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178 Portola Dr

Twin Peaks, SF 94131 2847059 2 units · 3 fl · 1971

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 Twin Peaks
At or below average
avg 3.0
0
FewerMore

This building has 0 novs (7y), at or below the Twin Peaks average of 3.0.

Rent & eviction protection

Is 178 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 1971
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1971
Total area2,614 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2847059
Ownership

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

Owner name
Young Mark S
Mailing address
280 Beacon St San Francisco CA 94131
Last sale
051716

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 178 Portola Drive is a three-story, two-unit multi-family residential building located in Twin Peaks, owned by Mark S Young and constructed in 1971. The building has undergone several significant improvements over the years, with the most substantial renovation occurring in 2010-2011 when a garage space was converted into a media room with bathroom (314 square feet) including comprehensive electrical work and plumbing installation, costing approximately $39,000. Earlier improvements in 2007 included exterior window replacements, front door updates, stucco repairs, and an important electrical system upgrade to 200 amps with three meters. A deck repair project was completed in 2008, though a complaint was filed in 2006 regarding various issues including a leaking roof, deck repair concerns, cracked windows, and an electric gate malfunction, which were purportedly abated within a month.

Recent history of the property shows no active building code violations, but it experienced some temporary issues in early 2024 with multiple reports of garbage and debris on the street/sidewalk near the property, all of which were resolved by city services. Of particular note is a historical compliance issue regarding short-term rentals; the property was identified and cited for illegal short-term vacation rentals in 2013 and 2014, with the second violation specifically mentioning previous infractions at a different location, though these activities have since been confirmed as abated.

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

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Risk rating

How 178 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
96th percentile

Out of 172 buildings in this neighborhood, 7 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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.

Building permits, owner's portfolio

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

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 83.2%
Moderate concern 11.8%
Severe concern 4.9%
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

178 Portola Dr event timeline

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

2024
311 Request Jan 25
Complaint
Bicycle Sharing Operations - complaint
311 RequestJan 20
Christmas tree

See all 2 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 178 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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