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521 Buena Vista Ave

Buena Vista Park/Ashbury Heights, SF 94117 2616016 2 units · 2 fl · 1909

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 Buena Vista Park/Ashbury Heights
At or below average
avg 1.6
0
FewerMore

This building has 0 novs (7y), at or below the Buena Vista Park/Ashbury Heights average of 1.6.

Rent & eviction protection

Is 521 Buena Vista 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 1909
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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
Floors2
Year built1909
Total area2,200 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2616016
Ownership

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

Owner name
Ingoglia Daniel Lawrence
Mailing address
521 Buena Vista Ave W San Francisco CA 94117
Last sale
021413

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The two-unit residential building at 521 Buena Vista Ave, located in the Buena Vista Park neighborhood, is a two-story flats and duplex structure built in 1909 and currently owned by Daniel Lawrence Ingoglia. The property has undergone significant renovations and improvements over the past decade, with the most substantial work occurring between 2010 and 2012, including a complete foundation replacement (2010), installation of radiant heating systems, bathroom additions, and extensive first-floor renovations costing over $250,000. More recent improvements include kitchen and bathroom remodeling in 2012, window replacements, and the installation of gas fireplaces.

The building's maintenance history shows regular upkeep, with earlier improvements including roofing (1996), kitchen and bathroom remodels (1996), and window replacements (1997). The property has experienced several recent issues typical for urban areas, including construction-related noise and sidewalk obstruction reports in 2023, though these were resolved promptly. Parking-related complaints have been the most frequent recent issues, with several reports in 2023-2024, including illegal parking and sidewalk obstruction claims. The building's documented history suggests regular maintenance and upgrading of essential systems, with no recorded safety violations or significant maintenance issues in recent years.

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

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Risk rating

How 521 Buena Vista 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
75th percentile

Out of 351 buildings in this neighborhood, 88 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

Construction spend, owner's portfolio

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

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 80.2%
Moderate concern 13.3%
Severe concern 6.4%
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

521 Buena Vista Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 521 Buena Vista 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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