Free SF apartment background check

4150 Lawton St

Outer Sunset, SF 94122 1893049 4 units · 2 fl · 1958

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Outer Sunset
At or below average
avg 1.8
0
FewerMore

This building has 0 novs (7y), at or below the Outer Sunset average of 1.8.

Rent & eviction protection

Is 4150 Lawton 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 1958
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
Floors2
Year built1958
Total area2,575 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1893049
Ownership

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

Owner name
Fang Edward S
Mailing address
Edwards S & Helen L Fang 460 Beacon St San Francisco CA 94131
Last sale
081501

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 4150 Lawton Street property is a two-story, four-unit multi-family residential building located in the Outer Sunset neighborhood, constructed in 1958 and currently owned by Edward S. Fang. The building has undergone several significant improvements over the years, with the most recent substantial work being street space permits issued in late 2018, and a completed reroofing project in 2016 costing $15,000. In 2002-2003, three of the four apartments underwent kitchen and bathroom renovations, totaling over $20,000 in improvements, and in 2000, the building received important updates including window replacement with double-glazed vinyl frames and a previous reroofing project. Historical complaints suggest minor maintenance issues in the late 1990s, including concerns about windows, flooring, and shower doors, though these were resolved promptly.

The building's recent history shows no filed complaints regarding structural or maintenance issues since 2003, indicating generally stable conditions. The most significant recent activity has been related to street maintenance, with multiple 311 calls between October and December 2024 concerning street cleaning and debris removal, though these appear to be external to the building itself and relate to public spaces. A street space permit was issued in 2018, though its specific purpose is not detailed in the available records. The only recorded fire-related incident was an extrication from a vehicle, which occurred near but not directly related to the building. No recent housing inspections or complaints about building conditions have been filed, suggesting either improved management or reduced issues, though this should be interpreted with caution as not all issues may be formally reported.

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

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Risk rating

How 4150 Lawton 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
15th percentile

Out of 632 buildings in this neighborhood, 537 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
45%
No DBI
violation
55%
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.

Neighborhood location

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

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

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 26.9%
Moderate concern 33.4%
Severe concern 39.8%
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

4150 Lawton St event timeline

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

2026
311 Request Jan 20
Mold and mildew
Residential Building

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4150 Lawton St apartments

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

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