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231-235 Collingwood St

Eureka Valley/Dolores Heights, SF 94114 2696027 4 units · 2 fl · 1907

This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

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

This building has 7 novs (7y), above the Eureka Valley/Dolores Heights average of 1.4.

Rent & eviction protection

Is 231-235 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 1907
2 or more units
4 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 1907
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
Units4
Floors2
Year built1907
Total area3,304 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2696027
Ownership

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

Mailing address
231-235 Collingwood St San Francisco CA 94114
Last sale
December 10, 1987

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.

233 Collingwood St, San Francisco, CA 94114
235 Collingwood St, San Francisco, CA 94114
231 Collingwood St, San Francisco, CA 94114
Augrented Insights
Initial analysis

This 4-unit, 2-story multi-family residential building located at 231-235 Collingwood Street in the Eureka Valley/Dolores Heights neighborhood was built in 1907 and is currently owned by David Del Rosario. The property has undergone several significant renovations and faced multiple compliance issues over its history, with the most recent concerns centering around heating and fire safety systems. In 2022, the building experienced heating system complaints that resulted in violation notices, though these were marked as not active by June 30, 2022. A notable pattern of building code and safety compliance issues emerged in 2022/2023, including a sprinkler system violation issued in June 2023 that was later abated by September 2023, along with similar concerns regarding heating systems and fire safety documentation requirements. The building underwent a kitchen renovation in 2015, including electrical and plumbing work totaling approximately $26,000, but has experienced recurring infrastructure challenges, including historical issues with stairs (repairs noted in 2002) and multiple citations regarding unauthorized basement modifications, including plumbing and electrical work. Recent activity shows recurring issues with parking enforcement in the area, with multiple citations issued for driveway blocking between 2021 and 2024, though these are not directly related to building conditions. The property has maintained its legal designation as an R-1 occupancy with four dwellings over two floors plus basement/storage space, despite past concerns about unauthorized modifications and occupancy use.

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

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Risk rating

How 231-235 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
5thpercentile

Out of 1278 buildings in this neighborhood, 1214 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
28%
No DBI
violation
72%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month risk forecast
High failure risk 72%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

231-235 Collingwood St apartment reviews

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On the map

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The story over time

231-235 Collingwood St event timeline

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

2024
311 Request Jan 06
Abandoned vehicle - car4door
GREY - KIA - - 9FIN634

See all 8 events

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

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Every record we have

Full data for 231-235 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 231-235 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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