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631-641 Jackson St

Financial District North, SF 94133 0194031 14 units · 3 fl · 1907

This building has significantly more problems than most nearby buildings. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Financial District North
At or below average
avg 3.2
1
FewerMore

This building has 1 novs (7y), at or below the Financial District North average of 3.2.

Rent & eviction protection

Is 631-641 Jackson 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
14 units
Property type
Multi-Family Residential
Zoning
CVR
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
Units14
Floors3
Year built1907
Total area12,500 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0194031
Ownership

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

Owner name
Hing Yip Co Inc
Mailing address
740 Jackson St San Francisco CA 94133
Last sale
020210

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.

637 Jackson St, San Francisco, CA 94133
631 Jackson St, San Francisco, CA 94133
641 Jackson St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The property at 631-641 Jackson Street is a three-story, 14-unit multi-family residential building constructed in 1907, currently owned by Hing Yip Co Inc. The building has undergone several significant transformations in recent years, including a change of use from a flower shop to a sweet retail shop in 2023, and previously to a coffee baking shop limited restaurant in 2017, with corresponding interior improvements. Major maintenance work has included reroofing projects in 2016-2018, installation of an automatic fire suppression system in 2010, and multiple plumbing updates related to grease trap installations and drainage issues.

The building has a documented history of fire safety concerns, with multiple fire code violations noted between 2006 and 2023, including recent violations in December 2023 related to extinguishers and Class K cooking equipment. There have been several instances of vacant commercial space requiring monitoring under the Vacant Storefront Ordinance between 2018 and 2022. Notable infrastructure issues were reported in 2016 involving drainage problems that affected neighboring properties, though these were subsequently addressed. The property has also experienced recurring issues with garbage and debris management, as evidenced by multiple 311 calls throughout 2024, along with some noise complaints. Historical violations from 2002 included fire escape maintenance and security lock issues, though these were resolved. The most recent active complaint as of early 2023 involves unauthorized work related to awning installation.

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

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Risk rating

How 631-641 Jackson 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
14th percentile

Out of 145 buildings in this neighborhood, 125 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
15%
No DBI
violation
85%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Building size

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

12-Month severity forecast
No violation 17.0%
Moderate concern 46.3%
Severe concern 36.7%
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

631-641 Jackson St event timeline

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

2026
Fire Complaint Feb 27
Extinguishers
Planning RecordFeb 10
ABC Referral - Recommend approval of Type 41 ABC License (41 - On-Sale Beer & Wine - Eating Place) - Principally permitted under Restaurant use within the Chinatown Visitor Retail District per P.C. Sec. 811.

See all 21 events

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

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Every record we have

Full data for 631-641 Jackson 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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