Free SF apartment background check

1248 18Th Ave

Inner Sunset, SF 94122 1733032 6 units · 2 fl · 1962

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Sunset
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Inner Sunset average of 1.1.

Rent & eviction protection

Is 1248 18Th Ave 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 1962
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units6
Floors2
Year built1962
Total area4,460 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1733032
Ownership

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

Owner name
Bettie Lum Declaration Of T
Mailing address
Bettie Lum Trustee 3050 26Th Ave San Francisco CA 94132
Last sale
042799

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 6-unit, 2-story multi-family residential building at 1248 18th Avenue in San Francisco's Inner Sunset neighborhood was built in 1962 and is currently owned by Bettie Lum Declaration Of T. The property has undergone several significant improvements over the years, most notably a comprehensive soft-story retrofit completed in 2014 that included the installation of shear walls, hold downs, anchor bolts, moment frame, and foundation work at a cost of $80,000, bringing the building into compliance with seismic safety standards. Other substantial maintenance work includes reroofing projects in 1992 and 2004, and interior renovations in 1992 involving kitchen and bathroom updates.

The building has maintained a relatively clean safety record, with only one notable fire-related incident in 2014 involving a fire extinguisher issue that was promptly corrected the same day. Two routine housing inspections occurred in 2001 and 2009, with the only violation being a temporary fireproofing repair issue in 2001 that was resolved within approximately one month. Recent years have seen various 311 calls primarily related to street cleaning and parking enforcement issues, though these are mostly external to the building itself. A significant infrastructure concern was addressed in 2015 when a collapsed sidewalk condition was resolved, and there was one report of offensive graffiti in 2017 that was addressed. The building's most recent major structural work (the soft-story retrofit) and the prompt resolution of all identified issues suggest proactive property management, though prospective tenants should note the historical occurrence of parking-related incidents in the immediate vicinity.

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

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Risk rating

How 1248 18Th Ave'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
26th percentile

Out of 1493 buildings in this neighborhood, 1105 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
68%
No DBI
violation
32%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building age

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

12-Month severity forecast
No violation 58.8%
Moderate concern 18.0%
Severe concern 23.3%
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

1248 18Th Ave event timeline

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

2026
Electrical Permit Jan 08
Replace one overhead service insurance requested
Complete

See all 2 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1248 18Th Ave 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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