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236-238 Diamond St

Eureka Valley/Dolores Heights, SF 94114 2698006 2 units · 2 fl · 1909

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 236-238 Diamond 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 1909
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 1909
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 built1909
Total area2,880 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2698006
Ownership

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

Mailing address
Ortega Joseph Jhue & Harrie 236 Diamond St San Francisco CA 94114
Last sale
December 03, 2014

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.

236 Diamond St, San Francisco, CA 94114
238 Diamond St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit residential property at 236-238 Diamond Street, located in the Eureka Valley/Dolores Heights neighborhood, is a 2-story flats/duplex building constructed in 1909 and currently owned by the Ortega-Chang Living Trust. The building has undergone significant recent renovations, with the most substantial work occurring between late 2022 and 2024, including foundation leveling ($49,700), structural updates, and footprint expansion of the rear portion ($250,000). Multiple revisions have been made to these permits, including additional windows and structural modifications. The property has seen substantial infrastructure improvements, including a complete electrical upgrade to replace old knob and tube wiring, installation of new smoke detectors, and comprehensive plumbing work involving kitchen remodels, new tankless water heaters, and sewer repairs. A notable tenant buyout occurred in 2015 for $29,500 involving two tenants at 238 Diamond Street.

The building's maintenance history suggests proactive upkeep, with recent work addressing both comfort and safety systems, including furnace replacement, plumbing updates, and electrical system modernization. While there have been some building issues, such as a sewage backup in 2021 and various infrastructure upgrades, these appear to be part of regular maintenance rather than emergency repairs. The property has complied with recent building codes, as evidenced by the multiple permits obtained and completed work. External incidents recorded through 311 calls have primarily involved minor issues like parking violations and street cleaning matters, rather than building-specific problems.

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

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Risk rating

How 236-238 Diamond 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
94thpercentile

Out of 1278 buildings in this neighborhood, 77 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
92%
No DBI
violation
8%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month risk forecast
Low failure risk 8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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The story over time

236-238 Diamond St event timeline

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

2026
Plumbing Permit Jul 14
Installation of two heat pumps and two air handlers.
Complete
Plumbing PermitMar 24
Work category: 2pa; this pays for inspections related to original permit # pw20240613533 filed 6/13/2024. and permit # pw20240820002 dow: work category: 2pb; in kind 2 kitchen remodel, replace 2 tankless water heaters, new underground plumbing for future bathroom, add new mop sink, add new bar sink and install new pipe for storm drain

See all 16 events

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

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Every record we have

Full data for 236-238 Diamond St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 236-238 Diamond 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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