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420-422 Linden St

Hayes Valley, SF 94102 0818028 2 units · 2 fl · 1909

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Hayes Valley — not a forecast
At or below average
avg 2.2
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.2.

Rent & eviction protection

Is 420-422 Linden 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 area2,200 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0818028
Ownership

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

Mailing address
420 Linden St San Francisco CA 94102
Last sale
February 22, 2017

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.

422 Linden St, San Francisco, CA 94102
420 Linden St, San Francisco, CA 94102
Augrented Insights
Initial analysis

The two-unit residential building at 420-422 Linden Street in Hayes Valley, owned by Ramakrishnan Satish and constructed in 1909, has undergone several significant modifications and experienced various incidents over the past several years. In 2017, the property underwent substantial renovations including the installation of washer and dryer units in bathrooms, conversion of bathtubs to showers, and stove replacements in both units, with the work being properly permitted at a cost of $20,000. During this renovation period, there was one documented building complaint regarding construction activities reportedly spilling onto the sidewalk in June 2017, though this complaint is currently listed as not active.

More recently, the building has been the subject of multiple public health and environmental concerns. In 2024 alone, there were four public health complaints filed with the Department of Public Health, including two environmental health requests and a food-borne illness complaint. The property has also experienced recurring issues with garbage and debris on the street and sidewalk, with multiple reports in 2024 (including instances of needles and abandoned garbage), though most of these cases were resolved by city services. Additionally, there was one recorded building fire incident, classified as unintentional, though no civilian injuries were reported. A notable event in the building's history was a tenant buyout at 422 Linden Street in November 2016 for $39,757.13, involving one tenant. The most recent recorded complaints primarily relate to public health and sanitation issues rather than structural concerns, suggesting that while the building itself may be stable, there are ongoing challenges with maintenance of the surrounding environment and infrastructure.

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

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Risk rating

How 420-422 Linden 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
72ndpercentile

Out of 1027 buildings in this neighborhood, 288 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
81%
No DBI
violation
19%
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 (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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month risk forecast
Low failure risk 19%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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On the map

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8 found
The story over time

420-422 Linden St event timeline

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

2026
Plumbing Permit Jul 21
Work category: 1p; replace 40 gallon water heater, like for like in the inside closet.
Issued
311 RequestJul 16
Flooding

See all 6 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 420-422 Linden St apartments

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

Side by side

How 420-422 Linden St compares to the neighborhood

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