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17-19 Valparaiso St

Russian Hill, SF 94133 0091009A 2 units · 2 fl · 1912

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 Russian Hill — not a forecast
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 17-19 Valparaiso 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 1912
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 1912
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 built1912
Total area1,990 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0091009A
Ownership

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

Owner name
Mailing address
17 Valparaiso St San Francisco CA 94133
Last sale
—

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.

19 Valparaiso St, San Francisco, CA 94133
17 Valparaiso St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The two-unit residential building at 17 Valparaiso Street in Russian Hill is a two-story flats and duplex structure built in 1912, currently owned by Clayton K. Tang. The most recent significant maintenance activity was completed in September 2023, involving a reroofing project costing $13,273, which has been successfully completed. This follows a substantial window upgrade that occurred in November 1987, when aluminum windows were installed, representing one of the few documented improvements to the property's envelope over the past several decades.

The building's maintenance history from 2011 onwards shows regular attention to basic infrastructure, particularly regarding street-level issues. The most recent incidents, occurring in July 2022, involved three separate reports of loose garbage requiring general cleaning of the street area, all of which were resolved. Prior to these, there was one report in April 2020 concerning hazardous materials (specifically oil/paint/other liquids) in the street area, which was also resolved. Earlier records show a minor incident with an abandoned vehicle in October 2016 that was resolved when the vehicle was no longer present, and a streetlight issue in November 2011 that was promptly addressed by PG&E with lamp replacement. While these incidents reflect general urban maintenance issues rather than specific building concerns, they do provide context about the building's immediate surroundings and the local infrastructure maintenance responsiveness.

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

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Risk rating

How 17-19 Valparaiso 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
89thpercentile

Out of 1133 buildings in this neighborhood, 125 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
91%
No DBI
violation
9%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month risk forecast
Low failure risk 9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

17-19 Valparaiso St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

17-19 Valparaiso St event timeline

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

2026
311 Request Jan 05
Abandoned vehicle
Parking Enforcement

See all 8 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 17-19 Valparaiso St apartments

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

Side by side

How 17-19 Valparaiso St compares to the neighborhood

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