6 Union Park, Boston, MA 02118 Property Records

Suffolk County and Boston City property record for 6 Union Park, Boston, MA 02118

Property Summary

Property Type	Exempt (Full or Partial)
Details	9 bd · 8 ba · 2,743 sqft · built 1900
Lot Size	0.063 acres (2,743 sqft)
Owner	2 Company Names on Record
Last Sale	$2,525,000 (Aug 2018)
Tax Bill	$408 (2025)
Deeds & Mortgages	Feb 2017 Mortgage Aug 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`CBOS W:03 P:06948 S:000`

Property Details

APN / Parcel Number

Primary APN	`CBOS W:03 P:06948 S:000`

Interior

Bedrooms	9 Beds
Full Baths	8 Baths
Half Baths	2 Half Baths
Total Rooms	16 Rooms
Units	3 Units
Stories	6 Stories
Building Area	2,743 sqft Total Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1900
Effective Year Built	Effective 2017
Architectural Style	Other
Exterior Material	Brick
Construction Type	Brick
Roof Type	Flat
Roof Material	Other
Lot Area	2,743 sqft (0.063 acres)

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Street Address	6 UNION PARK
City	BOSTON
State	MA
Zip	02118-3705
Property Category	Other
Property Type	Other > Exempt (Full or Partial)
Local Zoning Code	CM
Jurisdiction	BOSTON MA
Township / Civil Division	BOSTON
Census Block Group	1
Census Block	1001
Census Tract	70502

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic District	Within the South End District (Boundary Increase II) listed 2025 · 8 contributing resources · NRIS 73000324

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

Source: Suffolk County and Boston City records, as of October 20, 2026

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

Owner of Record	2 Company Names on Record
Mailing Address	6 UNION PARK, BOSTON, MA 02118-3705
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Feb 15, 2017	Deed of Trust, Mortgage · Commercial Mortgage NORTHERN BK & TR
Aug 20, 2018	Deed, Transfer FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 20, 2018 · Amount on Record
Deed Sale	Aug 20, 2018 · Amount on Record
Prior Sale	Nov 3, 2015 · Amount on Record
Deed Document Number	201873774
Deed Book / Page	60052 / 177
Transfer Doc	55275-249
Record Updated	Oct 29, 2026

February 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOSTON MA
Property Address	6 UNION PARK, BOSTON, MA 02118-3705
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	57563-91
Date	Feb 15, 2017
Book Page	57563/91
Instrument	14606

Lender

Name	NORTHERN BK & TR

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

August 2018: Deed, Transfer

Document Type	Deed
Jurisdiction	BOSTON MA
Recording Date	Aug 20, 2018
Property Address	6 UNION PARK, BOSTON, MA 02118-3705
Document Number	60052-177
Book / Page	60052 / 177
Instrument	73774
Transaction Type	Transfer
Record Updated	Feb 6, 2021

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$397.98
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	600520181
Date	Aug 20, 2018
Instrument	60052/0181

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Aug 20, 2048

Interest

Rate	3.5%
Max Rate At Change	10.1%
Max Rate	2.5%

Tax Assessment & Valuation

Source: Suffolk County and Boston City assessment roll, as of April 14, 2026

Property Jurisdictions

Type	Name
State	Massachusetts
County	Suffolk County
Municipality	Boston City
Unified School District	Boston School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill
2025	$408.00 (-98.97%)
2018	$39,798.00

Flood

Source: FEMA National Flood Hazard Layer, effective January 21, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	4 units insured incl. 4 condo units

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.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	BOSTON WATER AND SEWER COMMISSION (MWRA) serves 675,647 people · EPA ID MA3035000
Water Source	Purchased surface water from MWRA
Last State Inspection	Mar 2026
Lead	6 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	Lead service line replacement currently in violation since Nov 2020
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 324 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable · Fiber in parts of the area	2,000 / 2,000
Netafy Fixed Wireless	1,000 / 1,000
Verizon Fiber · Fixed Wireless in parts of the area	980 / 880
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Astound Broadband, Starry.

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