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3659-3663 18Th St

Mission Dolores, SF 94110 3587050 6 units · 3 fl · 1907

This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Mission Dolores — not a forecast
Above average
avg 2.9
20
FewerMore

This building has 20 novs (7y), above the Mission Dolores average of 2.9.

Rent & eviction protection

Is 3659-3663 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 1907
2 or more units
6 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.

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 1907
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
Units6
Floors3
Year built1907
Total area5,315 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3587050
Ownership

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

Mailing address
45 Walnut Ave Mill Valley CA 94941
Last sale
May 24, 2011

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

3659 18th St, San Francisco, CA 94110
3663 18th St, San Francisco, CA 94110
3661 18th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-story, six-unit multi-family residential building at 3659-3663 18th Street, owned by Real Equity Group One LLC, has undergone several significant maintenance and repair projects since its construction in 1907. Most recently, in 2023, the building experienced multiple issues including heating problems and plumbing concerns in January, followed by a building inspection that showed no violations in April. A notable repair in February 2023 involved replacing a 4x6 section of the exterior enclosed porch at unit 3663 to address a complaint. The building has completed its mandatory seismic retrofit program and received a Certificate of Final Completion (CFC) as a Tier 3 soft-story building. Previous major work includes roof replacements in 2012 and 2016, removal of a wifi antenna site in 2013, and various repair and improvement projects including stair repairs in 2009 and 2012, and unit conversions in 2011.

The building's maintenance history reveals several recurring issues, particularly during 2016-2017 when multiple complaints were filed regarding heating problems, plumbing issues, and general maintenance concerns. A lead paint hazard was also reported and subsequently addressed in 2016. In 2023, there were additional complaints about heating systems and plumbing issues, though these appear to have been resolved. The property has undergone various electrical modifications, including work related to the former wifi antenna installation in 2013 and its removal in 2015. While the building has faced multiple violations in the past, records show these were generally addressed and abated, with the most recent inspection in 2023 showing no active violations. The surrounding area has experienced typical urban maintenance issues, as evidenced by recent 311 calls for garbage removal and other services, though these are primarily external to the building itself.

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

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Risk rating

How 3659-3663 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
9thpercentile

Out of 799 buildings in this neighborhood, 727 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
26%
No DBI
violation
74%
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 tenant complaints (past 7 years)

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

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

12-Month risk forecast
High failure risk 74%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

3659-3663 18Th St apartment reviews

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The story over time

3659-3663 18Th St event timeline

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

2025
311 Request Apr 12
Garbage and debris
other bagged boxed contained garbage

See all 10 events

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

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Every record we have

Full data for 3659-3663 18Th St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 3659-3663 18Th St compares to the neighborhood

This building against comparable properties in Mission Dolores. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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