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823-827 Oak St

Hayes Valley, SF 94117 0844033 4 units · 3 fl · 1908

A handful of records on file over the last seven years, and our model sees a moderate chance of more 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 Hayes Valley — not a forecast
At or below average
avg 2.2
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.2.

Rent & eviction protection

Is 823-827 Oak 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 1908
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM1
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 1908
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
Units4
Floors3
Year built1908
Total area6,030 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0844033
Ownership

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

Mailing address
2186 Geary Blvd Ste 314 San Francisco CA 94115
Last sale
April 20, 1995

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.

825 Oak St, San Francisco, CA 94117
827 Oak St, San Francisco, CA 94117
823 Oak St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-story multi-family residential building at 823-827 Oak Street in Hayes Valley, owned by Cooper Howard A & Caplin Ri, was constructed in 1908 and contains four apartment units. The building has experienced several significant maintenance and safety issues over its history, with the most recent notable incident occurring in 2019 when tenants reported unsafe scaffolding installation that partially blocked the building's only entrance/exit. Prior to this, in late 2018, there was a serious plumbing issue with sewage backup in the hallway common area. The building underwent some repairs in 2002 to address back stairs issues and has received multiple street space permits from 2018-2019. Historical records show earlier concerns including a fire incident in 1983 that required roof repairs, while in 2008, multiple violations were documented related to fire safety and building code compliance, including requirements for fire extinguishers, handrails, and egress pathways.

The property has experienced three documented fire incidents, though none resulted in civilian injuries, including a cooking fire confined to a container, a malfunctioning alarm system, and a water/steam leak. Recent maintenance issues have been addressed through regular permits and inspections, with most violations being resolved by 2008. The building's exterior area has required occasional street cleaning and maintenance, as evidenced by multiple 311 calls regarding loose garbage and hazardous materials, with the most recent being in late 2024. A missing side sewer vent cover was reported and resolved in early 2023, and some parking-related complaints have been logged in 2024, though these are unrelated to building conditions.

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

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Risk rating

How 823-827 Oak 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
45thpercentile

Out of 1027 buildings in this neighborhood, 565 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
65%
No DBI
violation
35%
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.

Building permits, owner's portfolio

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

12-Month risk forecast
Moderate failure risk 35%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

823-827 Oak St apartment reviews

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On the map

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The story over time

823-827 Oak St event timeline

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

2025
Electrical Permit Sep 30
Replace the 5 existing federal pacific electric (fpe) circuit breaker panels at the main meter board with new; update grounding
Complete

See all 1 events

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

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Every record we have

Full data for 823-827 Oak St apartments

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

Side by side

How 823-827 Oak St compares to the neighborhood

This building against comparable properties in Hayes Valley. 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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