Free SF apartment background check

101-111 Carl St

Cole Valley/Parnassus Heights, SF 94117 1272001 9 units · 3 fl · 1904

This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Cole Valley/Parnassus Heights — not a forecast
Above average
avg 0.9
27
FewerMore

This building has 27 novs (7y), above the Cole Valley/Parnassus Heights average of 0.9.

Augrented Insights
Initial analysis

The three-story, 9-unit building at 101-111 Carl Street, constructed in 1904 and currently owned by Shelley Mainzer Lvg Tr, has experienced numerous maintenance and safety issues over the past seven years. Most notably, in 2022-2023, there were multiple complaints and violations related to building maintenance, including problems with windows, doors, ceilings, plumbing, and interior surfaces. A concerning pattern of building condition issues emerged, with documented problems including electrical hazards, faulty windows, and deteriorating interior surfaces. The building's systems have undergone various modifications, including recent antenna and power equipment changes in 2025, while significant interior work was completed in 2022. A notable infestation incident occurred in 2020 involving rodents, with reports indicating that while temporary measures were taken, there were recurring pest issues. The property has generated a substantial volume of service requests, totaling 677 in the past seven years, with a recent cluster of sidewalk-related issues in 2026. While some complaints and violations have been resolved, including multiple interior repair issues in 2023, the building's history shows a pattern of recurring maintenance challenges that have required multiple inspections and corrections over time.

AI-generated · may contain errors · check the source data tables below

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Rent & eviction protection

Is 101-111 Carl St rent-controlled?

San Francisco's Rent Ordinance caps rent increases and provides eviction protection for most residential units built before 1979 with 2+ units. Here's how this building scores.

Built before 1979
Built 1904
2 or more units
9 units
Property type
Multi-Family Residential
Zoning
NC1
Likely rent-controlled. Building age and unit count suggest this property falls under San Francisco's Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1904
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units9
Floors3
Year built1904
Total area12,450 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1272001
Ownership

Registered owner per SF Assessor-Recorder (secured roll).

Mailing address
Mainzer Shelley Trustee 2845 Pierce St Apt 304 San Francisco CA 94123
Last sale
November 30, 2021

Landlord portfolio

Other SF properties this owner holds, with a risk rating for each.

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

905 Cole St, San Francisco, CA 94117
111 Carl St, San Francisco, CA 94117
101 Carl St, San Francisco, CA 94117
103 Carl St, San Francisco, CA 94117
901 Cole St, San Francisco, CA 94117
903 Cole St, San Francisco, CA 94117
Risk rating

How 101-111 Carl St's risk score is calculated

We trained a model on 7 years of SF DBI inspection data — notice of violation filings, complaint history, and owner track records. It estimates the probability that DBI inspectors will issue a Notice of Violation at this address in the next 12 months. Lower % = safer.

What the score means for you

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
0thpercentile

Out of 526 buildings in this neighborhood, 526 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
12%
No DBI
violation
88%
DBI violation
likely
Model explanation

What's driving this score

The three data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

12-Month risk forecast
High failure risk 88%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

101-111 Carl St apartment reviews

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On the map

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The story over time

101-111 Carl St event timeline

Violations, complaints, fire incidents, permits, and buyouts — most recent records in order.

2026
311 Request Sep 14
Not offensive
sidewalk structure
311 RequestSep 04
Not offensive

See all 30 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 101-111 Carl St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 101-111 Carl St compares to the neighborhood

This building against comparable properties in Cole Valley/Parnassus Heights. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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