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1720-1730 Washington St

Nob Hill, SF 94109 0598004 6 units · 3 fl · 1908

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 1720-1730 Washington 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 1908
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
POLK
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
Units6
Floors3
Year built1908
Total area9,402 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0598004
Ownership

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

Owner name
Sung Gee & Mei Oi Kwong Hue
Mailing address
Huey Chester K & Pong Sylvi 831 Gregory Court Fremont CA 94539
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.

1722 Washington St, San Francisco, CA 94109
1728 Washington St, San Francisco, CA 94109
1720 Washington St, San Francisco, CA 94109
1726 Washington St, San Francisco, CA 94109
1724 Washington St, San Francisco, CA 94109
1730 Washington St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The 6-unit, 3-story apartment building at 1720-1730 Washington Street in Nob Hill, owned by Sung Gee & Mei Oi Kwong Hue, has undergone significant improvements in recent years, most notably completing a mandatory soft story retrofit in 2017 (Tier 3) at a cost of $130,000. The property has received substantial updates to its safety systems, including a $42,000 fire alarm system upgrade in 2023 to comply with municipal requirements, and various electrical upgrades including panel replacements and new circuits. Recent building improvements have focused on updating utilities and amenities, with work including kitchen cabinet replacements, heating system upgrades, and plumbing improvements throughout multiple units between 2018 and 2023. The building experienced several maintenance issues in the 2002-2003 period, including mold, water damage, and fire safety concerns, though these were all resolved by May 2003.

There have been recurring concerns about unauthorized work and permit compliance, with three separate complaints between 2011 and 2022 regarding construction activities not properly permitted or exceeding approved scopes, including a current active complaint from May 2022 regarding renovation work allegedly causing excessive noise. The building's maintenance record shows regular updates to essential systems, including heating, water heating, and electrical infrastructure, with the most recent major works focusing on fire safety compliance and electrical system upgrades. Historical complaints from 2002-2003 indicated various building maintenance issues that have since been addressed, and the property has maintained its soft story retrofit compliance with a Certificate of Final Completion issued. Recent 311 calls primarily relate to external issues such as street cleaning and graffiti, rather than building-specific concerns.

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

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Risk rating

How 1720-1730 Washington 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
39th percentile

Out of 1125 buildings in this neighborhood, 686 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
52%
No DBI
violation
48%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Number of units

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

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month severity forecast
No violation 35.0%
Moderate concern 39.0%
Severe concern 26.0%
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

1720-1730 Washington St event timeline

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

2025
Plumbing Permit Nov 04
Remodel (e) kitchen and (2) bathrooms. add one shower stall with shower pan.
Issued
Plumbing PermitNov 04
Install tankless water heater.

See all 17 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1720-1730 Washington 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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