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663-665 Natoma St

South of Market, SF 94103 3727027 3 units · 3 fl · 1907

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 South of Market
At or below average
avg 3.3
0
FewerMore

This building has 0 novs (7y), at or below the South of Market average of 3.3.

Rent & eviction protection

Is 663-665 Natoma 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
3 units
Property type
Multi-Family Residential
Zoning
RED
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
Units3
Floors3
Year built1907
Total area4,390 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3727027
Ownership

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

Owner name
American Conservatory Theat
Mailing address
30 Grant Ave Fl 6 San Francisco CA 94108
Last sale
082212

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.

665 Natoma St, San Francisco, CA 94103
663 Natoma St, San Francisco, CA 94103
665 A Natoma St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The three-story multi-family residential building at 663-665 Natoma Street in San Francisco's South of Market neighborhood was constructed in 1907 and is owned by the American Conservatory Theater. The property has undergone several significant renovations and maintenance work over the years, with major updates occurring between 2000-2002 when the building underwent substantial electrical system remodeling, lath and plaster replacement, and installation of new backstaircase steel structures. Three street space permits were issued in November 2008, though no associated costs were indicated. The building has maintained compliance with routine safety inspections in 1999 and 2007, both of which were resolved promptly.

Unfortunately, there has been a notable increase in issues requiring attention in recent months, particularly in fall 2024. The property has generated multiple reports of garbage and debris on or near the premises, including instances of human waste and urine, though most of these cases were resolved without requiring further action. A concerning pattern of urban maintenance issues is evident, with active reports of a damaged tree (opened September 2024) and a blocked sidewalk due to a porta potty placement (resolved September 2024 with a citation issued). The most recent issues reported include illegal parking (January 2025) and various garbage complaints. While these maintenance matters primarily relate to street and exterior conditions rather than the building itself, they indicate increasing environmental challenges in the immediate vicinity of the property. The building's historical maintenance record shows regular upkeep and modernization efforts, though the recent spike in external environmental issues may merit attention to local sanitation and public space management conditions.

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

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Risk rating

How 663-665 Natoma 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
59th percentile

Out of 430 buildings in this neighborhood, 176 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
75%
No DBI
violation
25%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Neighborhood location

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

12-Month severity forecast
No violation 42.3%
Moderate concern 24.4%
Severe concern 33.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

663-665 Natoma St event timeline

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

2026
311 Request Feb 14
Encampment
Encampment
311 RequestFeb 05
Encampment

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 663-665 Natoma St apartments

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

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