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Building and Landlord Data Analysis Report

4220-4222 18th St, San Francisco, CA 94114

1
Complaints
0
Fire Incidents
48
311 Calls
1
Permits

Risk Assessment

31
High Risk

This building is in the riskiest 10% of buildings in Presidio Heights with significant maintenance issues.

Our AI predicts there is a 31% chance of no major maintenance issues.
Augrented Insights Report

The property at 4220-4222 18th Street is a three-story multi-family residential building located in the Eureka Valley/Dolores Heights neighborhood, built in 1902 and currently owned by the Bolton Family Trust. The building has undergone significant modifications and faced several compliance issues in recent years, with the most concerning patterns emerging between 2022-2024. Multiple complaints between 2022-2024 have alleged unauthorized unit conversions, with reports of the property being operated as four separate rental units instead of the legally permitted two-unit configuration.

These complaints also noted concerns about improper window replacements, including unauthorized non-conforming aluminum windows, and garage space misuse. The property underwent substantial renovations between 2015-2016, including the addition of attic bedrooms and bathrooms, electrical upgrades, and various plumbing improvements, though some work appears to have been completed without the necessary permits or proper inspections, according to recent complaints. In addition to the unauthorized unit concerns, there have been several building violations and complaints regarding basic maintenance and safety issues.

Recent building violations from August-September 2024 included a malfunctioning bathtub and improper garage usage, while previous issues from 2009 documented concerns about ceilings, deck repairs, door functionality, heater vents, and sanitation problems. The electrical system has seen multiple upgrades, including GFCI installations and kitchen rewiring, though some work appears to have been performed without proper follow-through on permits. Historical records show that the property initially had parking spaces that were subsequently eliminated through planning approvals, and there was a fire complaint in 2009 regarding blocked exits that was promptly corrected. The building's recent history shows a pattern of renovation work being completed without proper permits or inspections, particularly concerning unit conversions and additional living spaces beyond the originally permitted two-unit configuration.

Last updated: January 17, 2025
This report is created with AI and based on the most recent 10 data items in each category. Full reports with 50+ data points are available to subscribers.

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Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Eureka Valley/Dolores Heights.

Building Characteristics

Total units 2
Year built 1902
Total area 5219 sq ft
Floors 3
Tax Abatements Home Owners
Building Class F - Flats & Duplex
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Key Building Statistics

1
Building Complaints
Number of complaints filed with the Department of Building Inspection in the last 7 years.
0
Code Violations
Building code violations issued by DBI in the last 7 years.
0
Fire Incidents
Total number of fire incidents reported at this building.
0
DBI Director Hearings
Number of Director's Hearings held by DBI in the last 7 years.
48
311 Calls
Number of 311 calls for this building.
0
Fire Injuries
Number of fire injuries reported by SFFD.
1
Building Permits
Number of building permits issued by DBI.

Included Addresses

  • 4220 18th St, San Francisco CA 94114
  • 4222 18th St, San Francisco CA 94114

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Reviews of 4220-4222 18th St

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4220-4222 18th St Landlord Information

Ownership Data

Ownership data from the Secured Roll (property tax) provided by the SF Assessor-Recorder.

NameAddress
Bolton Family TrustJames & Shanxia Bolton Trus 4222 18Th St San Francisco CA 94114

Landlord Portfolio

We cross-reference landlords' property tax registrations to find the other buildings they own or manage.

AddressUnitsCode ViolationsRisk Rating
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Landlord Court Records

From CA Court Service & DocketAlarm. Note: name matching only, verify parties are actually the owners by reviewing the case files!

Date FiledCase TitleCourtLink
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4220-4222 18th St Rent Control Status

Year Built
Built before 1979
Units
More than 1 unit
Rent Board Registration
Not applicable
Additional Info
N/A
Year BuiltUnitsRent Board RegistrationAdditional Info
Before 1979 >1 unit N/A N/A

Full Building Data for 4220-4222 18th St

311 Housing Complaints

The table below shows the 311 housing complaints received regarding the conditions at 4220-4222 18th St, as well as requests for service nearby.

OpenedCategoryResponsible AgencyRequest TypeRequest DetailsStatus
2025-07-26 14:51:40+00:00 Street and Sidewalk Cleaning PW - Street and Environmental Servicesgarbage_and_debrisoil_paint_other_liquid_spill_wet Closed
2025-07-05 06:59:47+00:00 Street and Sidewalk Cleaning PW - Street and Environmental Servicesgarbage_and_debrishuman_waste_or_urine Closed
2025-07-01 15:26:46+00:00 Illegal Postings PW - Street and Environmental Servicesmultiple_postingsNone Closed
2025-06-25 12:33:19+00:00 Parking Enforcement MTA - Parking Enforcement Dispatchblocking_driveway_cite_onlyNone Closed
2025-06-25 10:44:09+00:00 Parking Enforcement MTA - Parking Enforcement Dispatchblocking_driveway_cite_onlyNone Closed
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DBI Complaints

Complaints received by the Department of Building Inspection.

Date FiledDate AbatedAssigned DivisionComplaint DescriptionStatusLink
2024-09-05 00:00:00+00:002024-09-10 00:00:00+00:00Housing Inspection ServicesGarage usage Not Active View on DBI
2024-08-14 00:00:00+00:002024-09-05 00:00:00+00:00Housing Inspection ServicesDate last observed: 13-aug-24; time last observed: 0500; floor: first and ; unit: 4222 - won; exact location: main bldg; building type: both plumbing inoperative; illegal unit; illegal change of use; other plumbing; ; additional information: renting space to multiple residents multiple floors multiple units ; Not Active View on DBI
2023-08-31 00:00:00+00:00NoneHousing Inspection ServicesDate last observed: 31-aug-23; time last observed: 5:00; floor: all floors; exact location: main bldg; building type: both illegal unit; work w/o permit; ; additional information: all windows have been replaced with non conforming aluminum windows. city code states that all street facing windows on homes built before 1910 must be replaced “in kind”. these windows were replaced without the benefit of a permit and need to be replaced with wood to conform to city code. additionally the owners are renting out their basement and attic as additional units despite only being permitted as a living room and a family room. there are 4 units over the 4 floors that have been created without the proper permits. ; Not Active View on DBI
2023-02-28 00:00:00+00:00NoneHousing Inspection ServicesBottom unit has no heat. property owner, james bolton, has converted one room into a living room, however they are renting it out as a different rental unit. each level of house has been converted into four different rental units. each room is being rented out to different people. Not Active View on DBI
2022-01-10 00:00:00+00:00NoneBuilding Inspection DivisionDate last observed: 08-jan-22; time last observed: 9am; floor: 1; exact location: garage; building type: commercial/business illegal unit; illegal change of use; other housing; ; additional information: owner has converted garage to "commerical space" under 200811267438 however is renting space to multiple residential tenants. has used modifications under 2015.1217.5402 to created 4+ separate residential units over 4 floors. ; Active View on DBI
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DBI Violations

Building code violations records.

Date FiledDate AbatedItemViolation DescriptionStatus
2024-09-05T00:00:00.000Z garages in houses shall be used only for storage of automobiles. (603 (b) hc) located in the garage of property. return to original intent of space. building sectionnot active
2024-09-05T00:00:00.000Z this notice includes violations for the areas noted. inspector yee investigated the complaint at the subject property and observed violation(s) of the san francisco housing code which are delineated within the notice of violation issued. pertinent observations are as follows: see below. 4222 18th garage building sectionnot active
2024-09-05T00:00:00.000Z inspector comments it is the property owner's responsibility to be present or direct his/her representative to attend, the reinspection as scheduled on this notice of violation for the purpose of providing entry to the inspector of those areas cited within this notice. if the property owner cannot attend the scheduled reinspection (as specified on this notice) it is his/her responsibility to secure a different inspection date and time with the inspector. your cooperation is appreciated. other sectionnot active
2024-08-14T00:00:00.000Z inspector comments it is the property owner's responsibility to be present or direct his/her representative to attend, the reinspection as scheduled on this notice of violation for the purpose of providing entry to the inspector of those areas cited within this notice. if the property owner cannot attend the scheduled reinspection (as specified on this notice) it is his/her responsibility to secure a different inspection date and time with the inspector. your cooperation is appreciated. other sectionnot active
2024-08-14T00:00:00.000Z this notice includes violations for the areas noted. inspector yee investigated the complaint at the subject property and observed violation(s) of the san francisco housing code which are delineated within the notice of violation issued. pertinent observations are as follows: see below. 4220 18th building sectionnot active
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Fire Violations

Fire code violations recorded by the San Francisco Fire Department.

Violation DateDisposition DateAddressViolation DescriptionStatus
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Fire Incidents

Historical fire incident records for the property.

Incident DatePrimary SituationIgnition CauseCivilian Injuries
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Building Permits

Permit records for 4220-4222 18th St.

Permit Creation DateEstimated CostDescriptionStatusPermit Number
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Electrical Permits

Electrical system permits for the building.

Application DateDescriptionStatusPermit Number
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Plumbing Permits

Plumbing system permits for the building.

Application DateDescriptionStatusPermit Number
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Planning Records

Planning records for the property.

DateProject AddressDescriptionApplicant
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Tenant Buyouts

Tenant buyout records for the property.

BlocklotAddressAgreement DateAmountTenants
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How 4220-4222 18th St Compares

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