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136-138 Blake St

Lone Mountain, SF 94118 1090022 2 units · 2 fl · 1906

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 Lone Mountain
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Lone Mountain average of 0.9.

Rent & eviction protection

Is 136-138 Blake 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
2 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
Units2
Floors2
Year built1906
Total area2,508 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1090022
Ownership

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

Owner name
Denevi Christine M
Mailing address
138 Blake St San Francisco CA 94118
Last sale
072417

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.

136 Blake St, San Francisco, CA 94118
138 Blake St, San Francisco, CA 94118
Augrented Insights
Initial analysis

The two-unit multi-family residential building at 136-138 Blake Street in Lone Mountain, owned by Christine M Denevi, is a two-story flats and duplex structure built in 1906. The building has undergone several significant maintenance and improvement projects over the years, with the most substantial recent work being the replacement of 12 street-facing windows in 2006 at a cost of $19,000. Earlier improvements include termite repairs and the addition of a half bath in 1997, dry rot repair of the rear stair in 1995, and a garage remodel in 1983. Two permits from 2002 for reroofing work and from 1984 for a rear extension are noted as expired.

The property has experienced numerous parking-related issues in recent years, particularly between 2023 and 2024, with multiple complaints about driveway blocking and illegal parking. Eight parking enforcement calls were made in 2024 alone, including several cases of blocked driveways, though officers were often unable to locate the offending vehicles. The building's fire safety record shows three incidents since 2013, including an alarm system issue in 2013, a complaint in 2015 that was corrected on the same day, and an unintentional alarm transmission. While the building's age and history show regular maintenance and updates, the recent concentration of parking-related issues in the vicinity is notable, though these are primarily neighborhood-wide challenges rather than building-specific concerns.

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

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Risk rating

How 136-138 Blake 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
45th percentile

Out of 519 buildings in this neighborhood, 285 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 82.4%
Moderate concern 12.9%
Severe concern 4.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

136-138 Blake St event timeline

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

2025
311 Request Oct 26
Garbage and debris
city garbage can overflowing
311 RequestOct 24
Garbage and debris

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 136-138 Blake 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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