Free SF apartment background check

501-507 7Th Ave

Inner Richmond, SF 94118 1550001 4 units · 2 fl · 1922

This building has more problems than most buildings in this neighborhood. 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
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 501-507 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 1922
2 or more units
4 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
Units4
Floors2
Year built1922
Total area3,100 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1550001
Ownership

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

Owner name
Young Declaration Of Tr
Mailing address
Young Sue Ying Ng Trustee 400 Quintara St San Francisco CA 94116
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.

503 07th Ave, San Francisco, CA 94118
507 07th Ave, San Francisco, CA 94118
501 07th Ave, San Francisco, CA 94118
505 07th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The property at 501-507 7th Avenue is a two-story, 4-unit multi-family residential building constructed in 1922, currently owned by Young Declaration Of Tr. The building has undergone several significant renovations over the past 15 years, with the most recent work occurring in 2017 involving kitchen remodeling and electrical updates, though some permits related to this work have since expired. In 2010, substantial improvements were made to address health and safety concerns including the installation of new guardrails on both front and rear stairs, bathroom and kitchen remodels in units 505 and 507, and HVAC improvements including the installation of new furnaces and ventilation systems. The building has a documented history of regulatory compliance efforts, with multiple routine housing inspections revealing various violations between 2002 and 2015, particularly related to fire safety issues such as combustible storage and fire sprinkler requirements, though all these violations have been marked as abated.

Recent activity at the property has primarily involved external and parking-related issues, with multiple complaints about driveway blockages and parking violations occurring throughout 2021-2024. There have also been several street maintenance and parking sign issues reported in the vicinity of the building. Historical improvements to the property include a complete reroofing project completed in 2009 and plumbing upgrades including sewer repairs and bathroom renovations. The building's maintenance record shows regular attention to both routine upkeep and response to identified safety concerns, with most recent violations focusing on exterior maintenance rather than interior living conditions. While the property has experienced various maintenance and safety-related citations in the past, records indicate that these issues were generally addressed through appropriate repairs and improvements, suggesting a pattern of responsive maintenance management.

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

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Risk rating

How 501-507 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
25th percentile

Out of 1723 buildings in this neighborhood, 1292 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
73%
No DBI
violation
27%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 70.9%
Moderate concern 19.2%
Severe concern 9.9%
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

501-507 7Th Ave event timeline

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

2025
311 Request Dec 01
Sidewalk defect
collapsed sidewalk
311 RequestMay 09
Blocking driveway cite tow

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 501-507 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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