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153-155 Silliman St

Portola, SF 94134 5926029 2 units · 2 fl · 1900

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Portola
Above average
avg 1.8
17
FewerMore

This building has 17 novs (7y), above the Portola average of 1.8.

Rent & eviction protection

Is 153-155 Silliman 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 built1900
Total area1,850 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5926029
Ownership

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

Owner name
Cardenas Christopher
Mailing address
Christina Newman 427 Wrentham Dr Vacaville CA 95688
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.

155 Silliman St, San Francisco, CA 94134
153 Silliman St, San Francisco, CA 94134
Augrented Insights
Initial analysis

The two-unit residential building at 153-155 Silliman Street in the Portola neighborhood, owned by Christopher Cardenas, is a two-story flats and duplex structure built in 1900. The property has experienced significant maintenance and safety issues over the past few years, with particular concerns regarding stair safety. Most notably, there have been multiple permit attempts to address rear stairs replacement between 2023-2024, including recent permits filed in October 2024. A serious cluster of violations was documented in May 2024, including issues with water heaters, sink repairs, tub/shower repairs, smoke detection systems, carbon monoxide alarms, and emergency egress windows. Additional active complaints from 2024 suggest unauthorized utility connections between units and unpermitted construction work, including alleged asbestos removal without proper certification.

The building has undergone several renovation attempts, including interior remodeling of the first-floor unit in 2022, bathroom fixture updates, and roofing work in 2022. Multiple permits were issued and revised regarding stair repairs, window replacements, and general building maintenance. The property has also faced infrastructure challenges, with three sidewalk defect complaints recorded in late 2024, though these were ultimately found to have no conditions requiring action. Recent maintenance activity includes plumbing upgrades, with permits issued in April 2024 for new shower pans and a wall-mounted water heater replacement, as well as a new furnace installation.

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

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Risk rating

How 153-155 Silliman 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
4th percentile

Out of 255 buildings in this neighborhood, 245 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
16%
No DBI
violation
84%
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.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

12-Month severity forecast
No violation 10.2%
Moderate concern 76.4%
Severe concern 13.3%
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

153-155 Silliman St event timeline

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

2026
DBI Complaint Jun 01
Date last observed: 28-may-26; time last observed: 5/28/26; floor: 1st; unit: 155; exact location: main bldg; building type: residence/dwelling expired permits; work w/o permit; work beyond scope of permit; other building; ; additional information: alleged pena gc illegally broke into my backyard and later stated that "we're here to rebuild backyard fence but put up 1 post because the broke prior post. ;
Code Enforcement Section
DBI ComplaintMay 06
Date last observed: 05-may-26; time last observed: 10:13am; floor: 1st; unit: 155; exact location: main bldg; building type: residence/dwelling expired permits; work w/o permit; work beyond scope of permit;

See all 29 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 153-155 Silliman St 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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