Free SF apartment background check

733-735 Webster St

Alamo Square, SF 94117 0797006 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 Alamo Square
At or below average
avg 2.3
0
FewerMore

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

Rent & eviction protection

Is 733-735 Webster 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 area2,560 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0797006
Ownership

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

Owner name
Uchiyama Karen
Mailing address
735 Webster St San Francisco CA 94117
Last sale
051921

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.

733 Webster St, San Francisco, CA 94117
735 Webster St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The 733-735 Webster Street building is a two-unit, two-story multi-family residential structure located in Alamo Square, constructed in 1900 and currently owned by Karen Uchiyama. The property has undergone several significant renovations and infrastructure improvements over the years, with the most recent substantial work being a master bathroom conversion completed in 2018 that included plumbing and electrical updates. Earlier major works include a brick footing replacement in 2008 (completed at a cost of $27,000), comprehensive bathroom renovations in 2012, and various plumbing upgrades including a new water service installation in 2010. Historical maintenance records show attention to foundational integrity and structural elements, with the front stairway rebuilt in 1990 and dryrot repairs completed in 1996.

The building's maintenance history demonstrates regular attention to infrastructure systems, including multiple bathroom renovations, electrical upgrades (notably a 200-amp service installation in 2012), and various plumbing improvements. Recent 311 calls (2020-2024) related to the property have primarily concerned external matters such as street cleaning and bicycle lane violations, with no serious building-specific issues reported. The property has experienced several minor fire-related incidents, including smoke scares, a flammable liquid spill, and a brief cooking fire, though none resulted in civilian injuries or significant damage. The building's permit history suggests ongoing maintenance and improvement efforts, with the most recent construction work focusing on bathroom facilities and associated plumbing and electrical systems, while historical records indicate attention to structural elements and basic systems throughout its history.

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

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Risk rating

How 733-735 Webster 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
89th percentile

Out of 305 buildings in this neighborhood, 34 are predicted to be safer.

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

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Estimated permit spend (past 7 years)

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

12-Month severity forecast
No violation 84.5%
Moderate concern 9.3%
Severe concern 6.2%
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

733-735 Webster St event timeline

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

2026
311 Request May 24
Parking on sidewalk
Parking Enforcement

See all 2 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 733-735 Webster St apartments

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

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