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830 Prague St

Croker Amazon, SF 94112 6441009 4 units · 2 fl · 1917

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 Croker Amazon
At or below average
avg 2.9
0
FewerMore

This building has 0 novs (7y), at or below the Croker Amazon average of 2.9.

Rent & eviction protection

Is 830 Prague 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 1917
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH1D
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
Units4
Floors2
Year built1917
Total area3,090 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6441009
Ownership

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

Owner name
Mary G Mendieta Family Trus
Mailing address
Mendieta Mary G Trustee 739 Miramar Ave San Francisco CA 94112
Last sale
121001

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story, four-unit multi-family residential building at 830 Prague Street, owned by the Mary G Mendieta Family Trust, has a lengthy maintenance and compliance history since its construction in 1917. The property has undergone several recent improvements, including the installation of energy-efficient retrofit vinyl windows in early 2024 and late 2023. However, the building has experienced persistent fire safety issues, with documented violations for multiple fire code violations occurring annually from 2018 through 2024. Notable historical concerns include significant fire damage repair work in 2000, structural maintenance including roof replacement and stair repairs in 2001, and exterior stucco work in 2001.

Recent maintenance activities include a gas houseline extension and electrical service upgrade in 2014, though some electrical permits from that period are now expired. The property has been subject to various structural and safety inspections, with notable complaints in the past regarding unauthorized living space in a backyard shed (2012) and life safety concerns about electrical systems in a rear cottage (2000). More recent building issues have centered around fire safety compliance, with violations noted for problems including door maintenance, alarm systems, and sprinkler system service requirements. The building has also experienced various infrastructure and maintenance issues in the surrounding area, as documented in recent 311 calls, including sewer maintenance, sidewalk defects, and tree root-related problems.

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

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Risk rating

How 830 Prague 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
74th percentile

Out of 119 buildings in this neighborhood, 31 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

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.

12-Month severity forecast
No violation 75.7%
Moderate concern 9.9%
Severe concern 14.4%
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

830 Prague St event timeline

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

2024
Building Permit Jan 31
Replace 4 window with retrofit vinyl window. not street visible. u-factor 0.30 .
$6,913 · Complete

See all 2 events

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

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Every record we have

Full data for 830 Prague 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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