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483-493 7Th Ave

Inner Richmond, SF 94118 1537017 6 units · 3 fl · 1910

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Richmond
Above average
avg 0.9
8
FewerMore

This building has 8 novs (7y), above the Inner Richmond average of 0.9.

Rent & eviction protection

Is 483-493 7Th Ave 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 1910
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1910
Total area6,960 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1537017
Ownership

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

Owner name
Lawrence D Chan Revoc Tr
Mailing address
Chan Lawrence David Trustee 610 4Th Ave San Francisco CA 94118
Last sale
052600

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.

493 07th Ave, San Francisco, CA 94118
483 07th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The 3-story, 6-unit multi-family residential building at 483-493 7th Avenue in San Francisco's Inner Richmond district, owned by Lawrence D Chan Revoc Tr, has undergone several significant structural and safety improvements since its construction in 1910. Most notably, the building completed a mandatory soft-story retrofit in 2017 at a cost of $50,000, bringing it into compliance with seismic safety requirements under SFBC Chapter 4D. The building has a documented history of routine housing inspections by Housing Inspection Services, with the most recent comprehensive inspection in 2017 revealing multiple safety concerns that required attention, including issues with fire safety systems, stair repairs, and carbon monoxide detector installation.

The property has experienced three fire-related incidents, though none resulted in civilian injuries, including one intentional building fire and two false alarms. Historical records show various maintenance and improvement work, including a kitchen and bathroom renovation in 2000 and back stairs repairs in 1985. Recent maintenance issues have primarily involved external matters with multiple reports of illegal parking and sidewalk parking violations between 2022 and 2025, along with some garbage and debris complaints. The building's most significant safety upgrades occurred in the past decade, including the installation of seismic braces for the hot water heater, fire extinguisher servicing, and various other safety improvements, though the frequency of 311 calls regarding external maintenance suggests ongoing attention is needed in this area.

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

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Risk rating

How 483-493 7Th Ave'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
12th percentile

Out of 1723 buildings in this neighborhood, 1516 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
58%
No DBI
violation
42%
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.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 55.8%
Moderate concern 27.8%
Severe concern 16.4%
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

483-493 7Th Ave event timeline

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

2026
311 Request Apr 14
Parking on sidewalk
Parking Enforcement

See all 5 events

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

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Every record we have

Full data for 483-493 7Th Ave 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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