Free SF apartment background check

228-232 Collingwood St

Eureka Valley/Dolores Heights, SF 94114 2697003 2 units · 2 fl · 1926

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 Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 228-232 Collingwood 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 1926
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1926
Total area5,034 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2697003
Ownership

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

Owner name
Tseng Nicole
Mailing address
Tseng Diana 230 Collingwood St San Francisco CA 94114
Last sale
071119

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.

228 Collingwood St, San Francisco, CA 94114
232 Collingwood St, San Francisco, CA 94114
230 Collingwood St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 228-232 Collingwood Street is a two-unit, two-story multi-family residential building constructed in 1926, currently owned by Nicole Tseng. The building has undergone significant recent improvements, most notably the comprehensive installation of a fire sprinkler system in 2022-2023, with the most recent work involving a sprinkler monitoring system completed in October 2023 at a cost of $5,406. The property has seen substantial modernization efforts, including the installation of two solar systems in February 2023 (totaling 4.51 kW), upgrading the electrical service to 400A in May 2022, and the addition of three ducted heat pumps for the duplex in 2021-2022. Major interior renovations have included bathroom and laundry room modifications, window installations, and the construction of additional habitable spaces, particularly the addition of a new dwelling unit in the rear yard area, which required specific variances and planning approvals.

The building's recent history shows active maintenance and upgrading of essential systems, including plumbing improvements with the installation of new kitchen, bathroom, and laundry facilities, as well as heat pump water heaters in 2020. The property has maintained compliance with safety regulations through the systematic installation of fire safety systems, including the conversion of the entire building to accommodate sprinklers. While there have been some municipal service calls recorded, these have primarily related to external issues like sidewalk conditions and parking concerns rather than building-specific problems. The property's recent improvements, particularly the fire safety system installations and energy-efficient upgrades, suggest a commitment to maintaining and improving the building's infrastructure and safety systems.

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

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Risk rating

How 228-232 Collingwood 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
98th percentile

Out of 1278 buildings in this neighborhood, 26 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
94%
No DBI
violation
6%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

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 88.0%
Moderate concern 10.3%
Severe concern 1.7%
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

228-232 Collingwood St event timeline

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

2024
Plumbing Permit Jan 04
Work category: 4pa; to renew an expired plumbing permit #pw20221017810 for final of the fire sprinkler permit app#2022 1012 4225. also refer to building permit app#2019 1224 0654.
Complete

See all 17 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 228-232 Collingwood 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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