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19-21 Scott St

Hayes Valley, SF 94117 1260012 3 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 Hayes Valley
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.3.

Rent & eviction protection

Is 19-21 Scott 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
3 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units3
Floors2
Year built1900
Total area2,560 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1260012
Ownership

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

Owner name
John B Castleman & Dan A Ev
Mailing address
Castleman John B & Evans Da 17 Scott St San Francisco CA 94117
Last sale
050720

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.

19 A Scott St, San Francisco, CA 94117
21 Scott St, San Francisco, CA 94117
19 Scott St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The property at 19-21 Scott Street is a two-story, three-unit multi-family residential building located in Hayes Valley, built in 1900 and currently owned by John B Castleman & Dan A Ev. The building has undergone extensive renovations and maintenance work over the past decade, with significant improvements made to all units. Recent major work includes the installation of a new gas furnace and complete rewiring of Unit A in 2019, substantial interior remodels of various units in 2016 and 2018, and critical infrastructure work including foundation replacement and ground floor alterations in 2015 costing $180,000. The building has received comprehensive system upgrades, including window replacements, electrical system upgrades to 200 amps, plumbing improvements including sewer and water service line replacements, and safety upgrades such as fire alarm systems.

Historically, the building had several violations in 2002 related to safety and security, including issues with stair repairs, guardrails, and fire safety equipment, but these were all resolved by June 2003. More recent maintenance records show regular upkeep, though there have been some external issues reported in 2023 including sidewalk defects and graffiti on the front sidewalk. The property has undergone thorough inspections and improvements, with all major building systems updated and maintained, and there are no active building violations or complaints on record as of now. The most recent significant work involved addressing the property's electrical, plumbing, and HVAC systems to bring them up to modern standards, while also focusing on interior unit improvements and exterior maintenance.

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

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Risk rating

How 19-21 Scott 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
41th percentile

Out of 1027 buildings in this neighborhood, 606 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
62%
No DBI
violation
38%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 49.4%
Moderate concern 23.5%
Severe concern 27.1%
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

19-21 Scott St event timeline

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

2026
Building Permit Apr 14
Remove the north & south brick structured walls of the existing, exterior front stairs & replace w/ new concrete walls w stucco finish.
$20,000 · Issued

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 19-21 Scott St apartments

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

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