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Building and Landlord Data Analysis Report

729 Mason St, San Francisco, CA 94108

6
Complaints
1
Fire Incidents
93
311 Calls
0
Permits

Risk Assessment

17
High Risk

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

Our AI predicts there is a 17% chance of no major maintenance issues.
Augrented Insights Report

The 24-unit, 5-story apartment building at 729 Mason Street, owned by Perry Annette & Korn Frank, was constructed in 1920 and has experienced numerous maintenance and safety issues in recent years. Most concerning is the building's ongoing elevator maintenance problem, with multiple complaints documenting failures and dangerous incidents between 2020 and 2025, including a distressing incident in January 2025 where the elevator reportedly fell multiple times and trapped a disabled tenant.

The building's heating system has also been problematic, with complaints about inadequate heat in 2020-2024, including a reported lack of functional heating for two years. Recent safety concerns involve electrical issues in the basement laundry area (2024), and the presence of both sprinkler system violations (2022-2018) and fire alarm system citations (2024, 2017) suggest ongoing fire safety system maintenance challenges.

The building underwent significant infrastructure updates, including a steam boiler replacement in 2014 and window repairs in 2013, but these improvements have not addressed the recurring maintenance issues. Historical records show various compliance issues dating back to the 1980s, though more recent complaints indicate persistent problems with building systems and safety equipment.

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.

729 Mason St Report Contents

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Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Downtown.

Building Characteristics

Total units 24
Year built 1920
Total area 10125 sq ft
Floors 5
Tax Abatements None
Building Class A15 - Apartment 15 Units or more
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Key Building Statistics

6
Building Complaints
Number of complaints filed with the Department of Building Inspection in the last 7 years.
2
Code Violations
Building code violations issued by DBI in the last 7 years.
1
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.
93
311 Calls
Number of 311 calls for this building.
0
Fire Injuries
Number of fire injuries reported by SFFD.
0
Building Permits
Number of building permits issued by DBI.

Map and Aerial View of 729 Mason St

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729 Mason St Landlord Information

Ownership Data

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

NameAddress
Perry Annette & Korn Frank145 Town Center Box 604 Corte Madera CA 94925

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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729 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 729 Mason St

311 Housing Complaints

The table below shows the 311 housing complaints received regarding the conditions at 729 Mason St, as well as requests for service nearby.

OpenedCategoryResponsible AgencyRequest TypeRequest DetailsStatus
2025-06-17 14:26:17+00:00 Street and Sidewalk Cleaning PW - Street and Environmental Servicesgarbage_and_debrisother_loose_garbage_debris_yard_waste Closed
2025-06-16 18:05:36+00:00 Street and Sidewalk Cleaning PW - Street and Environmental Servicesgarbage_and_debrisother_loose_garbage_debris_yard_waste Closed
2025-05-26 16:21:58+00:00 Street and Sidewalk Cleaning Recology - Abandonedgarbage_and_debrismattress Closed
2025-05-18 03:42:29+00:00 Graffiti Public PW - Street and Environmental Servicesnot_offensivepole Closed
2025-05-03 18:00:03+00:00 Street and Sidewalk Cleaning Recology - Abandonedgarbage_and_debrismattress Closed
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DBI Complaints

Complaints received by the Department of Building Inspection.

Date FiledDate AbatedAssigned DivisionComplaint DescriptionStatusLink
2025-01-08 00:00:00+00:00NoneBuilding Inspection DivisionDate last observed: 22-nov-24; time last observed: 1:20pm; identity of person performing the work: sunny day apt llc; floor: 4; unit: anonymous; exact location: main bldg; building type: residence/dwelling insects/rodents; disabled acc: elevator/lift; ; additional information: the elevator hasn't been maintained many years after its safety period expires. it constantly broke down. i was trapped in the elevator on nov.22 and the elevator fell for 20 times. i reported the issue of being trapped and the building manager didn't care. another day, the elevator is completely down for more than a month, and the building said they are still ordering "parts". i became disabled recently and i can't leave my apartment without the elevator. the building manager wasn't going to fix the elevator anytime sooner (there isn't a clear timeline, but if so, it will be a month from now, which makes the elevator out of order for more than two months and is unacceptable.; Not Active View on DBI
2024-09-16 00:00:00+00:00NoneHousing Inspection ServicesI have asked my landlord at least 2 times in the past to fix the heater. i have not had heat for 2 years. Not Active View on DBI
2024-03-20 00:00:00+00:00NoneElectrical Inspection DivisionDate last observed: 18-mar-24; time last observed: 3:00 pm; identity of person performing the work: to gain access to building pls; floor: basement l; exact location: basement; building type: residence/dwelling hazardous appliance; ; additional information: keep anonymous please. please check the laundry area. we noticed one of the plugs of the 2 dryers and 2 washers is burnt. is it ok to still operate the plug? we are unsure of which appliance the plug belongs to but the plug is burnt.; Active View on DBI
2024-03-19 00:00:00+00:00NoneHousing Inspection ServicesDate last observed: 18-mar-24; time last observed: 3:00 pm; identity of person performing the work: to gain access to building pls; floor: basement l; exact location: basement; building type: residence/dwelling hazardous appliance; ; additional information: keep anonymous please. please check the laundry area. we noticed one of the plugs of the 2 dryers and 2 washers is burnt. is it ok to still operate the plug? we are unsure of which appliance the plug belongs to but the plug is burnt.; Not Active View on DBI
2023-05-05 00:00:00+00:00NoneHousing Inspection ServicesDate last observed: 04-may-23; time last observed: 9:57 pm; exact location: main bldg; building type: residence/dwelling disabled acc: elevator/lift; ; additional information: to access the building, please call or text roberto the building maintenance at 415-933-2636. the elevator broke in nov 2022. manager did not post any notice or updates about it. please ask them to fix it. ; Not Active View on DBI
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DBI Violations

Building code violations records.

Date FiledDate AbatedItemViolation DescriptionStatus
2022-06-02T00:00:00.000Z repair defective or non-working elevator (1001(l), 713 hc) restore elevator service at the subject property. other sectionnot active
2022-06-02T00:00:00.000Z inspector comments due to the violations noted, this property constitutes a nuisance per the san francisco housing code section 1001(d) 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 not accessed during the initial inspection as specified, and/or to provide access to all 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, 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 reinspection. other sectionnot active
2022-06-02T00:00:00.000Z this notice includes violations for the areas noted. this notice of violation describes violations found at the common areas of the subject property located at 729 mason st. building sectionnot active
2022-02-07T00:00:00.000Z this notice includes violations for the areas noted. subject property located at 729 mason st. common areas. building sectionnot active
2022-02-07T00:00:00.000Z 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 housing inspector returns in order for this violation to be abated.*** other sectionnot active
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Fire Violations

Fire code violations recorded by the San Francisco Fire Department.

Violation DateDisposition DateAddressViolation DescriptionStatus
2022-12-14T00:00:00.000Z729 Mason Stsprinkler / 5-year service abated
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Fire Incidents

Historical fire incident records for the property.

Incident DatePrimary SituationIgnition CauseCivilian Injuries
2024-12-17 00:00:00+00:00554 Assist invalidNone0
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Building Permits

Permit records for 729 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 729 Mason St Compares

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