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27-29 Stone St

Nob Hill, SF 94108 0192025 2 units · 3 fl · 1965

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 27-29 Stone 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 1965
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
CRNC
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 built1965
Total area2,567 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0192025
Ownership

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

Owner name
Sung Kai-Min E & Sung Conni
Mailing address
340 Pompano Cir Foster City CA 94404
Last sale
033121

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.

29 Stone St, San Francisco, CA 94108
27 Stone St, San Francisco, CA 94108
Augrented Insights
Initial analysis

The three-story multi-family residential building at 27-29 Stone Street in Nob Hill, owned by Sung Kai-min E & Sung Conni, consists of two units and was constructed in 1965. The property has undergone significant renovations in 2019, with Unit #27 receiving a $40,000 rehabilitation of the kitchen and bathroom, along with washer and dryer installations, and Unit #29 undergoing an $80,000 transformation including the addition of a bedroom and bathroom on the fourth floor, bathroom rehabilitations, washer and dryer installations, and sliding door replacements. Both units received comprehensive updates to their electrical systems and plumbing infrastructure, including new electrical fixtures such as lights, switches, and smoke detectors in Unit #29, and heating system repairs in November 2019. The building's maintenance history shows attention to structural needs, with re-roofing work initiated in 2017, while records from 2023-2024 indicate ongoing challenges with street-level debris and illegal parking issues in the vicinity.

The property's maintenance and improvement record demonstrates substantial investment in unit modernization and infrastructure maintenance, particularly during 2019 when most major works were completed. A recent planning application for Unit #29 was approved for window and door modifications on the fourth floor, maintaining the building's character while updating its features. While there have been some quality-of-life complaints in the surrounding area, such as noise during garbage collection and instances of abandoned debris, these appear to be primarily street-level issues rather than building-specific concerns. The building's permits and maintenance records suggest regular upkeep and modernization efforts by the owners, with no reported safety violations or structural issues in recent years, and all major renovation permits have been properly completed.

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

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Risk rating

How 27-29 Stone 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
99th percentile

Out of 1125 buildings in this neighborhood, 11 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
96%
No DBI
violation
4%
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.

Construction type (C)

The building's construction type on file, which affects its maintenance risk profile.

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 90.7%
Moderate concern 7.9%
Severe concern 1.4%
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

27-29 Stone St event timeline

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

2023
311 Request Sep 15
Garbage recycling collection
Noise Report - garbage recycling collection
311 RequestSep 05
Other illegal parking

See all 10 events

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

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Every record we have

Full data for 27-29 Stone 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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