Free SF apartment background check

1230 Green St

Russian Hill, SF 94109 0123030 3 units · 3 fl · 1911

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Russian Hill
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 1230 Green 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 1911
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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 1911
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
Units3
Floors3
Year built1911
Total area2,553 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0123030
Ownership

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

Owner name
Mailing address
19320 7th St East Sonoma CA 95476
Last sale
061120

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-unit, three-story residential building at 1230 Green Street in San Francisco's Russian Hill neighborhood, owned by David J. Oster, has been standing since 1911 and has experienced several significant events in recent years. The most pressing current concern is a sewage backup issue reported through the 311 system in December 2025, which remains open as of the latest data. There have been recurring issues with illegal parking and driveway blocking, with three documented incidents between March and July 2026, two of which resulted in citations being issued. A notable building inspection complaint was filed in July 2026 regarding damaged exterior elements, though this is currently listed as not active.

Looking back slightly further, the building underwent some exterior maintenance work in late 2019 that raised neighbor concerns about potential paint drift affecting the adjacent property at 43 Russell Street, though it's unclear if this complaint was ultimately resolved. The Department of Building Inspection (DBI) has recorded only one formal complaint in the past seven years, suggesting relatively few structural or maintenance issues have been reported. While the building appears to be generally well-maintained based on available data, the recent sewage backup issue and multiple parking-related incidents suggest some amenities and access-related challenges in the immediate vicinity.

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

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Risk rating

How 1230 Green 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

Grade A–B — Low risk

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

Grade C — Moderate risk

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

Grade D–F — High risk

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

Neighborhood percentile
26th percentile

Out of 1133 buildings in this neighborhood, 838 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
53%
No DBI
violation
47%
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.

Neighborhood location

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

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

12-Month severity forecast
No violation 48.2%
Moderate concern 34.1%
Severe concern 17.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

1230 Green St event timeline

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

2026
311 Request Jul 28
Blocking driveway cite only
Parking Enforcement
311 RequestJul 19
Blocking driveway cite tow

See all 7 events

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

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Every record we have

Full data for 1230 Green St apartments

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

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

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