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19-23 Mayfair Dr

Jordan Park/Laurel Heights, SF 94118 1045023 3 units · 2 fl · 1949

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 Jordan Park/Laurel Heights
Above average
avg 0.9
9
FewerMore

This building has 9 novs (7y), above the Jordan Park/Laurel Heights average of 0.9.

Rent & eviction protection

Is 19-23 Mayfair Dr 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 1949
2 or more units
3 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
Units3
Floors2
Year built1949
Total area3,632 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1045023
Ownership

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

Owner name
Piombo Fmly Lvg Tr
Mailing address
Piombo Richard G Jr & Debor 3048 Jackson St San Francisco CA 94115
Last sale
121119

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 Mayfair Dr, San Francisco, CA 94118
21 Mayfair Dr, San Francisco, CA 94118
23 Mayfair Dr, San Francisco, CA 94118
Augrented Insights
Initial analysis

The three-unit, two-story multi-family residential building at 19-23 Mayfair Drive, owned by Piombo Family Living Trust, has undergone significant renovations and improvements over the past few years. Most notably, in 2023, substantial upgrades were made including the installation of two new furnaces, comprehensive kitchen and bathroom remodels, and the addition of soundproofing measures in ceilings. These improvements followed a cluster of violations filed in January 2023 related to mold/mildew, plumbing issues, fire safety concerns, and lead paint hazards, all of which were successfully abated by March 2023. Earlier improvements to the property included voluntary garage-level strengthening in 2019, window replacements in 2022, and a complete reroofing in 2012.

The property has a documented history of maintenance and improvements dating back to 1998, including a kitchen remodel with additional bathroom facilities. Recent attention from building inspectors has focused on both interior and exterior maintenance, with observations of construction activity and material movement noted in October 2023. The building's surroundings have experienced various urban maintenance challenges as evident from 311 calls, including reports of graffiti and illegal postings, though these are primarily exterior to the building itself. The property has undergone regular housing inspections in 2003 and 2008, and while some violations were recorded in 2023, they were promptly addressed within two months.

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

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Risk rating

How 19-23 Mayfair Dr'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
73th percentile

Out of 272 buildings in this neighborhood, 73 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

DBI tenant complaints (past 7 years)

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

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

12-Month severity forecast
No violation 52.2%
Moderate concern 38.1%
Severe concern 9.7%
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

19-23 Mayfair Dr event timeline

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

2023
Building Permit Oct 19
Added layer of sheetrock for sound proofing in ceiling in kitchen and livingroom.
$1,500 · Complete
DBI ComplaintOct 13
Date last observed: 02-oct-23; time last observed: 4pm; floor: ground and; unit: 21; exact location: main bldg; building type: residence/dwelling work w/o permit; ; additional information: there is a lot of construction material in the garage and being hauled up to the 2nd floor;

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 19-23 Mayfair Dr 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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