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1511 Lyon St

Lower Pacific Heights, SF 94115 1055003 2 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 Lower Pacific Heights
At or below average
avg 1.6
0
FewerMore

This building has 0 novs (7y), at or below the Lower Pacific Heights average of 1.6.

Rent & eviction protection

Is 1511 Lyon 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
2 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
Units2
Floors2
Year built1900
Total area2,250 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1055003
Ownership

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

Owner name
Devlin Tad A
Mailing address
1511 Lyon St San Francisco CA 94115
Last sale
052121

Landlord portfolio

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

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Augrented Insights
Initial analysis

1511 Lyon Street is a two-unit, two-story multi-family residential building located in Lower Pacific Heights, owned by Tad A Devlin and constructed in 1900. The property has undergone significant renovations and maintenance work over the past decade, with major improvements occurring between 2016-2019 including comprehensive electrical upgrades (200-amp service, rewiring of both units), plumbing renovations (kitchen and bathroom remodels, appliance replacements), and infrastructure improvements such as sewer line replacement in 2010. Several building complaints were filed during 2017-2018 periods, particularly related to construction activities, including issues with unpermitted work, improper waste management, and a reportedly unauthorized tree removal. A notable tenant buyout occurred in December 2016, involving two tenants and totaling $35,040.

The building's more recent history (2020-2024) shows regular maintenance and compliance with city regulations, though there have been recurring issues with street-related matters including parking violations and garbage concerns, as evidenced by multiple 311 calls. Most recently, in 2024, there have been reports of encampments and debris issues in the vicinity. The property has undergone thorough electrical and plumbing system upgrades, with multiple permits issued to address various systems throughout both units, while some permits from 2016-2018 expired without completion, including a significant electrical upgrade to Unit A. The building's maintenance history suggests active management, though the pattern of expired permits and ongoing exterior maintenance issues indicates some challenges with permit compliance and exterior upkeep.

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

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Risk rating

How 1511 Lyon 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
84th percentile

Out of 670 buildings in this neighborhood, 107 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 81.3%
Moderate concern 14.7%
Severe concern 4.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1511 Lyon St apartment reviews

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The story over time

1511 Lyon St event timeline

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

2019
Building Permit Sep 23
Street space only
Issued

See all 1 events

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

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Every record we have

Full data for 1511 Lyon 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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