Free SF apartment background check

150 Grattan St

Cole Valley/Parnassus Heights, SF 94117 1277014 4 units · 2 fl · 1927

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 Cole Valley/Parnassus Heights
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Cole Valley/Parnassus Heights average of 0.9.

Rent & eviction protection

Is 150 Grattan 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 1927
2 or more units
4 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
Units4
Floors2
Year built1927
Total area3,950 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1277014
Ownership

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

Owner name
Stack Patrick J & Deirdre F
Mailing address
116 18th Ave San Francisco CA 94121
Last sale
012720

Landlord portfolio

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

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Augrented Insights
Initial analysis

Located at 150 Grattan Street in the Parnassus/Ashbury Heights neighborhood, this 4-unit, 2-story multi-family residential building was constructed in 1927 and is currently owned by Patrick J. Stack and Deirdre F. Stack. The building has undergone several significant improvements over the years, most notably a major fire alarm system upgrade completed in 2023, which included installing low-frequency sounders in sleeping areas to meet current safety standards. Recent improvements include a comprehensive kitchen renovation in 2020 that involved cabinet replacement and plumbing upgrades (costing $25,000), along with corresponding electrical work, while the building's infrastructure has been maintained through projects such as a 2011 water main replacement and the installation of exterior lights for security in 2016.

The building's history shows attention to maintenance and compliance, with several routine inspections and prompt responses to violations. In 2002, the property addressed multiple safety concerns including stair repairs, with all related violations being abated by July 2002. A series of complaints and repairs were documented in 2005-2006 regarding roof leaks and security issues, including self-closing doors and furnace repairs, which were also resolved. While there was a termite issue noted in 1990 and some historical violations related to fire safety and security requirements in the mid-2000s, these appear to have been addressed. More recently, the property has generated several parking-related complaints in 2024, though these are street-related issues rather than building-specific concerns. A fire alarm systems complaint was recorded and resolved in 2014-2015, showing ongoing attention to safety systems. The building's permit history demonstrates regular maintenance and upgrades to both interior and exterior elements, with particular attention paid to electrical systems, security lighting, and kitchen facilities.

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

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Risk rating

How 150 Grattan 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
36th percentile

Out of 526 buildings in this neighborhood, 337 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

Building age

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

12-Month severity forecast
No violation 72.7%
Moderate concern 16.2%
Severe concern 11.1%
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

150 Grattan St event timeline

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

2025
Building Permit Dec 03
Upgrade existing fire alarm system to comply with sffc section 1103.7.6.1 to meet 75 db in all sleeping areas.
$18,460 · Complete

See all 5 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 150 Grattan 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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