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349-351 Mississippi St

Potrero Hill, SF 94107 4039012 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 Potrero Hill
At or below average
avg 1.1
1
FewerMore

This building has 1 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 349-351 Mississippi 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
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
Floors2
Year built1900
Total area2,076 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot4039012
Ownership

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

Owner name
Nancy Niederhauser 2012 Rev
Mailing address
Niederhauser Nancy 349 Mississippi St San Francisco CA 94107
Last sale
062121

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.

349 Mississippi St, San Francisco, CA 94107
351 Mississippi St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The property at 349-351 Mississippi Street is a two-unit, two-story multi-family residential building located in Potrero Hill, built in 1900 and currently owned by Nancy Niederhauser 2012 Rev Trust. The building has undergone several significant renovations and maintenance work over the past four decades, with the most recent substantial improvements taking place in 2013, including window replacements, laundry relocation, kitchen updates, and deck additions, valued at $25,000. Earlier renovations included a 2005 project that added 13'x25' of interior space consisting of a bedroom and dining room, and a 2000 upgrade replacing gas pipes, furnaces, and water heaters in both units. The building has maintained regular upkeep, including roofing work in 2009, skylight installation in 1994, and various electrical and plumbing upgrades.

The property experienced a tenant buyout at 351 Mississippi Street in September 2023, with two tenants receiving $17,388. Notable accessibility issues were documented in 2019 when construction materials temporarily blocked a sidewalk, and in 2024 with a curb defect that was promptly resolved. The building's maintenance history shows consistent investment in improvements and infrastructure upgrades, with particular attention given to electrical systems, plumbing fixtures, and structural elements like windows and decks. The most recent general maintenance issues noted were primarily related to street cleaning and sidewalk use, with no significant safety concerns reported.

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

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Risk rating

How 349-351 Mississippi 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
70th percentile

Out of 726 buildings in this neighborhood, 218 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
82%
No DBI
violation
18%
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.

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

12-Month severity forecast
No violation 77.6%
Moderate concern 17.3%
Severe concern 5.1%
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

349-351 Mississippi St event timeline

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

2026
Building Violation (NOV) Apr 14 Serious
While on site for a scheduled final building inspection under pa #202601294875 (interior renovation of 2 bathrooms and 1 kitchen. work includes demo of existing plumbing fixtures, finishes, lighting, & adjustment of non structural walls. new fixtures, finishes, lighting, interior walls, & kitchen island to be installed). it was observed that contractor failed to call for a rough framing, insulation, fire penetrations, ducts, wet walls & drywall inspection. all fixtures and finishes were installed at time of inspection. code/section: sfbc 108.a.7.1 a monthly monitoring fee applies. code/section: sfbc 110a, table 1a-k
DBI ComplaintApr 14
Work concealed without inspections

See all 7 events

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

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Every record we have

Full data for 349-351 Mississippi 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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