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228-232 Collingwood St

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

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Eureka Valley/Dolores Heights — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.4.

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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1926
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

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
Mailing address
Tseng Diana 230 Collingwood St San Francisco CA 94114
Last sale
March 18, 2019

Landlord portfolio

Other SF properties this owner holds, with a risk rating 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
97thpercentile

Out of 1278 buildings in this neighborhood, 38 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

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 risk forecast
Low failure risk 6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

228-232 Collingwood St 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.

Side by side

How 228-232 Collingwood St compares to the neighborhood

This building against comparable properties in Eureka Valley/Dolores Heights. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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