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800-804 Bay St

Russian Hill, SF 94109 0026039 2 units · 2 fl · 1900

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Russian Hill — not a forecast
At or below average
avg 1.9
1
FewerMore

This building has 1 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 800-804 Bay 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
N/A
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 1900
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
Units2
Floors2
Year built1900
Total area1,962 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0026039
Ownership

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

Owner name
Mailing address
1288 Columbus Ave #275 San Francisco CA 94133
Last sale
September 25, 2019

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.

800 Bay St, San Francisco, CA 94109
804 Bay St, San Francisco, CA 94109
2601 Hyde St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The two-unit, two-story multi-family residential building at 800-804 Bay Street in San Francisco's Russian Hill neighborhood, owned by Elise H. Yamaguchi, has undergone significant recent activity that warrants attention. Most concerning is an active building violation filed in December 2024 regarding unauthorized demolition work on the second floor unit, involving removal of all interior partitions, wallboard, and fixtures, along with unpermitted structural modifications including new posts and beams. This follows a pattern of recent modifications, with permits filed in 2023 for both residential unit remodeling (including a new bathroom, kitchen cabinets, electrical, HVAC, and plumbing work) and a change of use conversion from dry cleaner drop-off/pickup to convenience retail, repair floor, and removal of damaged walls and ceilings. The building's systems have seen substantial updates in 2019-2022, including the installation of a new boiler and hydronic system, new electrical service, and completion of the 2010 reroofing project.

The property has experienced several regulatory and safety issues in recent months, including multiple complaints about unauthorized work, an unpermitted retail operation, and various building violations. While there have been no recent fire incidents causing injuries to civilians, the building had a documented smoke scare incident and minor cooking fire contained to a container. The surrounding area has faced typical urban challenges as evidenced by 311 calls throughout 2024, including issues with illegal postings, graffiti, and sidewalk defects, though these are not directly related to the building's condition or ownership. The property has also engaged in licensing processes, with records indicating both approved and on-hold referrals for a liquor license and limited restaurant use, suggesting aspirations for expanding commercial operations beyond the existing retail space.

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

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Risk rating

How 800-804 Bay 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
99thpercentile

Out of 1133 buildings in this neighborhood, 11 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
96%
No DBI
violation
4%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building permits (past 7 years)

Number of permits pulled at this address — construction or renovation activity over 7 years.

12-Month risk forecast
Low failure risk 4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

800-804 Bay St apartment reviews

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On the map

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The story over time

800-804 Bay St event timeline

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

2026
Plumbing Permit Jun 08
Work category: 1p; install radiant floor heating install heated floor system install one combi boiler install flue
Issued
Plumbing PermitApr 23
2 shower pan installations. shower pan only.

See all 25 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 800-804 Bay St apartments

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

Side by side

How 800-804 Bay St compares to the neighborhood

This building against comparable properties in Russian Hill. 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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