Free SF apartment background check

4238 18Th St

Eureka Valley/Dolores Heights, SF 94114 2648020 2 units · 1 fl · 1900

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

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
At or below average
avg 1.3
1
FewerMore

This building has 1 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 4238 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
CASTRO
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
Floors1
Year built1900
Total area1,394 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2648020
Ownership

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

Owner name
Bastarrachea Trust
Mailing address
Efren & Gloria Bastarrachea 22 Carleton Ave Daly City CA 94015
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 4238 18th Street is a 1-story, multi-family residential building with 2 units, constructed in 1900, and currently owned by the Bastarrachea Trust. The building has experienced several significant plumbing and building issues in recent years, most notably in 2019 when there was a violation involving wastewater leaking onto neighboring property, which was addressed through multiple permits for drain line work and storm drain installation. In 2014, a water heater was replaced, and between 2010-2013, several plumbing improvements were made including the installation of a grease trap and mop sink. The property has a history of building code violations and complaints, particularly in 2010 when unapproved tandoori ovens were installed without permits, leading to multiple enforcement actions. There were also complaints regarding unauthorized work and severe fumes from a restaurant installation that year. Earlier maintenance records show roofing work from 1998 and various repairs in 1987, though some of these permits expired or were cancelled.

In terms of recent activity, the building has faced multiple sanitation-related issues in 2023-2024, with several 311 calls regarding garbage, debris, and waste on the property or nearby. There have been more recent complaints regarding shared spaces and parklet issues, though these were generally found to have no merit upon inspection. The property's planning records indicate it operates as a limited restaurant with some non-conforming uses, and it underwent a change of ownership while maintaining its existing restaurant status. Fire safety concerns appear to have been promptly addressed, with a 2010 complaint about operating without a permit being corrected the same day. The combination of historical plumbing issues, building code violations, and recent sanitation concerns suggests ongoing maintenance challenges at this location, while the prompt resolution of most complaints and violations indicates compliance efforts are typically addressed, though sometimes after initial violations are documented.

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

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Risk rating

How 4238 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
15th percentile

Out of 1278 buildings in this neighborhood, 1086 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
50%
No DBI
violation
50%
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.

DBI complaint rate, owner's portfolio

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

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

12-Month severity forecast
No violation 25.8%
Moderate concern 57.3%
Severe concern 16.9%
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

4238 18Th St event timeline

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

2026
311 Request Jun 06
Parking meter
Damage Property
311 RequestMay 25
Garbage and debris

See all 11 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4238 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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