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335 Ralston St

Merced Heights, SF 94132 7003013

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 Merced Heights
Above average
avg 0.2
1
FewerMore

This building has 1 novs (7y), above the Merced Heights average of 0.2.

Rent & eviction protection

Is 335 Ralston 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 1928
2 or more units
? units
Property type
Multi-Family Residential
Zoning
RH1
Possibly exempt. Built before 1979 but single-unit — single-family homes and condos may be exempt from the SF Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units
Floors2
Year built1928
Total area2,168 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot7003013
Ownership

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

Owner name
Si Zhi Qing
Mailing address
335 Ralston St San Francisco CA 94132
Last sale
122115

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story multi-family residential building at 335 Ralston Street in Merced Heights, owned by Si Zhi Qing, was constructed in 1928 and has undergone several significant modifications over the years. Most notably, in 2014, a substantial renovation project costing $152,000 was completed to legalize additional living spaces, including bathrooms, bedrooms, family room, and kitchen on the first floor, along with a bedroom and storage room at the lower level. This work was followed by multiple deck repairs in 2017 and 2019, and a garage door replacement in 2020. The property has experienced some compliance issues, with a recent 2024 violation regarding incomplete front setback landscaping and permeability work, which was subsequently addressed in August 2024.

The building's history includes two documented fire incidents, though neither resulted in civilian injuries, with causes related to equipment failure and cooking. While there were also two fire complaints (one regarding weeds/grass in 2021 and a blocked exit complaint in 2006), these issues were either deemed duplicate or without merit. The property has undergone various maintenance and improvement works over the years, including plumbing and electrical updates, with the most recent permit in 2024 involving landscape alterations. Recent 311 calls primarily relate to street-level issues such as parking violations and debris removal, rather than building-specific problems, suggesting regular external maintenance of the property.

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

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Risk rating

How 335 Ralston 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
25th percentile

Out of 4 buildings in this neighborhood, 3 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
82%
No DBI
violation
18%
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 location

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

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.

12-Month severity forecast
No violation 84.4%
Moderate concern 11.3%
Severe concern 4.3%
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

335 Ralston St event timeline

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

2024
Building Permit Aug 01
Comply with nov 202423510 to alteration pa 201408053038 for front setback landscape/permeability @ the property
$3,000 · Complete
Planning RecordAug 01
Comply with NOV 202423610 to alteration bpa 201408053038 for including front setback landscaping/permeability requirement at the property.

See all 6 events

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

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Every record we have

Full data for 335 Ralston 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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