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636 Bush St

Downtown, SF 94108 0272005 17 units · 6 fl · 1919

A handful of records on file over the last seven years, and our model predicts a high 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 Downtown — not a forecast
Above average
avg 6.9
8
FewerMore

This building has 8 novs (7y), above the Downtown average of 6.9.

Rent & eviction protection

Is 636 Bush 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 1919
2 or more units
17 units
Property type
Multi-Family Residential
Zoning
RC4
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 1919
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
Units17
Floors6
Year built1919
Total area7,560 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0272005
Ownership

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

Mailing address
Nicholas Raggio 276 Cascade Dr Mill Valley CA 94941
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

The six-story, 17-unit building at 636 Bush Street, built in 1919 and currently owned by the Nicholas O Raggio Revocable Trust, has experienced several significant events in recent years that merit attention. Most notably, in February 2024, the property faced multiple violations related to building safety and maintenance, including issues with smoke detectors, carbon monoxide alarms, and structural maintenance documentation. These violations were addressed during a reinspection process completed by March 2024. The building has also undergone recent safety system upgrades, including the installation of a new smoke detector on the 6th floor and an upgraded fire alarm system completed in August 2024 to comply with San Francisco Fire Code requirements.

The property has experienced four fire-related incidents in the past seven years, though none involved civilian injuries or fatalities; two recorded incidents in 2023-24 were related to false alarms or system malfunctions. The building's maintenance history shows regular interaction with city services, including 311 service requests (totaling 189 over seven years) primarily concerning parking issues in 2026 and two housing-related complaints - one in 2024 regarding common areas and another in 2021 related to boiler permit renewal. While the most recent violations and required safety system upgrades indicate attention to fire safety requirements, the building's record demonstrates ongoing maintenance challenges that have required intervention by city inspectors and the Department of Building Inspection.

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

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Risk rating

How 636 Bush 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
39thpercentile

Out of 448 buildings in this neighborhood, 273 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
14%
No DBI
violation
86%
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.

Number of units

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month risk forecast
High failure risk 86%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

636 Bush St apartment reviews

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On the map

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The story over time

636 Bush St event timeline

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

2026
311 Request Aug 04
Blocked sidewalk
other scooter bike
311 RequestJul 29
Other illegal parking

See all 23 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 636 Bush St apartments

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

Side by side

How 636 Bush St compares to the neighborhood

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

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