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422 Green St

Telegraph Hill, SF 94133 0115013 2 units · 1 fl · 1911

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Telegraph Hill
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Telegraph Hill average of 1.2.

Rent & eviction protection

Is 422 Green 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 1911
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.

Building characteristics
Units2
Floors1
Year built1911
Total area1,295 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0115013
Ownership

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

Owner name
Subbiah Natarajan & Duraira
Mailing address
422 Green St San Francisco CA 94133
Last sale
021920

Landlord portfolio

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

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Augrented Insights
AI summary

The two-unit residential building at 422 Green Street in Telegraph Hill, owned by Subbiah Natarajan & Duraira, has undergone significant renovation work in recent years, particularly in 2019, when extensive improvements were made including kitchen and bathroom remodels, installation of skylights, siding replacement, window upgrades, and entry door replacements. This work, totaling approximately $68,000 in interior renovations and $15,000 in exterior updates, was well-documented through building, plumbing, and electrical permits, all of which were completed successfully. The building has a troubling history from 2003 when a complaint revealed unauthorized basement conversions and safety deficiencies including inadequate egress, natural light, ventilation, and missing fire safety equipment, resulting in violations that were finally abated in 2004. Two fire safety violations were issued in 2006 regarding smoke detector requirements, though these appear to be historical and related to malfunctioning systems rather than ongoing safety concerns.

Recent activity at the property has primarily involved routine urban maintenance issues, as evidenced by multiple 311 calls between 2020 and 2024, mostly concerning abandoned vehicles and street cleaning matters. Several planning records from 2020-2021 indicate proposals for significant redevelopment including demolition and replacement with a new building, though these applications were ultimately withdrawn. The property underwent substantial improvements in 2019, including the installation of a new furnace and comprehensive updates to bathroom and kitchen facilities, suggesting that major renovation needs were addressed. The building's violation history, while concerning, appears to have been addressed through proper permitting and remediation, and no active violations or complaints are currently on record.

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Risk rating

How 422 Green 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
75th percentile

Out of 684 buildings in this neighborhood, 171 are predicted to be safer.

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.

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 severity forecast
No violation 85.3%
Moderate concern 9.1%
Severe concern 5.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

422 Green St apartment reviews

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The story over time

422 Green St event timeline

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

2026
311 Request Mar 30
Garbage and debris
mattress
311 RequestMar 02
Garbage and debris

See all 6 events

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

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Every record we have

Full data for 422 Green 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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