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4430-4432 20Th St

Eureka Valley/Dolores Heights, SF 94114 2698017 2 units · 3 fl · 1898

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 4430-4432 20Th 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 1898
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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
Floors3
Year built1898
Total area2,479 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2698017
Ownership

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

Owner name
Henne Jeffrey Craig & Niede
Mailing address
C/o The Henne Group 425 2Nd St Ste 400 San Francisco CA 94107
Last sale
082306

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.

4430 20th St, San Francisco, CA 94114
4432 20th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The three-story multi-family residential building at 4430-4432 20th Street, situated in the Eureka Valley/Dolores Heights neighborhood, is a 1898 flats and duplex structure currently owned by Jeffrey Craig & Niede Henne. The building has undergone several significant renovations and maintenance projects over the past few decades, with notable work including a comprehensive deck reinforcement and repair project in 2001 (cost: $15,000), kitchen upgrade in 2001 ($50,000), and a first-floor powder room installation in 2010 ($7,000). A critical safety incident occurred in early 2010 involving improperly vented appliances near the rear stairwell, which resulted in violations that were abated by April 2010. The property experienced plumbing infrastructure work in 2016 with the replacement of approximately 13 feet of sewer lateral and new sewer trap installation.

Recent maintenance matters have primarily involved external issues, including multiple reports of tree root damage to the sidewalk (ongoing since 2024) and several parking-related complaints. The building has undergone various safety-related inspections, including a lead hazard warning in 2009 and associated exterior paint maintenance requirements. Maintenance activities have included electrical and plumbing upgrades, such as the installation of a new pellet stove in 1995 and various repairs documented through building permits. The property has had some historical issues with building code compliance, as evidenced by a 2019 complaint regarding unauthorized construction/demolition work, though this complaint is listed as not active. Recent plumbing-related service requests include a sewage back-up discharge incident from the side sewer vent in December 2024.

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

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Risk rating

How 4430-4432 20Th 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
17th percentile

Out of 1278 buildings in this neighborhood, 1061 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
52%
No DBI
violation
48%
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.

Building age

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

DBI tenant complaints (past 7 years)

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 29.5%
Moderate concern 38.4%
Severe concern 32.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

4430-4432 20Th St event timeline

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

2019
DBI Complaint Jul 30
Construction/demolition within building without appropriate building permits.
Building Inspection Division

See all 1 events

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

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Every record we have

Full data for 4430-4432 20Th St apartments

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

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