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70 Seal Rock Dr

Outer Richmond, SF 94121 1481001L 2 units · 2 fl · 1947

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 Outer Richmond
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 70 Seal Rock Dr 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 1947
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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
Floors2
Year built1947
Total area2,450 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1481001L
Ownership

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

Owner name
Ninfa Maria D'Silva Tr
Mailing address
D'silva Ninfa Maria Trustee 1916 Clement St San Francisco CA 94121
Last sale
070298

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 70 Seal Rock Drive in San Francisco's Outer Richmond district, owned by Ninfa Maria D'silva Tr, is a two-story flats and duplex structure built in 1947. The property has undergone significant maintenance work in recent years, including a $15,000 re-roofing project completed in 2021 and substantial repairs to address dry rot damage around the garage door and front, which involved re-stuccoing and covered approximately 500 square feet at a cost of $21,000. More recent infrastructure improvements include a complete sewer replacement in June 2020.

The building's maintenance history shows attention to structural integrity, though there was one building complaint filed in April 2021 regarding work performed without a permit by Lone Mountain Homes, Inc., though this complaint is currently listed as not active. The property has experienced some quality-of-life issues in the surrounding area, as evidenced by multiple 311 calls in 2023 and 2024, primarily related to parking enforcement matters and periodic noise complaints. These external issues appear to be unrelated to the building's condition or maintenance. Notably, the property underwent facade improvements including stucco replacement in 2018, and there was a tenant buyout recorded at an adjacent address (44 Seal Rock Drive) for two tenants in July 2018, though this is not directly related to the subject building.

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

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Risk rating

How 70 Seal Rock Dr'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
74th percentile

Out of 1040 buildings in this neighborhood, 270 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
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.

Neighborhood location

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month severity forecast
No violation 79.9%
Moderate concern 16.0%
Severe concern 4.1%
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

70 Seal Rock Dr event timeline

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

2023
311 Request Apr 11
Other illegal parking
Whote - VW Golf - 8RRA437

See all 5 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 70 Seal Rock Dr 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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