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1040 De Haro St

Potrero Hill, SF 94107 4159008 2 units · 2 fl · 1924

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 Potrero Hill
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 1040 De Haro 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 1924
2 or more units
2 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.

Building characteristics
Units2
Floors2
Year built1924
Total area2,540 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot4159008
Ownership

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

Owner name
Yew Mona
Mailing address
1040 De Haro St San Francisco CA 94107
Last sale
033121

Landlord portfolio

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

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Augrented Insights
Initial analysis

1040 De Haro Street is a two-unit, two-story multi-family residential building located in Potrero Hill, built in 1924 and currently owned by Yew Mona. The property has undergone significant improvements and maintenance over the past decade, with major renovations including a horizontal rear addition completed in 2017 ($35,000), multiple kitchen and bathroom remodels between 2011-2020 ($55,000 in 2020 alone), and essential infrastructure upgrades such as a complete reroofing in 2015 ($13,725) and electrical system overhaul in 2008 ($18,000). The building improvements have focused on modernizing essential systems, with new siding installations, window replacements, and comprehensive electrical and plumbing upgrades, including multiple furnace installations and ductwork updates.

The property has maintained a relatively stable condition with all major permits marked as complete, though there is one recent open issue regarding sidewalk tree root damage reported in July 2023. The building has experienced regular maintenance and upgrades, including safety and efficiency improvements such as new windows with modern U-factors, though it's worth noting that the 2012 proposal for a 245 sq. ft. third-floor expansion was cancelled. The area around the building has had typical urban maintenance issues, with multiple parking enforcement calls between 2022-2024, though these are external to the building's condition. A tenant buyout of $75,000 occurred in December 2021 at an adjacent property (1052 De Haro Street), though this does not directly affect the current building's status.

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

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Risk rating

How 1040 De Haro 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
60th percentile

Out of 726 buildings in this neighborhood, 290 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
79%
No DBI
violation
21%
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.

Neighborhood location

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

Neighborhood location

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 70.7%
Moderate concern 27.1%
Severe concern 2.3%
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

1040 De Haro St event timeline

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

2022
Building Permit Apr 26
Structural revision to bpa#201706270490
$1,500 · Complete
Plumbing PermitMar 16
Renew pp20200926245 for final inspection

See all 7 events

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

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Every record we have

Full data for 1040 De Haro 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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