Free SF apartment background check

50 Himmelmann Pl

Nob Hill, SF 94133 0158032 4 units · 2 fl · 1923

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 Nob Hill
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 50 Himmelmann Pl 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 1923
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM2
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 built1923
Total area2,000 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0158032
Ownership

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

Owner name
Phillip & Sophia Ng Revoc T
Mailing address
50 Himmelmann Pl San Francisco CA 94133
Last sale
000000

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.

50 Himmelmann Pl, San Francisco, CA 94133
45 Salmon St, San Francisco, CA 94133
47 Salmon St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The four-unit multi-family residential building at 50 Himmelmann Place in Nob Hill, owned by the Phillip & Sophia Ng Revocable Trust, is a two-story flats and duplex structure built in 1923. Recent maintenance records show regular upkeep, with three completed reroofing projects in early 2023, costing between $12,000 and $13,000. The building underwent significant electrical system upgrades in 2004, including the installation of a new 200-amp overhead service with four meters (three for apartments and one common) and the removal of old knob-and-tube wiring in the garage, along with new lighting and electrical outlets.

The property has experienced recurring issues with street cleanliness and parking violations in recent months, particularly between September 2023 and April 2024, with multiple reports of loose garbage, debris, and parking obstructions. There were three documented cases of driveway blocking between January and April 2024, though enforcement officers were unable to validate the violations in two instances. The building's immediate vicinity has faced some urban challenges, including encampment reports (one open case from January 2024) and two incidents of offensive graffiti (September 2023 and October 2022), both of which were resolved through appropriate city cleanup services. The property has had regular interactions with city services for various maintenance and enforcement issues, though most of these have been promptly addressed and resolved by responsible authorities.

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

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Risk rating

How 50 Himmelmann Pl'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
67th percentile

Out of 1125 buildings in this neighborhood, 371 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
74%
No DBI
violation
26%
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.

Construction spend, owner's portfolio

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 56.6%
Moderate concern 20.6%
Severe concern 22.9%
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

50 Himmelmann Pl event timeline

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

2026
311 Request May 23
Public works
bses other

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 50 Himmelmann Pl 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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