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791 Vienna St

Excelsior, SF 94112 6339039 2 units · 2 fl · 1918

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 Excelsior — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Excelsior average of 1.4.

Rent & eviction protection

Is 791 Vienna 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 1918
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 1918
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 built1918
Total area2,835 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6339039
Ownership

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

Mailing address
1086 Geneva Ave San Francisco CA 94112
Last sale

Landlord portfolio

Other SF properties this owner holds, with a risk rating for each.

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Augrented Insights
Initial analysis

The two-unit, two-story multi-family residential building at 791 Vienna St in the Excelsior neighborhood, owned by Moisant Ray & Donna K, was constructed in 1918 and has undergone several significant maintenance and improvement projects in recent years. The property has seen substantial window improvements over the past year, with multiple permits issued for window replacements between October 2023 and April 2024, including both street-visible and rear windows, with associated costs ranging from approximately $6,688 to $20,986. A complete reroofing project was successfully finished in June 2023 at a cost of $20,000, and the building's plumbing system received an upgrade in 2013 with the installation of a new house trap and section of pipe.

The property has experienced various neighborhood issues as documented through 311 calls, with the most recent being an overgrown tree near communication lines (January 2025) and a pavement defect reported in November 2023. Previous concerns included a garbage and debris incident that was resolved in late 2024, and multiple parking violations between 2018-2021 involving vehicles blocking driveways and parking on sidewalks. The building's exterior maintenance record shows consistent upkeep, particularly with the recent window replacement projects that adhere to energy efficiency standards (U-factor not exceeding 0.30), as evidenced by multiple approved permits for wood aluminum clad window installations.

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

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Risk rating

How 791 Vienna 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
99thpercentile

Out of 337 buildings in this neighborhood, 3 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
89%
No DBI
violation
11%
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.

Neighborhood (ZIP code)

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

Building age

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

12-Month risk forecast
Low failure risk 11%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

791 Vienna St apartment reviews

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The story over time

791 Vienna St event timeline

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

2024
Building Permit Apr 02
Replace (1) window street visible: (e) wood, (n) alum and clad wood- gliding triple. no change <.30 max
$9,239 · Issued
Building PermitFeb 09
Replace (2) rear windows non-street visible (e) aluminum, (n) wood comp. no size change & no rough opening changes. u-factor not to exceed 0.30.

See all 5 events

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

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Every record we have

Full data for 791 Vienna St apartments

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

Side by side

How 791 Vienna St compares to the neighborhood

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

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