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4051-4053 18Th St

Eureka Valley/Dolores Heights, SF 94114 3583079 3 units · 2 fl · 1920

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 Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 4051-4053 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 1920
2 or more units
3 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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1920
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units3
Floors2
Year built1920
Total area3,750 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3583079
Ownership

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

Mailing address
230 San Benito Ave San Benito CA 94066
Last sale
062598

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

4051 18th St, San Francisco, CA 94114
4053 18th St, San Francisco, CA 94114
110 Hartford St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 4051-4053 18th Street, a 2-story multi-family residential building with 3 units constructed in 1920, is owned by 4051 18th Street LLC and includes a commercial space. In 2015-2016, the building underwent significant renovations including the addition of massage rooms and improvements to disabled access facilities, though these projects triggered multiple complaints about accessibility issues, particularly regarding bathroom facilities. These complaints, along with concerns about unauthorized electrical work and water intrusion problems, were eventually abated by 2016. The building also houses a significant telecommunications installation, with AT&T equipment modifications occurring in 2005, 2009, 2016, and 2017, including the installation and relocation of antennas, remote radio units, and associated electrical work. A notable violation was recorded in 2012 regarding unapproved cellular installation work, though this was abated by 2013.

Recent activity (2024-2025) has primarily involved external issues around the property, including multiple reports of garbage and debris, illegal postings, and two encampment-related complaints in early 2025. The building experienced three fire incidents between 2001 and 2002, with two being intentionally set outside rubbish fires and one false alarm, though fortunately none resulted in civilian injuries. The property has maintained an active permit history, with the most recent building work involving electrical and plumbing improvements in 2017, including the installation of multiple fixtures and electrical systems. The building's ongoing maintenance appears to be handled through regular permit processes, with most historical violations and complaints having been resolved promptly.

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

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Risk rating

How 4051-4053 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
22th percentile

Out of 1278 buildings in this neighborhood, 997 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
57%
No DBI
violation
43%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Building age

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

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 52.6%
Moderate concern 37.4%
Severe concern 10.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

4051-4053 18Th St apartment reviews

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The story over time

4051-4053 18Th St event timeline

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

2026
311 Request May 12
Stop
defaced ok
311 RequestMar 24
Homelessness and supportive housing

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 4051-4053 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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