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508 Diamond St

Noe Valley, SF 94114 2772003 2 units · 1 fl · 1907

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 508 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 1907
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
Floors1
Year built1907
Total area1,840 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2772003
Ownership

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

Owner name
Wyrick Janice G
Mailing address
6 Plaza Loma Novato CA 94947
Last sale
000000

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.

508 A Diamond St, San Francisco, CA 94114
508 Diamond St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit multi-family residential building at 508 Diamond Street in Noe Valley, built in 1907, has undergone various significant improvements and maintenance work over the past several decades. The most recent major work includes a window replacement at the rear of the home in August 2023, and earlier in 2019, substantial plumbing work was completed involving bathroom fixtures. The building received several important infrastructure upgrades between 2009-2011, including the installation of a new furnace and ductwork (2009), repair of an underground gas line leak (2011), and bathroom renovations with additional fixtures (2014). A horizontal addition was successfully completed in 1990, and foundation reinforcement work was performed in 1998.

The property has experienced some ongoing concerns with tree-related issues, particularly regarding lifted sidewalk tree roots, with complaints logged in 2021 and most recently in October 2023, though these are not directly related to the building's structure. A sewage backup incident was recorded in January 2021 that was subsequently resolved. The period from 2021-2024 has seen multiple reports of abandoned vehicles in the vicinity, though these issues were consistently addressed by parking enforcement with varying outcomes. Notably, there was a tenant buyout at the adjacent 510 Diamond Street address in May 2015, involving two tenants and amounting to $47,500. The building's maintenance record shows regular upkeep and modernization efforts, with no significant safety violations or major repair issues on file in recent years.

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

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Risk rating

How 508 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
67th percentile

Out of 1879 buildings in this neighborhood, 620 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.

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.

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 76.5%
Moderate concern 15.3%
Severe concern 8.2%
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

508 Diamond St event timeline

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

2023
311 Request Oct 18
Trees - damaging property
Lifted sidewalk tree roots
Building PermitAug 03
Replacement of (1) window at rear of home. full frame installation. no size or location change. (e) wood (n) wood clad not street visible u-factor < or =0.30

See all 4 events

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

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Every record we have

Full data for 508 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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