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18-20 Nobles Aly

Telegraph Hill, SF 94133 0104025 3 units · 3 fl · 1906

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 Telegraph Hill
At or below average
avg 1.2
0
FewerMore

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

Rent & eviction protection

Is 18-20 Nobles Aly 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 1906
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
Floors3
Year built1906
Total area2,800 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0104025
Ownership

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

Owner name
Desaintphalle Eustace & Dud
Mailing address
20 Nobles Aly San Francisco CA 94133
Last sale
083016

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.

20 Nobles Aly, San Francisco, CA 94133
18 A Nobles Aly, San Francisco, CA 94133
18 Nobles Aly, San Francisco, CA 94133
Augrented Insights
Initial analysis

The property at 18-20 Nobles Alley is a three-story, multi-family residential building constructed in 1906, currently containing three units. The building has undergone significant renovations and improvements over the past several years, with the most substantial work occurring in 2020-2021, including the conversion of garage/storage space into habitable space for unit #20, installation of sprinklers, comprehensive plumbing upgrades, and bathroom remodels in both units. These improvements were accompanied by electrical upgrades including new panels and fixtures, completed in accordance with relevant safety standards.

The building's history includes several notable events, particularly regarding the garage situation which prompted a Notice of Violation in 2016 regarding unpermitted garage work from the late 1990s. This led to a series of corrections in 2017-2018, where the unpermitted garage door was removed and the facade was restored to its original condition. The property has also been involved in multiple renovation-related complaints dating back to 2015-2019, though these were generally resolved through proper permitting processes. Recent improvements have focused on safety and modernization, including the installation of sprinklers, electrical upgrades, and comprehensive bathroom renovations, with all permits showing as completed. The building's historic character has been preserved through careful restoration work, and recent records indicate no active violations or complaints.

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

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Risk rating

How 18-20 Nobles Aly'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
63th percentile

Out of 684 buildings in this neighborhood, 253 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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

DBI complaints, owner's portfolio

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

Neighborhood location

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

12-Month severity forecast
No violation 73.3%
Moderate concern 21.0%
Severe concern 5.7%
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

18-20 Nobles Aly event timeline

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

2025
311 Request Apr 27
Other illegal parking
Parking Enforcement

See all 17 events

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

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Every record we have

Full data for 18-20 Nobles Aly 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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