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Building and Landlord Data Analysis Report

125 Mason St, San Francisco, CA 94102

28
Complaints
0
Fire Incidents
357
311 Calls
1
Permits

Risk Assessment

12
High Risk

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

Our AI predicts there is a 12% chance of no major maintenance issues.
Augrented Insights Report

125 Mason Street is a multi-family residential building in Union Square, classified as an apartment with 15 or more units, though the exact number of units is currently listed as 0. The building has experienced several significant maintenance and safety issues in recent months, including multiple fire safety violations and equipment concerns. Most notably, there have been recurring problems with the elevator (reported to malfunction every four months), ADA accessibility issues at the entrance, and various maintenance problems including electrical outages and plumbing issues in individual units.

Between 2023 and 2024, multiple complaints were filed regarding building systems and safety equipment, including non-functional emergency systems, missing smoke detectors, and an expired elevator permit. The building underwent substantial water damage repairs in 2021 costing approximately $1.4 million, and there have been several fire safety compliance issues requiring attention, including recent violations related to sleeping area requirements, fire alarm systems, and maintenance documentation. The property's maintenance history shows regular updates to essential systems, including boiler replacements and fire safety improvements.

A series of building permits and plumbing work demonstrates ongoing attention to infrastructure maintenance, though some recent complaints suggest that certain systems may require further attention. The building's fire safety record shows a pattern of alarm system activations and some documented violations requiring correction, though many of these issues appear to have been addressed based on "abated" status in violation records. Recent 311 calls around the property have primarily related to street-level issues rather than building-specific problems, though some concerns about the surrounding area are noted. The most recent building complaint from August 2024 highlights continuing concerns about structural issues, though this complaint is currently marked as "Active."

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.

125 Mason St Report Contents

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Building Overview

Renter Risk Rating

This building's risk level is typical for buildings in Union Square.

Building Characteristics

Total units 0
Year built None
Total area 0 sq ft
Floors 0
Tax Abatements Welfare
Building Class A15 - Apartment 15 Units or more
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Key Building Statistics

28
Building Complaints
Number of complaints filed with the Department of Building Inspection in the last 7 years.
14
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.
2
DBI Director Hearings
Number of Director's Hearings held by DBI in the last 7 years.
357
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.

Map and Aerial View of 125 Mason St

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Reviews of 125 Mason St

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125 Mason St Landlord Information

Ownership Data

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

NameAddress
Mason Street Affordable HouJohn Stewart Co, Inc 333 Taylor St San Francisco CA 94102

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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125 Mason 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 125 Mason St

311 Housing Complaints

The table below shows the 311 housing complaints received regarding the conditions at 125 Mason St, as well as requests for service nearby.

OpenedCategoryResponsible AgencyRequest TypeRequest DetailsStatus
2025-07-28 10:36:57+00:00 Street and Sidewalk Cleaning Recology - Abandonedgarbage_and_debrismattress Closed
2025-07-16 14:57:36+00:00 Street and Sidewalk Cleaning Recology - Overflowinggarbage_and_debriscity_garbage_can_overflowing Closed
2025-07-03 14:51:57+00:00 Encampment Healthy Streets Operation CenterencampmentNone Closed
2025-07-01 08:45:23+00:00 Parking Enforcement MTA - Parking Enforcementother_illegal_parkingNone Closed
2025-06-18 12:49:59+00:00 Parking Enforcement MTA - Parking Enforcementother_illegal_parkingNone Open
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DBI Complaints

Complaints received by the Department of Building Inspection.

Date FiledDate AbatedAssigned DivisionComplaint DescriptionStatusLink
2025-05-28 00:00:00+00:002025-05-29 00:00:00+00:00Building Inspection DivisionThe awning is broken, the tubing is damaged and hanging down. (311 sr 101001988180) Not Active View on DBI
2024-08-19 00:00:00+00:00NoneHousing Inspection ServicesI am writing to express my serious concerns regarding the health and safety conditions at my residence, located at 125 mason street.ada violation with the entrance door:the entrance door to the building is in violation of the americans with disabilities act (ada). the computer system at the door is malfunctioning, and the audio component has not been repaired. additionally, the call buttons are not being maintained and are often inoperable, preventing residents from contacting the management office.elevator malfunction:the elevator in the building frequently malfunctions, breaking down every four months. the last repair was completed two months ago, but the elevator continues to operate with an expired permit. this ongoing issue poses a significant safety hazard for residents, particularly those with disabilities.structural issues and safety concerns:the building's structure is deteriorating, and there are numerous safety concerns. these issues include cracks in the walls, sag Not Active View on DBI
2024-02-16 00:00:00+00:002024-02-20 00:00:00+00:00Building Inspection Division125 mason street. --- caller lives on the 10th floor however there is on going construction on one of the unit on the 12th floor. caller stated clearly you can hear the noise & vibration all the way the 10th floor. (311 sr 17897424) Not Active View on DBI
2024-02-05 00:00:00+00:002024-03-29 00:00:00+00:00Housing Inspection ServicesAda button at entrance door not working, and wires exposed. Not Active View on DBI
2024-01-30 00:00:00+00:00NoneHousing Inspection Services¿missing smoke detectors in unit; ¿multiple light fixtures non-functional in unit. Not Active View on DBI
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DBI Violations

Building code violations records.

Date FiledDate AbatedItemViolation DescriptionStatus
2024-02-05T00:00:00.000Z general dilapidation or improper maintenance (1001(b)(13) hc) restore handicap door access switch/ push button to proper working condition. location: common area lobby ---------- other sectionnot active
2024-02-05T00:00:00.000Z inspector comments it is the property owner's responsibility to be present or direct his/her representative to attend the re-inspection as scheduled on this notice of violation for the purpose of providing entry to the inspector of those areas not accessed during the initial inspection as specified, and/or to access to all areas cited within this notice. if the property owner cannot attend the scheduled re-inspection (as specified on this notice) it is his/her responsibility to secure a different inspection date and time with the inspector, and provide all tenants with notification as required by california civil code section 1954 (san francisco housing code section 303(b), if any dwellings, apartment units or guest rooms are to be accessed during the re-inspection. ***correction of violations cited in this notice may require building, plumbing and/or electrical permits. it is the responsibility of the owner to obtain (or have others obtain) any required permits before beginning work that requires permit(s). when applying for a permit, reference the complaint number from this notice of violation. you must have the proper permit signed-off and finalized before the housing insp. returns in order for this violation to be abated.*** other sectionnot active
2024-02-05T00:00:00.000Z this notice includes violations for the areas noted. subject property located at 125 mason st. common areas. building sectionnot active
2023-06-16T00:00:00.000Z inspector comments it is the property owner's responsibility to be present or direct his/her representative to attend the re-inspection as scheduled on this notice of violation for the purpose of providing entry to the inspector of those areas not accessed during the initial inspection as specified, and/or to access to all areas cited within this notice. if the property owner cannot attend the scheduled re-inspection (as specified on this notice) it is his/her responsibility to secure a different inspection date and time with the inspector, and provide all tenants with notification as required by california civil code section 1954 (san francisco housing code section 303(b), if any dwellings, apartment units or guest rooms are to be accessed during the re-inspection. other sectionnot active
2023-06-16T00:00:00.000Z repair sink (1001(f) hc) leaking kitchen faucet observed at time of inspection; repair/ replace faucet in order to void water waste. location: kitchen sink ---------- plumbing and electrical sectionnot active
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Fire Violations

Fire code violations recorded by the San Francisco Fire Department.

Violation DateDisposition DateAddressViolation DescriptionStatus
2025-01-29T00:00:00.000Z125 Mason Stillumination / repair emergency lighting referred to hearing
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Fire Incidents

Historical fire incident records for the property.

Incident DatePrimary SituationIgnition CauseCivilian Injuries
2025-06-25 00:00:00+00:00554 Assist invalidNone0
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Building Permits

Permit records for 125 Mason 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 125 Mason St Compares

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