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850-852 Diamond St

Noe Valley, SF 94114 6505009 2 units · 2 fl · 1906

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Noe Valley — not a forecast
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Noe Valley average of 1.2.

Rent & eviction protection

Is 850-852 Diamond 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 1906
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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 1906
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 built1906
Total area2,720 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6505009
Ownership

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

Owner name
Mailing address
852 Diamond St San Francisco CA 94114
Last sale

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.

850 Diamond St, San Francisco, CA 94114
852 Diamond St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit multi-family residential building at 850-852 Diamond Street in Noe Valley, owned by Lee Edmond S, is a 2-story flats and duplex structure built in 1906. The building experienced significant issues with lead paint hazards in 2001, when multiple violations were recorded regarding peeling paint that posed potential dangers to occupants, particularly young children and pregnant women. These violations were eventually abated by November 2002. The property underwent several maintenance attempts in 2012, including planned repairs for dryrot in multiple areas (kitchen, living room, bathroom, and laundry), plaster repairs, and kitchen cabinet replacements, though these permits were ultimately cancelled. Electrical work was also initiated in 2012 to relocate a subpanel and replace various electrical components, but this permit was cancelled as well. A completed electrical permit from December 2011 indicates installation of a 10,000-volt house meter.

More recent history shows ongoing maintenance and environmental management issues in the vicinity of the building from 2024 to 2025, including multiple reports of loose garbage debris (January 2024, November 2024) and some street cleaning needs. There were also three parking enforcement calls in March 2024 regarding vehicles blocking driveways or parking illegally near the property. A tree maintenance issue was reported in September 2024 and a graffiti cleanup was completed in June 2024. The building's history suggests previous concerns about interior lead paint hazards, though these were addressed over 20 years ago, and shows ongoing maintenance attention to both building systems and external environmental management.

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

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Risk rating

How 850-852 Diamond 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
53rdpercentile

Out of 1879 buildings in this neighborhood, 883 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
79%
No DBI
violation
21%
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.

Neighborhood location

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month risk forecast
Low failure risk 21%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

850-852 Diamond St apartment reviews

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The story over time

850-852 Diamond St event timeline

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

2026
311 Request Feb 14
Not offensive
pole

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 850-852 Diamond St apartments

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

Side by side

How 850-852 Diamond 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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