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827-831 Greenwich St

Russian Hill, SF 94133 0091053 3 units · 3 fl · 1907

This building has more problems than most buildings in this neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Russian Hill
Above average
avg 1.9
15
FewerMore

This building has 15 novs (7y), above the Russian Hill average of 1.9.

Rent & eviction protection

Is 827-831 Greenwich 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
3 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.

Building characteristics
Units3
Floors3
Year built1907
Total area3,282 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0091053
Ownership

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

Owner name
Yuk Lun & Mei Fong Loo 1992
Mailing address
Loo Yuk Lun & Mei Fong Trus 1529 Lundy Ave San Jose CA 95131
Last sale
090208

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

829 Greenwich St, San Francisco, CA 94133
827 Greenwich St, San Francisco, CA 94133
831 Greenwich St, San Francisco, CA 94133
Augrented Insights
AI summary

The 3-story, multi-family residential building at 827-831 Greenwich Street in San Francisco's Russian Hill neighborhood, owned by Yuk Lun & Mei Fong Loo 1992, was constructed in 1907 and contains three units. The property has experienced several significant maintenance and safety issues in recent years, with the most pressing concerns related to water intrusion and mold. In September 2023, a complaint was filed documenting ongoing water intrusion problems affecting both lightwells, the first-floor unit, and garage, resulting in mold concerns including dampness on the ceiling of the garage and beneath the bottom unit, with reports of structural integrity worries. This situation appears to have continued into 2024 with a tenant reporting bedroom mold and health issues in April 2024. The building underwent multiple permit-required repairs to exterior elements, including back exterior stairs (2023, 2016) and various window replacements, along with significant interior modifications such as bathroom renovations and infrastructure updates between 2007 and 2019.

The property has faced several violations and complaints over its history, with the most recent cluster of violations occurring in late 2023 including issues with lead hazards, fire safety equipment, and structural problems. Previous violations from 2008 and 2016 concerned unauthorized construction and plumbing work, though records indicate these were subsequently addressed. Maintenance history shows regular attention to building systems, including electrical upgrades in 2007 and heating system work in 2011, though some historical violations related to unauthorized work persisted for years before resolution. Recent property management responses appear to be addressing the most current violations, with multiple permits and abatement notices recorded in late 2023, though persistent issues with water and mold suggest ongoing challenges with building maintenance and resident comfort. The building's permit history demonstrates regular maintenance and upgrades, though several past violations related to unauthorized work indicate historical challenges with proper permitting procedures.

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Risk rating

How 827-831 Greenwich 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

Grade A–B — Low risk

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

Grade C — Moderate risk

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

Grade D–F — High risk

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

Neighborhood percentile
20th percentile

Out of 1133 buildings in this neighborhood, 906 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
41%
No DBI
violation
59%
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.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

DBI tenant complaints (past 7 years)

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

NOV rate, owner's portfolio

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

12-Month severity forecast
No violation 18.6%
Moderate concern 31.7%
Severe concern 49.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

827-831 Greenwich St event timeline

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

2025
311 Request Nov 15
Blocking driveway cite tow
Parking Enforcement
311 RequestJul 22
Public health

See all 15 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 827-831 Greenwich St apartments

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

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

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