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435-437 Oak St

Hayes Valley, SF 94102 0840030 2 units · 2 fl · 1900

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Hayes Valley
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.3.

Rent & eviction protection

Is 435-437 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 1900
2 or more units
2 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.

Building characteristics
Units2
Floors2
Year built1900
Total area3,988 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0840030
Ownership

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

Owner name
435-437 Oak Street Llc
Mailing address
437 Oak St San Francisco CA 94102
Last sale
012918

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

437 Oak St, San Francisco, CA 94102
435 Oak St, San Francisco, CA 94102
Augrented Insights
AI summary

The two-unit residential building at 435-437 Oak Street in Hayes Valley, owned by 435-437 Oak Street LLC, is a 2-story flats and duplex structure built in 1900. The property has undergone several significant improvements over recent years, with the most recent major work being a re-roofing project completed in 2020 costing $15,000. In 2016, substantial renovations were performed, including foundation work (replacing north and east brick foundations and strengthening others at a cost of $80,000), creation of approximately 700 square feet of non-structural common space including a TV/game room and laundry facilities ($45,000), and comprehensive plumbing updates including replacement of house trap, sewer line work, and bathroom fixtures ($15,000). These improvements also involved electrical upgrades with the installation of a dedicated subpanel and various electrical fixtures for unit 437.

The building's maintenance history includes one building violation from 2005 regarding improperly installed rain water leaders, which was promptly resolved. A complaint was filed in 2016 regarding unpermitted construction work, though this was quickly addressed. The property experienced some infrastructure challenges in 2005 related to drainage issues affecting the basement and garage of a neighboring property, which were resolved within approximately six weeks. Recent service calls to the property (2023) have primarily involved parking issues and street cleanliness matters, which are typical for urban environments. The property records also indicate a tenant buyout at 437 Oak Street in 2016, with the payment of $17,250 to one tenant.

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Risk rating

How 435-437 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

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
91th percentile

Out of 1027 buildings in this neighborhood, 92 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building size

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

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 61.5%
Moderate concern 14.5%
Severe concern 24.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

435-437 Oak St event timeline

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

2026
311 Request Jan 16
Garbage and debris
christmas tree

See all 3 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 435-437 Oak St apartments

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

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