Free SF apartment background check

1009 Castro St

Noe Valley, SF 94114 3624028 2 units · 2 fl · 1900

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 Noe Valley
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Noe Valley average of 1.2.

Rent & eviction protection

Is 1009 Castro 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 1900
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 built1900
Total area2,608 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3624028
Ownership

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

Owner name
Calderon Benjamin & Hollman
Mailing address
1009 Castro St San Francisco CA 94114
Last sale
101014

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.

1009 A Castro St, San Francisco, CA 94114
1009 Castro St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit residential building at 1009 Castro Street in Noe Valley, owned by Benjamin Calderon and Hollman, has undergone several significant modifications since its construction in 1900. Most notably, a substantial renovation was initiated in 2020 with an approved permit costing $150,000, including a first-floor rear addition, a second-floor roof deck, interior stair modification, and third-floor improvements adding new bedroom, bath, and laundry facilities. This work, designed by architect Joram S Altman, is currently listed as issued. The property has had multiple infrastructure improvements, including a sewer line replacement in 2010 and plumbing work related to several sewage back-up incidents between 2012-2014, suggesting some historical challenges with the building's waste management systems.

Earlier modifications include various interior upgrades between 2012-2013, such as bathroom and bedroom reconfigurations, cabinetry improvements, and electrical work to modernize the second-floor bedroom. The building's exterior has seen maintenance attention, including front stair repairs in 2004 and several permit finalizations in 2008. More recent records show recurring parking enforcement issues around the property, with citations issued for vehicles blocking driveways or parking on sidewalks between 2018 and 2023. While these parking incidents don't directly relate to building conditions, they impact the general accessibility of the property. The most recent building modifications and improvements, including the significant 2020 additions, indicate ongoing investment in maintaining and enhancing the property's functionality and living space quality.

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

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Risk rating

How 1009 Castro 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
81th percentile

Out of 1879 buildings in this neighborhood, 357 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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.

Building age

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 85.2%
Moderate concern 10.7%
Severe concern 4.1%
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

1009 Castro St event timeline

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

2020
Planning Project Jul 16
1st floor rear addition; 2nd floor new roof deck on top of rear addition and new interior stair to garage; 3rd floor rear and side additions with new bedroom, bath and laundry.
Closed
Building PermitJun 30
1st floor rear addition; 2nd floor new roof deck on top of rear addition and new interior stair to garage; 3rd floor rear and side additions with new bedroom, bath and laundry.

See all 2 events

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

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Every record we have

Full data for 1009 Castro 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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