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1137 Webster St

Western Addition, SF 94115 0749001C 4 units · 2 fl · 1926

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 Western Addition
At or below average
avg 5.1
2
FewerMore

This building has 2 novs (7y), at or below the Western Addition average of 5.1.

Rent & eviction protection

Is 1137 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 1926
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM3
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
Floors2
Year built1926
Total area3,650 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0749001C
Ownership

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

Owner name
Moon Sam
Mailing address
935 Oregon Ave Palo Alto CA 94303
Last sale
090514

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The two-story, four-unit apartment building at 1137 Webster St in the Western Addition, owned by Sam Moon, was constructed in 1926 and has undergone several significant renovations and faced multiple maintenance challenges over the years. Major renovation work was completed between 2006-2008, including kitchen and bathroom remodels in units 1 and 2, electrical rewiring of kitchens and living areas, and installation of new wall furnaces. Plumbing systems received attention in 2008 with updates to sewer and house traps, and there were serious water quality issues noted in 2008-2018, including complaints about rusty water and drainage problems. The building experienced safety inspections in 2008 and 2018, revealing violations related to fire safety equipment, stair repairs, and various building maintenance issues, though these were subsequently abated.

Historical records show consistent attention to building maintenance, with repairs to stairs, siding installation, and various plumbing updates occurring in the 1990s and 2000s. A significant plumbing upgrade was completed in 1994, replacing all water pipes with new copper piping and installing new gas lines and hot water heaters. The building has experienced multiple routine safety inspections, fire safety violations, and maintenance issues, including periods of plumbing problems, electrical concerns, and general wear and tear. While there have been several fire-related incidents (all non-injury), most were false alarms or system malfunctions, with only one minor building fire recorded. Recent 311 calls from 2022-2025 primarily related to street cleaning and parking enforcement issues rather than internal building problems. The property's maintenance history shows regular upkeep and response to violations, with most issues being addressed and corrected promptly through appropriate permits and inspections.

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

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Risk rating

How 1137 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
49th percentile

Out of 167 buildings in this neighborhood, 85 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
66%
No DBI
violation
34%
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.

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

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 47.0%
Moderate concern 31.5%
Severe concern 21.5%
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

1137 Webster St event timeline

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

2026
311 Request May 25
Blocking driveway cite only
Parking Enforcement
311 RequestMay 24
Blocking driveway cite only

See all 4 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1137 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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