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636-640 Washington St

Financial District North, SF 94111 0195006 7 units · 3 fl · 1907

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 Financial District North
At or below average
avg 3.2
0
FewerMore

This building has 0 novs (7y), at or below the Financial District North average of 3.2.

Rent & eviction protection

Is 636-640 Washington 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 1907
2 or more units
7 units
Property type
Multi-Family Residential
Zoning
CCB
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
Units7
Floors3
Year built1907
Total area6,300 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0195006
Ownership

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

Owner name
Hui Fmly Revoc Tr
Mailing address
Hui Myland K & Carolyn D Tt 158 Valparaiso St San Francisco CA 94133
Last sale
051396

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.

636 Washington St, San Francisco, CA 94111
638 Washington St, San Francisco, CA 94111
640 Washington St, San Francisco, CA 94111
Augrented Insights
Initial analysis

The three-story multi-family residential building at 636-640 Washington Street, owned by Hui Fmly Revoc Tr, comprises 7 units and was constructed in 1907. The property has undergone significant recent improvements, including major tenant improvements in 2023 costing $181,000 to rebuild a mezzanine floor, basement staircase, and ADA bathroom, along with a current $30,000 project issued in August 2024 to replace the storefront frame and glass and add an ADA entrance. Of particular concern are recurring fire safety issues, with multiple violations between 2020 and 2024, including blocked exits and various fire code violations, though most have been promptly corrected. The building has also experienced administrative challenges with fire safety compliance, resulting in violations in mid-2024 related to fire command center features, extinguishers, and doors, though records indicate many of these have been abated. Historic violations from 2000-2013 included issues with stairs, smoke detectors, and other safety systems, though these were resolved. Recent infrastructure work includes plumbing and electrical upgrades as of December 2023, while routine inspections and responding to violations, particularly regarding fire safety, have been a recurring theme in the building's maintenance record. The property is also subject to commercial parking garage renewal processes, indicating an active and ongoing relationship with city planning and regulatory requirements.

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

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Risk rating

How 636-640 Washington 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
52th percentile

Out of 145 buildings in this neighborhood, 70 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
58%
No DBI
violation
42%
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.

Neighborhood location

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

12-Month severity forecast
No violation 34.4%
Moderate concern 47.0%
Severe concern 18.6%
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

636-640 Washington St event timeline

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

2024
Planning Record Aug 23
Reconfigure storefront for ADA compliance. Replace (e) storefront frame and glass. Add new ADA entrance.
Closed
Building PermitAug 20
Replace storefront frame & glass. add new ada entrance

See all 6 events

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

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Every record we have

Full data for 636-640 Washington 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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