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735-737 Portola Dr

Miraloma Park, SF 94127 2901C012 2 units · 2 fl · 1931

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 Miraloma Park
At or below average
avg 1.0
0
FewerMore

This building has 0 novs (7y), at or below the Miraloma Park average of 1.0.

Rent & eviction protection

Is 735-737 Portola 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 1931
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
NC1
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 built1931
Total area4,960 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2901C012
Ownership

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

Owner name
Watanabe Family Trust The
Mailing address
Ignatius T Watanabe 2016 Tapscott Ave El Cerrito CA 94530
Last sale
000000

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.

737 Portola Dr, San Francisco, CA 94127
735 Portola Dr, San Francisco, CA 94127
Augrented Insights
Initial analysis

The two-unit, two-story multi-family residential building at 735-737 Portola Drive in Miraloma Park, owned by the Watanabe Family Trust, has undergone several significant improvements since its construction in 1931. The most substantial recent work includes a complete roof replacement in 2021 costing $37,800, and a bathroom remodel in 2017 featuring new fixtures and tiles valued at $18,500. The building's maintenance history shows attention to critical infrastructure, including a sewer lateral replacement in 2017, and multiple electrical upgrades between 2004-2007 involving wiring, lighting, and panel improvements.

The property has experienced minimal safety concerns, with only two fire complaints regarding blocked exits in 2010 and 2014 (both found to have "No Merit"), and a 2021 smoke detector activation incident which was unintentional with no injuries reported. The commercial space within the building underwent a notable conversion in 2013, splitting one restaurant into two separate businesses (Round Table Pizza and Pop's Sandwich Shop) with no structural alterations. Recent municipal service requests from late 2024 have primarily related to street and sidewalk maintenance, including issues with garbage, street lighting, and a damaged tree. While there have been various infrastructure maintenance needs in the surrounding area as evidenced by 311 calls, most recent complaints have been promptly addressed by city services.

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

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Risk rating

How 735-737 Portola 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
86th percentile

Out of 7 buildings in this neighborhood, 1 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
90%
No DBI
violation
10%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood location

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

Building size

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

12-Month severity forecast
No violation 80.3%
Moderate concern 16.0%
Severe concern 3.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

735-737 Portola Dr event timeline

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

2025
311 Request May 03
Parking meter
Damage Property
311 RequestFeb 21
"private lot"

See all 5 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 735-737 Portola 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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