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638 Rhode Island St

Potrero Hill, SF 94107 4030005 4 units · 3 fl · 1911

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Potrero Hill
Above average
avg 1.1
2
FewerMore

This building has 2 novs (7y), above the Potrero Hill average of 1.1.

Rent & eviction protection

Is 638 Rhode Island 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 1911
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units4
Floors3
Year built1911
Total area2,663 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4030005
Ownership

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

Owner name
Zhao Xi & Cameron Reynolds
Mailing address
638 Rhode Island St San Francisco CA 94107
Last sale
060217

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.

638 A Rhode Island St, San Francisco, CA 94107
638 Rhode Island St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The 4-unit multi-family residential building at 638 Rhode Island Street in Potrero Hill, owned by Zhao Xi & Cameron Reynolds, was built in 1911 and has undergone significant renovations and faced several regulatory challenges in recent years. Most notably, there are active building complaints from 2022 and 2023 regarding a potentially hazardous leaning retaining wall and unauthorized construction work beyond the scope of permitted repairs, respectively. The property has a complex renovation history, including efforts to legalize a previously unauthorized 3rd unit in 2023, which was initially constructed without proper permits in 2024. Recent construction activities have focused on comprehensive improvements to all units, including new kitchens and bathrooms throughout, Window replacement, and the installation of new fire safety systems. Multiple active violations from 2015 remain unresolved, including issues with mold, interior surface repairs, and fire escape maintenance. The building is currently undergoing safety upgrades, with permits issued in late 2024 for new fire sprinkler and fire alarm systems, suggesting a commitment to addressing safety concerns despite past compliance issues.

The property has an extensive permit history showing significant investment in improvements, including electrical system upgrades, plumbing renovations, and structural work. Recent permits filed in 2023-2024 indicate substantial ongoing construction activity, including the addition of exterior decks and stairs, particularly focusing on upgrading the 3rd floor and rear cottage. Historic permits show earlier electrical work to upgrade from knob and tube wiring, new electrical panels, and various remodeling projects. The building's maintenance history includes responses to multiple 311 calls regarding various issues, though these are primarily related to exterior conditions rather than structural or safety concerns. While the building has faced several regulatory challenges, recent permits and improvements suggest progress toward resolving outstanding issues and bringing the building into compliance with current regulations, though several active violations remain on record.

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

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Risk rating

How 638 Rhode Island 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
3th percentile

Out of 726 buildings in this neighborhood, 704 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
31%
No DBI
violation
69%
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.

Director's hearing rate, owner's portfolio

Per-building rate of director's hearings across the owner's portfolio.

12-Month severity forecast
No violation 57.0%
Moderate concern 37.4%
Severe concern 5.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

638 Rhode Island St apartment reviews

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The story over time

638 Rhode Island St event timeline

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

2026
DBI Complaint Apr 13
Date last observed: 11-apr-26; time last observed: 8am; exact location: rear bldg; building type: residence/dwelling other building; ; additional information: the scope of work is not matching the online building plans;
Building Inspection Division
Building PermitFeb 20
Revision to bpa#202306139926- scope of work to include installation of (e) elec. matt in floor heating to replace to (e) elec. base board heating units, no increase to wattage

See all 26 events

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

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Every record we have

Full data for 638 Rhode Island 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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