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4330-4332 20Th St

Eureka Valley/Dolores Heights, SF 94114 2697017 2 units · 2 fl · 1900

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 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 4330-4332 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 1900
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 1900
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 built1900
Total area1,950 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2697017
Ownership

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

Owner name
Mailing address
Aghamiri Mostafa-msasa Prop 3031 Tisch Way San Jose CA 95128
Last sale
071819

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.

4332 20th St, San Francisco, CA 94114
4330 20th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 4330-4332 20th Street is a two-unit, two-story multi-family residential building located in the Eureka Valley/Dolores Heights neighborhood, constructed in 1900 and currently owned by 4330 20th St LLC. The building has undergone several significant renovations, with the most substantial work occurring in 2018, including comprehensive electrical upgrades (replacing 80-amp service with 200-amp service for both units), complete rewiring of both units with new LED lighting, and extensive plumbing work comprising repiping of both floors, new drainage vents, and gas lines. Recent maintenance includes a $19,000 repair and replacement of the supporting system at the rear storage area completed in 2023, and historical records show previous improvements such as siding replacement (2018), kitchen and bathroom remodels (2018), and bathroom remodeling (2013). The building has faced several compliance issues, including past violations regarding roof drainage and flue installation (2012) and lead paint concerns (2009), though these were all officially abated by 2014.

Recent and ongoing concerns include an active complaint from 2018 regarding improper drainage of a new patio reportedly causing flooding issues for the downhill neighbor, and a sewage backup incident reported in March 2022. The property has experienced periodic maintenance issues over the years, including exterior paint problems (2009-2011), though no current violations are on record. Recent service calls (2020-2024) have primarily been related to street cleaning and sidewalk maintenance. The building underwent tenant buyouts in October 2017, with both units vacated for $70,000. High-profile recent improvements and regular maintenance suggest ongoing investment in the property's upkeep, though prospective tenants should note the older building's history of plumbing and drainage-related issues.

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

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Risk rating

How 4330-4332 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
75th percentile

Out of 1278 buildings in this neighborhood, 320 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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.

Construction spend, owner's portfolio

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

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 70.8%
Moderate concern 17.6%
Severe concern 11.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

4330-4332 20Th St apartment reviews

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The story over time

4330-4332 20Th St event timeline

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

2025
Planning Record Oct 13
CASE CLOSED: Insufficient information for active enforcement case. No Violation. COMPLAINT SUBMITTED: Listed short term rental in violation of Intermediate Occupancy Law.
Closed - No Violation

See all 4 events

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

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Every record we have

Full data for 4330-4332 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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