 188, 188, BROOKLINE, MA 02446-2772

Tax Assessment & Valuation

Source: Norfolk County and Brookline Town records · Assessment roll updated April 14, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Norfolk County
County Subdivision	Brookline Town
Unified School District	Brookline School District (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$20,123.00 (+3.05%)	$2,038,800 (+2%) Building $2,038,800	$2,473,040
2024	$19,528.00 (+5.21%)	$1,998,800 (+7.36%) Building $1,998,800
2023	$18,561.00	$1,861,700 Building $1,861,700

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Norfolk County (25021C), updated May 26, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 250214004022, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Nearby Flood Policies	1 in force

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 720 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Xfinity	Cable	2,000 / 2,000
Radiate Holdings	Cable	1,500 / 50
Verizon	Fiber	980 / 880
T-Mobile USA	Fixed Wireless	100 / 20

May also be available at this address: AT&T, Verizon, Starry, Xfinity. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

Nearby Properties on Mason Ter

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures