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519-521 Grove St

Hayes Valley, SF 94102 0807027 2 units · 3 fl · 1900

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 Hayes Valley
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.3.

Rent & eviction protection

Is 519-521 Grove 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 1900
2 or more units
2 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
Units2
Floors3
Year built1900
Total area2,325 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0807027
Ownership

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

Owner name
Seamus Naughten Revocable T
Mailing address
Seamus Naughten Trustee 519 Grove St San Francisco CA 94102
Last sale
021314

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.

521 Grove St, San Francisco, CA 94102
519 Grove St, San Francisco, CA 94102
Augrented Insights
Initial analysis

The property at 519-521 Grove Street is a three-story, two-unit multi-family residential building located in Hayes Valley, owned by the Seamus Naughten Revocable Trust and built in 1900. The building underwent significant renovations in 2012, including major structural work with a $75,000 foundation upgrade, new grade beams, and slab-on-grade installation, along with comprehensive unit remodels totaling $150,000 that added bathrooms and updated kitchens. This renovation period also saw the installation of new systems throughout the building, including plumbing upgrades (new water heaters, complete repiping, and gas system replacement), electrical rewiring with modern features including smoke detectors and appliance connections, and the addition of a roof deck.

Several maintenance and safety improvements have been made, including the installation of seismic gas valves in 2015, though there have been some issues during renovations, including a water line incident in September 2012 that temporarily affected a neighboring property (424 Ivy). The building has experienced typical urban maintenance challenges, as evidenced by recent (2024) 311 calls regarding footpath cleanliness and waste removal, though these do not directly reflect on the building's internal conditions. A gas leak incident was recorded, but fortunately resulted in no civilian injuries. The majority of historical complaints have been resolved, with recent cleaning requests primarily related to external street maintenance rather than internal building conditions. The property's extensive 2012 renovations and safety upgrades suggest a generally proactive approach to building maintenance, with no significant interior building violations or complaints currently active as of October 2023.

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

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Risk rating

How 519-521 Grove 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
77th percentile

Out of 1027 buildings in this neighborhood, 236 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

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 82.7%
Moderate concern 9.8%
Severe concern 7.5%
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

519-521 Grove St event timeline

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

2026
311 Request May 19
Sidewalk defect
collapsed sidewalk
311 RequestApr 09
Garbage and debris

See all 5 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 519-521 Grove St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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