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1248-1262 Mason St

Nob Hill, SF 94133 0191019 9 units · 2 fl · 1912

This building has more problems than most buildings in this neighborhood. 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 Nob Hill
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 1248-1262 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 1912
2 or more units
9 units
Property type
Multi-Family Residential
Zoning
RC3
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
Units9
Floors2
Year built1912
Total area7,340 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0191019
Ownership

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

Owner name
George P & Elizabeth C Dask
Mailing address
Daskarolis Elizabeth C Trus 21 Knoll Ridge Wy Oakland CA 94619
Last sale
000000

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.

1252 Mason St, San Francisco, CA 94133
1258 Mason St, San Francisco, CA 94133
1262 Mason St, San Francisco, CA 94133
1252 A Mason St, San Francisco, CA 94133
1248 Mason St, San Francisco, CA 94133
1256 Mason St, San Francisco, CA 94133
1260 Mason St, San Francisco, CA 94133
1250 Mason St, San Francisco, CA 94133
1254 Mason St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The two-story, nine-unit multi-family residential building at 1248-1262 Mason Street, owned by George P & Elizabeth C Dask, has undergone several significant improvements and maintenance work since its construction in 1912. Most recently, in 2024, the building is actively undergoing accessibility improvements to its entrances as part of the Accessible Business Entrance (ABE) program, with multiple permits filed for work on the ground floor, including door replacements and sidewalk maintenance. The property has seen substantial window upgrades, with six retrofit wood windows installed in December 2023, and previous window replacement work completed in 2021. Major infrastructure improvements include a water service line upgrade to 1.5" copper completed in 2022, installation of a ductless mini-split system, and electrical system enhancements including new outlets and A/C power.

The building's maintenance record shows attention to safety issues, with prompt resolution of violations from a 2015 housing inspection related to carbon monoxide alarms and wooden stairs. Historical permits reveal various routine improvements, including dry rot repairs to exterior stairs in 2022 and lighting upgrades. Recent 311 calls for the property area in 2024 primarily concern parking enforcement and street maintenance, with no internal building issues reported. The building underwent regular routine safety inspections in 1999, 2004, 2008, and 2015, demonstrating consistent oversight of building conditions over the years.

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

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Risk rating

How 1248-1262 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
21th percentile

Out of 1125 buildings in this neighborhood, 889 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
25%
No DBI
violation
75%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 14.0%
Moderate concern 45.2%
Severe concern 40.8%
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

1248-1262 Mason St event timeline

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

2026
311 Request Feb 19
Encampment
Encampment

See all 19 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1248-1262 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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