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Building and Landlord Data Analysis Report

231-235 Diamond St, San Francisco, CA 94114

1
Complaints
0
Fire Incidents
0
311 Calls
3
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 three-unit property at 231-235 Diamond Street, owned by Christopher Sim, is a two-story multi-family residential building constructed in 1910 in the Eureka Valley/Dolores Heights neighborhood. The building has undergone several significant improvements over the past decades, with the most recent being a completed re-roofing project in November 2023 costing $15,000. A major structural upgrade was completed in December 2021, involving a new site retaining wall and voluntary seismic retrofit of the front garage, with a substantial investment of $100,000.

Historical records show various maintenance work including concrete repairs in the backyard in 2001, and multiple instances of sheetrock repairs in 1992 and re-roofing work in 1990. The building has had minimal violations and complaints over the years, with only one notable security violation in 2002 regarding self-closing devices and primary locking mechanisms on exterior doors, which was resolved within two months. A 2022 complaint about unpermitted construction work was filed but has since been marked as not active.

The property has undergone routine housing inspections in 1996 and 2002, both of which were resolved. The Planning Department approved a new retaining wall construction within the rear yard, confirming compliance with local regulations and noting no related complaints. A fire-related complaint from 2008 was investigated and found to have no merit. Overall, the building's records indicate regular maintenance and compliance with safety requirements, with no significant ongoing issues noted.

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 3
Year built 1910
Total area 2670 sq ft
Floors 2
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.
0
311 Calls
Number of 311 calls for this building.
0
Fire Injuries
Number of fire injuries reported by SFFD.
3
Building Permits
Number of building permits issued by DBI.

Included Addresses

  • 235 Diamond St, San Francisco CA 94114
  • 231 Diamond St, San Francisco CA 94114
  • 233 Diamond St, San Francisco CA 94114

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231-235 Diamond St Landlord Information

Ownership Data

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

NameAddress
Sim ChristopherDougherty Anisa V 1240 7Th Ave Apt 16 San Francisco CA 94122

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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231-235 Diamond 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 231-235 Diamond St

311 Housing Complaints

The table below shows the 311 housing complaints received regarding the conditions at 231-235 Diamond St, as well as requests for service nearby.

OpenedCategoryResponsible AgencyRequest TypeRequest DetailsStatus
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DBI Complaints

Complaints received by the Department of Building Inspection.

Date FiledDate AbatedAssigned DivisionComplaint DescriptionStatusLink
2022-12-19 00:00:00+00:00NoneBuilding Inspection DivisionThe address given --- caller believes there is a private construction project that has no permits. no permits have ever been posted at the location. (311 sr 16194494) Not Active View on DBI
2002-11-25 00:00:00+00:002003-01-29 00:00:00+00:00Housing Inspection ServicesRoutine Not Active View on DBI
1996-08-21 00:00:00+00:001996-08-21 00:00:00+00:00Housing Inspection ServicesRoutine inspection Not Active View on DBI
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DBI Violations

Building code violations records.

Date FiledDate AbatedItemViolation DescriptionStatus
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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 231-235 Diamond 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 231-235 Diamond St Compares

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Compare with buildings in Eureka Valley/Dolores Heights:
Showing buildings that are: within 0.5 miles , of similar age (±15 years), of similar size (±50% units)

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