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Building and Landlord Data Analysis Report

634-636 24th Ave, San Francisco, CA 94121

3
Complaints
0
Fire Incidents
4
311 Calls
0
Permits

Risk Assessment

68
Low Risk

This building shows minimal signs of maintenance issues based on our analysis.

Our AI predicts there is a 68% chance of no major maintenance issues.
Augrented Insights Report

The two-unit residential building at 634-636 24th Avenue in San Francisco's Central Richmond neighborhood has a century-long history dating back to its 1914 construction. The property has faced several regulatory challenges, most notably a series of violations in 2013-2014 regarding unauthorized structures in the rear yard, including a gazebo, which required multiple notices of violation and municipal intervention before being resolved.

Additional compliance issues were documented in 2018 regarding an unauthorized fence structure. More recently, a complaint was filed in July 2023 about an illegal steel shed in the backyard, which remains as an active issue. The building has undergone several legitimate improvements over the years, including a kitchen remodel in 1996 and repairs to earthquake-damaged front stairs in 1989.

Three significant complaints about improper construction practices and safety concerns were filed between 2018-2019, including issues with electrical system access and unsafe structures in the backyard and garage. A mold issue was briefly reported and resolved in 2012, and several parking-related incidents have been documented in the vicinity of the property over the years, including multiple instances of sidewalk parking between 2017-2023. The building's historical maintenance record shows some required foundation work along the south property line in 2003, though that permit is listed as expired.

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 Central Richmond.

Building Characteristics

Total units 2
Year built 1914
Total area 1700 sq ft
Floors 2
Tax Abatements None
Building Class F - Flats & Duplex
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Key Building Statistics

3
Building Complaints
Number of complaints filed with the Department of Building Inspection in the last 7 years.
1
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.
4
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.

Included Addresses

  • 636 24th Ave, San Francisco CA 94121
  • 634 24th Ave, San Francisco CA 94121

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634-636 24th Ave Landlord Information

Ownership Data

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

NameAddress
Moy San & Chui Yau Ng RevocHuang Su Chang Succ Trustee 621 129Th Pl Ne Bellevue WA 98005

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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634-636 24th Ave 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 634-636 24th Ave

311 Housing Complaints

The table below shows the 311 housing complaints received regarding the conditions at 634-636 24th Ave, as well as requests for service nearby.

OpenedCategoryResponsible AgencyRequest TypeRequest DetailsStatus
2025-07-30 19:14:47+00:00 Parking Enforcement MTA - Parking Enforcement Dispatchparking_on_sidewalkNone Closed
2023-04-03 19:09:00+00:00 Parking Enforcement Parking Enforcement Dispatch QueueParking_on_SidewalkGrey - txtModel - 8PBA920 Closed
2022-06-12 09:36:00+00:00 Parking Enforcement Parking Enforcement Dispatch QueueParking_on_SidewalkParking Enforcement Closed
2021-01-29 19:29:00+00:00 Parking Enforcement Parking Enforcement Dispatch QueueBlocking_Driveway_Cite_TowBlack - BMW 320I - 7WSX376 Closed
2019-04-11 07:55:00+00:00 Parking Enforcement Parking Enforcement Dispatch QueueParking_on_SidewalkBlue - Ford Expedition - 4shn096 Closed
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DBI Complaints

Complaints received by the Department of Building Inspection.

Date FiledDate AbatedAssigned DivisionComplaint DescriptionStatusLink
2023-07-31 00:00:00+00:00NoneBuilding Inspection DivisionDate last observed: 29-jul-23; time last observed: 2pm; identity of person performing the work: unknown; floor: ground; unit: illegal st; exact location: rear bldg; building type: residence/dwelling illegal unit; work w/o permit; illegal change of use; other building; ; additional information: backyard has a steel shed 12”x20” and other structure; Not Active View on DBI
2019-12-20 00:00:00+00:00NoneBuilding Inspection DivisionDate last observed: 19-dec-19; time last observed: all day; identity of person performing the work: unknown (homeowner?); floor: street fro; unit: both units; exact location: main bldg; building type: residence/dwelling work w/o permit; other building; ; additional information: building outside of property onto public street; Not Active View on DBI
2019-05-02 00:00:00+00:00NoneHousing Inspection ServicesDate last observed: 23-apr-19; time last observed: ongoing; identity of person performing the work: landlord- joseph ng; exact location: garage; building type: residence/dwelling illegal unit; work w/o permit; work being done in dangerous manner; no access to breakers or fuses; ; additional information: back yard and garage, unsafe structures; Not Active View on DBI
2018-10-09 00:00:00+00:002018-10-30 00:00:00+00:00Building Inspection DivisionDate last observed: 03-oct-18; time last observed: all day; identity of person performing the work: unknown (homeowner?); floor: street fro; exact location: main bldg; building type: residence/dwelling work w/o permit; other building; ; additional information: tool shed constructed on street next to stairway; Not Active View on DBI
2013-02-27 00:00:00+00:00NoneBuilding Inspection DivisionThere are multiple structures covering the backyard. tried to look up permits but did not see any. i think they are running an illegal business out of this location Not Active View on DBI
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DBI Violations

Building code violations records.

Date FiledDate AbatedItemViolation DescriptionStatus
2018-10-09T00:00:00.000Z No description entered Nonenot 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 634-636 24th Ave.

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 634-636 24th Ave Compares

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Showing buildings that are: within 0.5 miles , of similar age (±15 years), of similar size (±50% units)

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