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621-623 Alvarado St

Noe Valley, SF 94114 2803034 2 units · 3 fl · 1914

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 621-623 Alvarado 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 1914
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
Floors3
Year built1914
Total area3,455 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2803034
Ownership

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

Owner name
Alex Goldenberg & Karen Tom
Mailing address
Alex Goldenberg/karen Tomli 621 Alvarado St San Francisco CA 94114
Last sale
032718

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.

623 Alvarado St, San Francisco, CA 94114
621 Alvarado St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The three-story multi-family residential building at 621-623 Alvarado Street in Noe Valley, owned by Alex Goldenberg & Karen Tom, was built in 1914 and contains two units. The property has undergone significant improvements over the past decade, with the most recent work completed in 2022 involving the replacement of south and east facade windows at a cost of $45,000. Between 2014-2015, substantial updates were made including a complete system overhaul with new plumbing, electrical setups, and bathroom renovations in both units, though some related permits were subsequently cancelled or expired. The building received comprehensive modernizations including radiant floor heating installations, kitchen and bathroom remodels, and an electrical service upgrade.

The property has experienced several maintenance and compliance issues, particularly in 2020-2022, including a sewage backup incident, multiple sidewalk defect reports, and various parking violations involving blocked driveways. Notable structural improvements include the proposed expansion of a bathroom/dressing area into a bedroom and the addition of a roof deck with specified height limitations, though some permits from 2017 remain filed and their final status is uncertain. Historical planning records indicate various interior and exterior alterations have been approved over the years, with particular attention to maintaining compliance with building codes and requirements for private usable open space. Recent 311 calls primarily relate to parking enforcement and sidewalk maintenance issues, while utility systems have received regular updates and inspections through various permits.

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

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Risk rating

How 621-623 Alvarado 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 84.7%
Moderate concern 11.9%
Severe concern 3.4%
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

621-623 Alvarado St event timeline

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

2022
Building Permit Nov 03
Replace south and east facade windows with new in kind windows. same size and location not visible from the street. windows will meet requirements of residential code.
$45,000 · Complete

See all 1 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 621-623 Alvarado St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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