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1027 De Haro St

Potrero Hill, SF 94107 4160060

This building has significantly more problems than most nearby buildings. 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 1027 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 1907
2 or more units
? units
Property type
Multi-Family Residential
Zoning
RH2
Possibly exempt. Built before 1979 but single-unit — single-family homes and condos may be exempt from the SF Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units
Floors2
Year built1907
Total area2,370 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4160060
Ownership

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

Owner name
Mauel, Peter M
Mailing address
1027 De Haro St San Francisco CA 94107
Last sale
082401

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story multi-family residential building at 1027 De Haro Street in Potrero Hill, owned by Peter M Mauel, has undergone several significant renovations since its construction in 1907. The most recent major work includes the replacement of the front yard metal guardrail completed in March 2023 at a cost of $13,030, and the installation of ten custom wood windows and restoration of wood siding in February 2022 costing $20,000. However, the property has experienced multiple issues with construction work and permit compliance in recent years. In April 2023, there were two building complaints regarding unauthorized construction work including electrical installations, dangerous working conditions, and obstruction of the sidewalk with construction materials, though these complaints were abated by June 2023. These followed a pattern of construction-related complaints, including a 2021 report of electrical issues and a 2002 complaint about unpermitted interior work, with the latter complaint being promptly resolved. The building's maintenance history includes a 1993 reroofing project, and the property has faced several parking-related issues in the surrounding area, with multiple complaints between 2019-2024 regarding illegal parking and abandoned vehicles, though these are external to the building itself. While there was a fire complaint filed in late 2019, it was determined to have no merit and was closed in May 2020.

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

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Risk rating

How 1027 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
15th percentile

Out of 726 buildings in this neighborhood, 617 are predicted to be safer.

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

Neighborhood location

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

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 58.4%
Moderate concern 24.4%
Severe concern 17.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

1027 De Haro St event timeline

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

2023
DBI Complaint Apr 07
Date last observed: 06-apr-23; time last observed: 2.30pm; identity of person performing the work: contractor (adam wooley landsc; floor: 1; unit: 1; exact location: main bldg; building type: residence/dwelling work beyond scope of permit; electrical work being performed w/o permit; work being done in dangerous manner; ; additional information: sidewalk completely blocked with men, construction materials & scaffold for new stucco work at street level. concrete work building new steps to street plus new tiling on steps and patio. no safety barrier for workmen. site has left construction materials, scaffolding and debris dumped on sidewalk for 5 weeks. owner showing no respect for anyone. interior of house has been under construction for a year without permits - when is it going to end? - wish to remain anonymous;
Building Inspection Division
Building PermitMar 31
Replace existing metal guardrail at front yard in-kind.

See all 6 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1027 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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