Free SF apartment background check

811 Diamond St

Noe Valley, SF 94114 6506045 4 units · 2 fl · 1975

This building has more problems than most buildings in this neighborhood. 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 811 Diamond 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 1975
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
24NOE
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
Units4
Floors2
Year built1975
Total area4,030 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6506045
Ownership

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

Owner name
Mylett Living Tr
Mailing address
2527 25th Ave San Francisco CA 94116
Last sale
032395

Landlord portfolio

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

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Augrented Insights
Initial analysis

811 Diamond Street is a two-story, multi-family residential building located in Noe Valley, containing four units and constructed in 1975. The property has undergone several significant maintenance and improvement works, including a complete reroofing project in 2013 costing $13,000, and substantial decking renovations in 2006 which involved replacing waterproofing materials and installing new double-pane sliding doors on two rear decks measuring 4' x 18' each. The building's safety systems received attention in late 2002, when a routine safety inspection identified multiple fire safety deficiencies, including the need for smoke detectors in the lobby, directional signs, and fire extinguisher maintenance; all of these violations were promptly addressed and abated by January 22, 2003. While a blocked exit complaint was filed in August 2007, it was determined to have no merit by September of that year.

Recent history shows minimal major issues within the building itself, though there have been some maintenance matters and neighborhood incidents nearby, including reports of illegal postings (2021), and two separate reports of abandoned vehicles (2014) in close proximity to the building. The property underwent a routine safety inspection by Housing Inspection Services in January 2012, which was resolved on the same day. The building's documented history indicates that while there were significant fire safety concerns in late 2002, these were resolved in a timely manner, and no similar violations have been recorded in the past 20 years. The most recent building improvements and routine inspections suggest that the property has been maintained in compliance with safety requirements since the early 2000s.

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

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Risk rating

How 811 Diamond 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
23th percentile

Out of 1879 buildings in this neighborhood, 1447 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
61%
No DBI
violation
39%
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.

Neighborhood location

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 60.5%
Moderate concern 13.4%
Severe concern 26.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

811 Diamond St apartment reviews

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The story over time

811 Diamond St event timeline

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

2025
311 Request Mar 10
Amplified sound electronics
Noise
311 RequestFeb 19
Amplified sound electronics

See all 2 events

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

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Every record we have

Full data for 811 Diamond 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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