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19-23 Mayfair Dr

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

This building has a substantial enforcement record over the last seven years, but recent activity points to a low risk of further maintenance problems in the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Jordan Park/Laurel Heights — not a forecast
Above average
avg 0.9
9
FewerMore

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

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1949
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

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
Mailing address
Piombo Richard G Jr & Debor 3048 Jackson St San Francisco CA 94115
Last sale

Landlord portfolio

Other SF properties this owner holds, with a risk rating 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
72ndpercentile

Out of 272 buildings in this neighborhood, 76 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

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 risk forecast
Low failure risk 11%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

19-23 Mayfair Dr apartment reviews

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On the map

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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.

Side by side

How 19-23 Mayfair Dr compares to the neighborhood

This building against comparable properties in Jordan Park/Laurel Heights. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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