Building and Landlord Data Analysis Report

671-673 9th Ave, San Francisco, CA 94118

Complaints

Fire Incidents

311 Calls

Permits

Risk Assessment

Moderate Risk

This building shows some maintenance concerns that warrant attention.

Our AI predicts there is a 65% chance of no major maintenance issues.

Augrented Insights Report

The two-unit residential building located at 671-673 9th Avenue in San Francisco's Inner Richmond neighborhood is a two-story flats and duplex structure owned by Helen Leong and built in 1900. The building's documented history reveals several maintenance and safety issues over the past three decades.

The most recent building concern was filed in February 2017, citing mold in the bathroom, while an earlier complaint from 1997 reported multiple issues including a cracked door, security concerns with the front door, deteriorated windows, improper sink installation, and a cracked window. One significant incident occurred in 1994 when there was an unlawful conversion complaint regarding three dwelling units on two floors, though this was officially abated in early 1995.

Infrastructure maintenance records show a plumbing issue in February 2012 involving a waterline replacement at the sidewalk, and a tree root-related sidewalk problem reported in May 2012 that was resolved by February 2014. An earlier permit from 1994 indicates that a shed at the rear of the building was subsequently legalized. The building's documented history suggests a pattern of maintenance issues that have occurred over time, with most recent concerns focusing on moisture-related problems.

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.

671-673 9th Ave Report Contents

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Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Inner Richmond.

65% chance of no major maintenance issues.

Building Characteristics

Total units	2
Year built	1900
Total area	1900 sq ft
Floors	2
Tax Abatements	None
Building Class	F - Flats & Duplex

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Key Building Statistics

Building Complaints

Number of complaints filed with the Department of Building Inspection in the last 7 years.

Code Violations

Building code violations issued by DBI in the last 7 years.

Fire Incidents

Total number of fire incidents reported at this building.

DBI Director Hearings

Number of Director's Hearings held by DBI in the last 7 years.

311 Calls

Number of 311 calls for this building.

Fire Injuries

Number of fire injuries reported by SFFD.

Building Permits

Number of building permits issued by DBI.

Included Addresses

673 09th Ave, San Francisco CA 94118
671 09th Ave, San Francisco CA 94118

Map and Aerial View of 671-673 9th Ave

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671-673 9th Ave Landlord Information

Ownership Data

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

Name	Address
Leong Helen	2178 17th Ave San Francisco CA 94116

Landlord Portfolio

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

Address	Units	Code Violations	Risk 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 Filed	Case Title	Court	Link

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671-673 9th Ave Rent Control Status

Year Built

Built before 1979

Units

More than 1 unit

Rent Board Registration

Not applicable

Additional Info

N/A

Year Built	Units	Rent Board Registration	Additional Info
Before 1979	>1 unit	N/A	N/A

Rent Controlled. Units should be rent controlled and subject to eviction protection under San Francisco's Rent Ordinance.

Full Building Data for 671-673 9th Ave

311 Housing Complaints

The table below shows the 311 housing complaints received regarding the conditions at 671-673 9th Ave, as well as requests for service nearby.

Opened	Category	Responsible Agency	Request Type	Request Details	Status
2025-07-13 15:54:04+00:00	Parking Enforcement	MTA - Parking Enforcement Dispatch	blocking_driveway_cite_only	None	Closed
2025-02-06 07:13:20+00:00	Street and Sidewalk Cleaning	Recology - Abandoned	garbage_and_debris	other_bagged_boxed_contained_garbage	Closed

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DBI Complaints

Complaints received by the Department of Building Inspection.

Date Filed	Date Abated	Assigned Division	Complaint Description	Status	Link
2017-02-03 00:00:00+00:00	None	Housing Inspection Services	Mold in bathroom.	Not Active	View on DBI
1997-09-23 00:00:00+00:00	1997-10-28 00:00:00+00:00	Housing Inspection Services	Crack in door; no front door deadbolt; windows are wood rotted away; sink in bathroom is not properly installed; window has a crack.	Not Active	View on DBI
1994-05-11 00:00:00+00:00	1995-02-06 00:00:00+00:00	Housing Inspection Services	Illegal conversion 3 dwelling units on 2 floors of occupancy.	Not Active	View on DBI

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DBI Violations

Building code violations records.

Date Filed	Date Abated	Item	Violation Description	Status

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Fire Violations

Fire code violations recorded by the San Francisco Fire Department.

Violation Date	Disposition Date	Address	Violation Description	Status

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Fire Incidents

Historical fire incident records for the property.

Incident Date	Primary Situation	Ignition Cause	Civilian Injuries

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Building Permits

Permit records for 671-673 9th Ave.

Permit Creation Date	Estimated Cost	Description	Status	Permit Number

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Electrical Permits

Electrical system permits for the building.

Application Date	Description	Status	Permit Number

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Plumbing Permits

Plumbing system permits for the building.

Application Date	Description	Status	Permit Number

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Planning Records

Planning records for the property.

Date	Project Address	Description	Applicant

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Tenant Buyouts

Tenant buyout records for the property.

Blocklot	Address	Agreement Date	Amount	Tenants

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How 671-673 9th Ave Compares

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671-673 9th Ave, San Francisco, CA 94118

Risk Assessment

671-673 9th Ave Report Contents

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Building Overview

Renter Risk Rating

Building Characteristics

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Key Building Statistics

Included Addresses

Map and Aerial View of 671-673 9th Ave

Street Map View

Satellite View

Reviews of 671-673 9th Ave

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671-673 9th Ave Landlord Information

Contact Details

Ownership Data

Property Portfolio

Landlord Portfolio

Court Cases

Landlord Court Records

671-673 9th Ave Rent Control Status

Year Built

Units

Rent Board Registration

Additional Info

Full Building Data for 671-673 9th Ave

Complaints

311 Housing Complaints

DBI Complaints

Building Code Violations

DBI Violations

Fire Records

Fire Violations

Fire Incidents

Permits

Building Permits

Electrical Permits

Plumbing Permits

Planning Records

Planning Records

Tenant Buyouts

Tenant Buyouts

How 671-673 9th Ave Compares

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