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33 Sleeper St, Apt 509, Boston, MA 02210 Property Records

Suffolk County and Boston City property record for 33 Sleeper St, Apt 509, Boston, MA 02210

Property Summary

Property TypeCondominium
Details1 bd · 1 ba · 1,135 sqft · built 1911
Lot Size0.026 acres (1,135 sqft)
Owner2 Individual Names on Record
Last Sale$1,000,000 (Jun 2023)
Tax Bill$10,188 (2025)
Deeds & MortgagesJun 2023 Sale & Mortgage
Feb 2020 Refinance
Flood ZoneZone AE (high risk)
APNSBOS W:06 P:02669 S:184

Property Details

APN / Parcel Number

Primary APNSBOS W:06 P:02669 S:184

Interior

Bedrooms1 Bed
Full Baths1 Bath
Total Rooms2 Rooms
Units30 Units
Stories1 Story
Building Area1,135 sqft Living Area

Exterior

Year BuiltBuilt 1911
Effective Year BuiltEffective 2021
Architectural StyleOther
Exterior MaterialBrick
Roof TypeFlat
Lot Area1,135 sqft (0.026 acres)

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemHeat Pump

Location & Zoning

Street Address33 SLEEPER ST, 509
CityBOSTON
StateMA
Zip02210-1203
Property CategoryResidential
Property TypeResidential > Condominium / Townhouse > Condominium
Local Zoning CodeCD
Legal SubdivisionDOCKSIDE PLACE
JurisdictionBOSTON MA
Township / Civil DivisionBOSTON
Census Block Group2
Census Block2002
Census Tract60604

Historic Designation

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

Historic DistrictWithin the Fort Point Channel Historic District
listed 2004 · 98 contributing resources · NRIS 04000959

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 July 20, 2026

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

Owner of Record2 Individual Names on Record
Mailing Address33 SLEEPER ST, 509, BOSTON, MA 02210-1203
OccupancyOwner Occupied
Owner TypeIndividual
VestingHusband and Wife

Deeds, Mortgages & Sale History

DateDocument
Jun 26, 2023Condominium Deed, Transfer · Stand-Alone First Mortgage
RADIUS FINANCIAL GROUP
Feb 10, 2020Deed of Trust, Mortgage · Stand-Alone Refinance
UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleJun 26, 2023 · Amount on Record
Deed SaleJun 26, 2023 · Amount on Record
Prior SaleSep 26, 1997 · Amount on Record
Deed Document Number202338778
Deed Book / Page69139 / 186
Record UpdatedSep 20, 2026

June 2023: Condominium Deed, Transfer

Document TypeCondominium Deed
JurisdictionBOSTON MA
Recording DateJun 26, 2023
Property Address33 SLEEPER ST APT 509, 509, BOSTON, MA 02210-1203
Document Number069139-186
Book / Page69139 / 186
Instrument DateJun 23, 2023
Instrument38778
Transaction TypeTransfer
Record UpdatedJul 19, 2023

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipTenants by the Entirety
Address33 SLEEPER ST APT 509, 509, BOSTON, MA 02210-1203
InvestorPossibly a Property Investor

Mortgage

Document Number0000038779
DateJun 26, 2023
Instrument38779
Lender
NameRADIUS FINANCIAL GROUP
Agreement
TypeStand-Alone First Mortgage
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Rate6.38%
Type Change DateJul 1, 2033
Max Rate At Change2.75%
IndexOther

February 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOSTON MA
Property Address33 SLEEPER ST APT 509, 509, BOSTON, MA 02210-1203
Transaction TypeMortgage
Record UpdatedFeb 15, 2022

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number062516-138
DateFeb 10, 2020
Book Page62516/138
Instrument11248
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
Agreement
TypeStand-Alone Refinance
AmountAmount Recorded
Term181 Months
DueMar 1, 2035

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateMassachusetts
CountySuffolk County
MunicipalityBoston City
Unified School DistrictBoston School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$10,188.00 (+7.07%)$879,800 (+0.79%) Building $879,800$1,150,450 (+5.92%)
2024$9,515.00 (+2.57%)$872,900 (+1.05%) Building $872,900$1,086,135
2023$9,277.00$863,800 Building $863,800

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

Flood

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

FEMA Flood ZoneZone AE
high risk
100-Year FloodplainYes
1% annual chance
FloodwayNo
Base Flood Elevation10.0 ft
Flood Insurance RequirementRequired
federally backed loans
Flood Insurance CostPremium on Record
median of 32 individual policies
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies227 units insured
incl. 195 condo units
Nearby Flood Claims3 (2018)
Most Recent ClaimMar 2018 · other causes

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 RiskNot rated
no burnable land within ember reach

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

Internet Providers

Source: FCC Broadband Data Collection, based on 95 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable · Fiber in parts of the area		2,000 / 2,000
Netafy
Fixed Wireless		600 / 150
AT&T
Fixed Wireless		100 / 20

May also be available: Astound Broadband, Starry, T-Mobile, Verizon.

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