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1753-1779 Mason St

Russian Hill, SF 94133 0119001 15 units · 4 fl · 1906

This building has significantly more problems than most nearby buildings. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Russian Hill
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 1753-1779 Mason 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 1906
2 or more units
15 units
Property type
Multi-Family Residential
Zoning
RM2
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 1906
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
Units15
Floors4
Year built1906
Total area9,350 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0119001
Ownership

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

Mailing address
Steven C. Thrower 1 Bush St Ste 900 San Francisco CA 94104
Last sale
061813

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.

1765 Mason St, San Francisco, CA 94133
1767 Mason St, San Francisco, CA 94133
1773 Mason St, San Francisco, CA 94133
1771 Mason St, San Francisco, CA 94133
1759 Mason St, San Francisco, CA 94133
1775 Mason St, San Francisco, CA 94133
1761 Mason St, San Francisco, CA 94133
1777 Mason St, San Francisco, CA 94133
1757 Mason St, San Francisco, CA 94133
801 Union St, San Francisco, CA 94133
1755 Mason St, San Francisco, CA 94133
1779 Mason St, San Francisco, CA 94133
1763 Mason St, San Francisco, CA 94133
1769 Mason St, San Francisco, CA 94133
1753 Mason St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The 15-unit multi-family residential building at 1753-1779 Mason St in Russian Hill, built in 1906, has undergone numerous improvements and faced several challenges over the past decade. Most recently, there is an ongoing renovation in Unit 1775 (as of May 2024) involving significant updates to the bedroom, kitchen, and bathroom facilities, including new appliances and lighting (estimated cost: $65,000). The building successfully completed mandatory soft-story retrofit work in 2019, addressing seismic safety requirements with both residential and commercial improvements valued over $142,000. While the building's systems have generally been maintained, including a 2014 update to the electrical service with a new 400-amp single-phase main service, there have been periodic maintenance issues affecting tenant comfort, notably problems with heating systems in 2013-2014 that triggered multiple housing complaints and violations related to inadequate heat, which were subsequently resolved.

The property has experienced several infrastructure-related issues, including a significant complaint in July 2023 regarding a large hole in the ground potentially affecting basement areas, though this is recorded as not active. Historical violations from 2014 included window repairs, painting, and intercom system issues, primarily resolved by May 2014. The building's fire safety systems have been the subject of multiple inspections and complaints over the years, though most have been determined to have no merit, with the exception of a 2016 sprinkler system issue that was corrected. Recent 311 calls from late 2024 to early 2025 indicate typical urban issues such as sidewalk blockage and debris, though these are not indicative of building-specific concerns. The property appears to be actively maintained by 1753 Mason Street LLC, with recent unit renovations and compliance with current safety regulations such as the completed soft-story retrofit program.

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

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Risk rating

How 1753-1779 Mason 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
13th percentile

Out of 1133 buildings in this neighborhood, 986 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
26%
No DBI
violation
74%
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.

Property class

The assessor's property-class code, which correlates with building type and the violation rates the model expects. This code is grouped with other less-common classes.

Building size

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

12-Month severity forecast
No violation 7.2%
Moderate concern 55.6%
Severe concern 37.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1753-1779 Mason St apartment reviews

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The story over time

1753-1779 Mason St event timeline

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

2026
Fire Complaint May 24
Sleeping Area Requirement
Violation Issued
311 RequestApr 28
Garbage and debris

See all 21 events

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

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Every record we have

Full data for 1753-1779 Mason St apartments

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

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