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630-634 Oak St

Hayes Valley, SF 94117 0828008 3 units · 3 fl · 1908

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 630-634 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
3 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.

Building characteristics
Units3
Floors3
Year built1908
Total area5,982 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0828008
Ownership

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

Owner name
Peter Van Der Sterre 2018 R
Mailing address
Van Der Sterre Peter Truste 634 Oak St San Francisco CA 94117
Last sale
051402

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.

630 Oak St, San Francisco, CA 94117
632 Oak St, San Francisco, CA 94117
634 Oak St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-unit multi-family residential building at 630-634 Oak Street in Hayes Valley, owned by Peter Van Der Sterre since 2018, is a three-story flats and duplex structure built in 1908. The property has undergone several significant improvements in recent years, including the installation of a Mitsubishi heat pump cooling system for three rooms in 2023 and a 5.76 kW solar PV system with 16 modules in 2022. Plumbing improvements include a water heater installation for radiant heat in 2014, though this permit expired, and work on drain lines and a new floor sink in 2014. The building's maintenance history shows attention to structural issues, with work on stairs and decks in 2008 to address dry rot, and an attempted rear garage structural repair in 2013 that was ultimately cancelled.

The building has a history of routine safety inspections, with notable issues identified in 2003 and 2008 regarding stairs, fire safety equipment, and various building maintenance items; however, all violations were officially abated by October 2008. Since then, the property has generally maintained compliance with safety requirements, though there was an expired plumbing permit in 2014 for a water heater installation. Recent activity at the property has primarily involved parking enforcement matters, with multiple parking violations recorded between 2024-2025, suggesting ongoing challenges with driveway access. A damaged side sewer vent cover was reported in September 2024 and remains in open status. The building's documented improvements, particularly the recent HVAC and solar installations, indicate ongoing maintenance and upgrading of the property, though there are some historical maintenance issues that prospective residents should be aware of.

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

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Risk rating

How 630-634 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
42th percentile

Out of 1027 buildings in this neighborhood, 596 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
62%
No DBI
violation
38%
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.

Building size

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

Estimated permit spend (past 7 years)

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

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 61.0%
Moderate concern 21.3%
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.
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The story over time

630-634 Oak St event timeline

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

2023
Plumbing Permit Apr 06
Work category: 1m; install mitsubishi heat pump cooling system to serve 3 - rooms and install 3 - new condensate drain lines.
Complete

See all 2 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 630-634 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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