Free SF apartment background check

650 Masonic Ave

North Panhandle, SF 94117 1186012 12 units · 3 fl · 1923

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in North Panhandle
At or below average
avg 1.7
0
FewerMore

This building has 0 novs (7y), at or below the North Panhandle average of 1.7.

Rent & eviction protection

Is 650 Masonic 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 1923
2 or more units
12 units
Property type
Multi-Family Residential
Zoning
RH2
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1923
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units12
Floors3
Year built1923
Total area9,126 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1186012
Ownership

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

Owner name
Mailing address
Sutro Property Mgmt Po Box 885373 San Francisco CA 94188
Last sale
031821

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story, 12-unit multi-family residential building at 650 Masonic Avenue, owned by 5 C Properties LLC, has undergone significant improvements and renovations over recent years, most notably completing a mandatory soft-story retrofit in 2021 (with a revision in 2022) costing $70,500 to enhance seismic safety. The building's fire safety systems received recent attention, with a $32,500 upgrade completed in December 2023 to install low-frequency sounders in sleeping areas and improve the fire alarm system. Between 2019 and 2023, multiple units (including #2, #4, #6, and #12) underwent substantial interior renovations, including kitchen and bathroom remodels, electrical system upgrades, and plumbing improvements, with costs ranging from $25,000 to $40,000 per unit. The property has maintained compliance with safety inspections, including routine safety inspections in 2017 and 2022, with all identified issues being promptly corrected.

The building's maintenance record shows attention to both structural and aesthetic improvements, including the replacement of aluminum windows in 2013, garage door repairs in 2014, and general building maintenance. Recent 311 calls primarily relate to external issues such as sidewalk cleaning and parking concerns, rather than problems with the building itself. A sprinkler/standpipe systems issue was identified and corrected in September 2022, though this was the only recent fire safety concern. The property's most recent fire alarm system upgrade was completed in early 2024, demonstrating ongoing commitment to safety compliance. While there have been some complaints about construction noise and unauthorized work in the past, these issues were resolved, and there have been no recent tenant complaints filed through official channels. The building's tier 4 soft-story status indicates that all required seismic improvements have been completed and certified.

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

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Risk rating

How 650 Masonic 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
13th percentile

Out of 797 buildings in this neighborhood, 693 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
45%
No DBI
violation
55%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month severity forecast
No violation 23.0%
Moderate concern 64.4%
Severe concern 12.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

650 Masonic Ave apartment reviews

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On the map

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The story over time

650 Masonic Ave event timeline

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

2026
311 Request Jul 19
Public works
bsm request for service
311 RequestJul 19
Garbage and debris

See all 20 events

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

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Every record we have

Full data for 650 Masonic Ave apartments

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

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