Free SF apartment background check

101-107 Mayfair Dr

Jordan Park/Laurel Heights, SF 94118 1042001 4 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
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Jordan Park/Laurel Heights average of 0.9.

Rent & eviction protection

Is 101-107 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
4 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
Units4
Floors2
Year built1949
Total area4,104 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1042001
Ownership

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

Owner name
Randolph L & Katie W Yip Re
Mailing address
P O Box 1163 Mill Valley CA 94942
Last sale
010708

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.

101 Mayfair Dr, San Francisco, CA 94118
103 Mayfair Dr, San Francisco, CA 94118
105 Mayfair Dr, San Francisco, CA 94118
107 Mayfair Dr, San Francisco, CA 94118
Augrented Insights
Initial analysis

The 4-unit, 2-story apartment building at 101-107 Mayfair Drive, owned by Randolph L & Katie W Yip Re, was constructed in 1949 in the Jordan Park/Laurel Heights neighborhood. The property has undergone several maintenance and improvement projects over the years, including a kitchen cabinet update in 2011 valued at $4,500 and a sewer lateral replacement in 2016. Of particular note is a significant history of violations and complaints related to fire safety between 2005-2020, including illegal garage modifications, combustible storage issues, and multiple fire code violations that were eventually abated. The most recent fire safety concerns occurred in August 2020, when multiple violations were recorded regarding fire extinguishers and emergency lighting at another property with the same ownership. The building has also required various inspections and notices of violation, particularly in 2005, when there were multiple complaints about unauthorized garage modifications, illegal business operations, and safety hazards, though these issues were subsequently resolved. More recent routine maintenance includes a documented roof replacement in 1991.

The surrounding area has experienced ongoing urban challenges as evidenced by multiple recent 311 calls in 2024 regarding encampments and general cleaning needs, though these external issues are not directly related to the building's condition or management. Recent encampment reports were consistently addressed and resolved, indicating responsive municipal services in the vicinity. The building's management has generally complied with regulatory requirements following violations, as indicated by the "Closed - Abated" status on multiple historical complaints, though the frequency and nature of past violations suggest there have been periods requiring active oversight to ensure compliance with safety standards.

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

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Risk rating

How 101-107 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
53th percentile

Out of 272 buildings in this neighborhood, 128 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Estimated permit spend (past 7 years)

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 77.2%
Moderate concern 13.8%
Severe concern 9.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

101-107 Mayfair Dr event timeline

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

2025
311 Request Nov 12
Not offensive
pole

See all 5 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 101-107 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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