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3668-3670 18Th St

Mission Dolores, SF 94110 3578024 2 units · 3 fl · 1908

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 3668-3670 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 1908
2 or more units
2 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
Units2
Floors3
Year built1908
Total area3,325 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3578024
Ownership

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

Owner name
Brett Lider Tr
Mailing address
Lider Brett 3670 18Th St San Francisco CA 94110
Last sale
020316

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.

3668 18th St, San Francisco, CA 94110
3670 18th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-story, two-unit multi-family residential building at 3668-3670 18th Street in Mission Dolores, constructed in 1908, has undergone several significant renovations and system upgrades over the past two decades. Most notably, between 2012-2013, the property underwent substantial improvements including a rear expansion costing $205,000, comprehensive plumbing upgrades featuring new bathrooms and kitchen facilities throughout both units, and a complete electrical rewiring with a new 200-amp service. The building has received consistent attention to essential systems, with recent updates including a heat pump system installation and boiler replacement in 2022-2023, demonstrating ongoing maintenance of comfort systems.

The building's history includes two building complaints filed in November 2013 regarding unauthorized work beyond the permitted scope, including reports of interior gutting, deck construction, and skylight installation, though these complaints were marked as not active. Earlier permits show regular maintenance including reroofing in 2008 and window installations in 2005 and 1983. The property has experienced two fire incidents on record: a system malfunction and a minor building fire caused by equipment failure, neither resulting in civilian injuries. Recent activity at the address (2023-2024) has primarily consisted of routine street maintenance issues, with multiple reports of garbage and debris on public property, though these do not directly relate to the building's condition or safety.

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

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Risk rating

How 3668-3670 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
81th percentile

Out of 799 buildings in this neighborhood, 152 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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.

Neighborhood location

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 60.8%
Moderate concern 17.8%
Severe concern 21.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3668-3670 18Th St apartment reviews

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The story over time

3668-3670 18Th St event timeline

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

2025
311 Request Sep 17
311 service request
Encampment
311 RequestJun 05
311 service request

See all 6 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3668-3670 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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