Free SF apartment background check

3819 18Th St

Eureka Valley/Dolores Heights, SF 94114 3585083 4 units · 2 fl · 1926

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 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 3819 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 1926
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1926
Total area3,372 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3585083
Ownership

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

Owner name
Do Christopher & Lau Jenny
Mailing address
65 Country Club Dr Hillsborough CA 94010
Last sale
121418

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 3819 18th Street is a two-story, four-unit multi-family residential building constructed in 1926, currently owned by Christopher Do and Jenny Lau. The building has undergone significant renovations in recent years, with substantial work completed between 2016-2018 on all four units, including kitchen and bathroom remodels, electrical upgrades, and some unit-specific improvements. The most recent work, as of October 2023, involves reroofing with a permitted cost of $15,000. Several permits from 2016-2017 related to unit renovations had expired, including work on Units 2, 3, and 4 that required renewal permits in 2018. There were also some concerning building conditions noted in 2017 regarding missing and rotted siding on the lower area at the east property fire wall, which was eventually addressed. The property has had a few historical violations, including a 2002 inspection that identified multiple safety concerns (since resolved) such as fire extinguisher maintenance and gas utility shutoff tool requirements.

Recent activity around the building has primarily involved external issues such as graffiti removal, parking complaints, and urban maintenance matters documented through 311 calls, with the most recent concerns being about driveway blocking and street cleaning in 2024. A notable section of the building's history includes a disapproved permit application in 2016 for adding an accessory unit with additional bedrooms and rooms, which was not implemented. While the building has experienced some construction-related oversight issues in the past, particularly in 2018 regarding uninspected concrete foundation work, these appear to have been resolved through subsequent inspections and permits. The property's maintenance history suggests ongoing investment in building improvements, with the most recent maintenance work focused on basic building systems like roofing.

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

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Risk rating

How 3819 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
38th percentile

Out of 1278 buildings in this neighborhood, 792 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 location

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

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 61.6%
Moderate concern 20.4%
Severe concern 18.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

3819 18Th St event timeline

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

2025
311 Request Dec 31
Not offensive
building residential
311 RequestFeb 04
311 service request

See all 3 events

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

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Every record we have

Full data for 3819 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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