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Building and Landlord Data Analysis Report

18-20 Tiffany Ave, San Francisco, CA 94110

3
Complaints
6
Fire Incidents
326
311 Calls
2
Permits

Risk Assessment

30
High Risk

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

Our AI predicts there is a 30% chance of no major maintenance issues.
Augrented Insights Report

The three-story multi-family residential building at 18-20 Tiffany Avenue in Bernal Heights, constructed in 1906, consists of two units owned by Rebecca Naul and Danie Olasky. The property has undergone several significant improvements in recent years, including a comprehensive electrical upgrade in December 2022 that installed a dual-meter system with 200-amp service, and HVAC improvements in April 2023 with multiple mini-split heat pump installations throughout the building. Unit #20 received a kitchen remodel in late 2022, and various building maintenance issues have been addressed over time, including window replacements in 2014 and front stairs repairs in 2010. The building has experienced multiple maintenance and safety challenges, particularly between 2018-2019, when multiple complaints were filed regarding water intrusion, mold, and security concerns.

A notable cluster of violations was recorded in February 2019, including issues with water damage, mold/mildew, lead paint hazards, and security concerns related to emergency egress. These violations were officially abated by April 2019. Earlier issues included termite-related structural concerns in 2010 and questions about flooring safety in 2014. The property underwent various mandatory repairs following violations, such as staircase repairs in 2010 and addressing termites in 2021.

Recent 311 calls from late 2024 have primarily concerned sidewalk parking violations and debris issues, though these appear to be unrelated to building maintenance concerns. The building's recent maintenance record shows attention to infrastructure improvements, with completed permits totaling significant investments in building systems and living spaces. The duplex is now equipped with modern electrical systems and climate control, suggesting improved living conditions. However, the historical record indicates periods of maintenance challenges that required intervention from housing inspection services, particularly regarding moisture control and safety features.

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.

18-20 Tiffany Ave Report Contents

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Building Overview

Renter Risk Rating

This building is in the riskiest 10% of buildings in Bernal Heights.

Building Characteristics

Total units 2
Year built 1906
Total area 1855 sq ft
Floors 3
Tax Abatements Home Owners
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.
7
Code Violations
Building code violations issued by DBI in the last 7 years.
6
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.
326
311 Calls
Number of 311 calls for this building.
0
Fire Injuries
Number of fire injuries reported by SFFD.
2
Building Permits
Number of building permits issued by DBI.

Included Addresses

  • 20 Tiffany Ave, San Francisco CA 94110
  • 18 Tiffany Ave, San Francisco CA 94110

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18-20 Tiffany Ave Landlord Information

Ownership Data

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

NameAddress
Naul Rebecca & Olasky Danie20 Tiffany Ave San Francisco CA 94110

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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18-20 Tiffany 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 18-20 Tiffany Ave

311 Housing Complaints

The table below shows the 311 housing complaints received regarding the conditions at 18-20 Tiffany Ave, as well as requests for service nearby.

OpenedCategoryResponsible AgencyRequest TypeRequest DetailsStatus
2025-07-23 09:52:20+00:00 Street and Sidewalk Cleaning PW - Street and Environmental Servicesgarbage_and_debrisother_loose_garbage_debris_yard_waste Closed
2025-07-18 19:45:53+00:00 Street and Sidewalk Cleaning PW - Street and Environmental Servicesgarbage_and_debrisother_loose_garbage_debris_yard_waste Closed
2025-07-18 17:59:48+00:00 Street and Sidewalk Cleaning Recology - Abandonedgarbage_and_debrisother_bagged_boxed_contained_garbage Closed
2025-07-18 13:48:48+00:00 Parking Enforcement MTA - Parking Enforcement Dispatchparking_on_sidewalkNone Closed
2025-07-13 17:02:47+00:00 Street and Sidewalk Cleaning Recology - Abandonedgarbage_and_debrisshopping_cart Closed
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DBI Complaints

Complaints received by the Department of Building Inspection.

Date FiledDate AbatedAssigned DivisionComplaint DescriptionStatusLink
2019-05-31 00:00:00+00:00NoneHousing Inspection ServicesR3 is not being maintained properly---unsafe (electrical, plumbing issues) Not Active View on DBI
2019-02-11 00:00:00+00:002019-04-23 00:00:00+00:00Housing Inspection ServicesWater intrusion into the unit. there's also mold and mildew. Not Active View on DBI
2018-12-13 00:00:00+00:00NoneHousing Inspection ServicesMold in bedroom, livng room closet, and window areas. Not Active View on DBI
2014-08-18 00:00:00+00:00NoneHousing Inspection ServicesFlooring doesn't seem safe. not sure if illegal in-law unit (20 tiffany) Not Active View on DBI
2014-08-15 00:00:00+00:00NoneBuilding Inspection DivisionFlooring doesn't seem safe. not sure if illegal in-law unit (20 tiffany) Not Active View on DBI
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DBI Violations

Building code violations records.

Date FiledDate AbatedItemViolation DescriptionStatus
2019-02-11T00:00:00.000Z repair exterior doors (706 hc) the exterior door for the front and rear are difficult to open and close. repair/replace door as require. building sectionnot active
2019-02-11T00:00:00.000Z 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 provide 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. 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. you can reach inspector wu @ 415-575-6844 or by email at timothy.wu@sfgov.org. other sectionnot active
2019-02-11T00:00:00.000Z provide manual release at sleeping room security bars or remove to provide emergency egress to at least one window (706b (7)(i)) provide manual release for security bars or remove to provide emergency egress for bedroom window. fire sectionnot active
2019-02-11T00:00:00.000Z lead hazard warning: disturbing lead based paint can be extremely dangerous to dwelling occupants and visitors, particularly to young children, pregnant women, pets, and to people performing work on the premises. for interior or exterior paint removal : always wet the surface, contain and properly dispose of leaded paint. if you are unsure whether the paint is leaded, you should test it prior to performing any work. if the paint is found to contain lead, you should consult with an expert about appropriate procedures. proper containment and 3-day notification is required for exterior jobs of more than 10 sq.ft. (sec.327, sfebc) informational packets are available at (415) 558-6088. you can contact the san francisco childhood lead poisoning prevention program at: (415) 252-3800 for free advice. if you cause lead dust to be created, you could be liable for any illness caused by the dust. ordinance #446-97. interior surfaces sectionnot active
2019-02-11T00:00:00.000Z this notice includes violations for the areas noted. 18 tiffany ave. building sectionnot 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 18-20 Tiffany 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
659700318 Tiffany AvenueNoneNoneNone
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How 18-20 Tiffany Ave Compares

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