Free SF apartment background check

3638 18Th St

Mission Dolores, SF 94110 3578018 3 units · 2 fl · 1906

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 Mission Dolores
At or below average
avg 2.9
0
FewerMore

This building has 0 novs (7y), at or below the Mission Dolores average of 2.9.

Rent & eviction protection

Is 3638 18Th 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 1906
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RM2
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
Units3
Floors2
Year built1906
Total area2,000 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3578018
Ownership

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

Owner name
Candida E Spielbauer Tr
Mailing address
Thomas Spielbauer, Ttee 1523 47Th Ave San Francisco CA 94122
Last sale
100218

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 3638 18th Street in Mission Dolores is a two-story, three-unit multi-family residential building constructed in 1906 and currently managed by Candida E Spielbauer Tr. The building has experienced several significant maintenance and safety issues over the past decades, with the most recent concerns primarily occurring between 2021 and 2024. Notable historical issues include a serious incident in 1997 with a caving bathroom ceiling, and multiple violations in 2007 related to fire safety systems, including a non-functioning fire escape ladder, uncharged fire extinguishers, and missing smoke detectors, all of which were resolved by February 2007. A more recent set of repairs was documented in 2011 when dry rot problems affecting the exterior deck and stairs were addressed, along with fire safety improvements including the installation of fire-rated drywall.

The building's recent history (2022-2024) shows varying degrees of maintenance attention, with multiple 311 calls regarding street cleaning, waste management, and general maintenance of the surrounding area. There is currently an active complaint from May 2011 regarding broken/missing exterior shingles that appears unresolved. The property has undergone regular inspections by Housing Inspection Services, including routine apartment inspections in 2001, 2006, and 2007, suggesting consistent oversight of building conditions. The building's permit history indicates periodic maintenance work, including a 2011 permit for repairs to comply with past violations, though some older permits from 1989 (for window installations) and 2007 (streetspace and sidewalk work) show as expired or not completed.

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

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Risk rating

How 3638 18Th 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
53th percentile

Out of 799 buildings in this neighborhood, 376 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
65%
No DBI
violation
35%
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 (ZIP code)

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

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 63.6%
Moderate concern 25.1%
Severe concern 11.3%
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

3638 18Th St event timeline

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

2025
Building Permit Sep 29
Re-roofing. no hot works
$14,000 · Complete

See all 1 events

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

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Every record we have

Full data for 3638 18Th 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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