Free SF apartment background check

1218 18Th Ave

Inner Sunset, SF 94122 1733039 4 units · 2 fl · 1929

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Sunset
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Inner Sunset average of 1.1.

Rent & eviction protection

Is 1218 18Th Ave 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 1929
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1929
Total area3,800 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1733039
Ownership

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

Owner name
Mak Gordon Koon Man
Mailing address
1218 18th Ave Apt 4 San Francisco CA 94122
Last sale
111020

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 4-unit, 2-story multi-family residential building at 1218 18th Avenue in San Francisco's Inner Sunset neighborhood has undergone significant renovations and faced several regulatory challenges in recent years. Most notably, in 2022-2023, substantial improvement work was completed, including kitchen and bathroom remodels, adding bathrooms and bedrooms, replacing all unit windows, installing tankless water heaters, and upgrading electrical systems in all four apartments. This work, while ultimately completed, generated multiple complaints during 2022-2023 regarding potential scope violations, including concerns about debris disposal methods and unauthorized demolition work. Historical records show ongoing maintenance and upgrades have been performed since at least 1992, including window replacements, plumbing improvements, and roof maintenance, with the most recent major roof work completed in 2013 costing $7,000. The building has undergone routine housing inspections in 2002, 2009, 2018, and 2019, with some violations noted, including fire safety and lead paint concerns, though these were subsequently resolved. The property is currently maintained by owner Mak Gordon Koon Man and continues to receive regular upgrades to maintain residential standards and improve tenant comfort.

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

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Risk rating

How 1218 18Th Ave'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
28th percentile

Out of 1493 buildings in this neighborhood, 1075 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
69%
No DBI
violation
31%
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.

DBI tenant complaints (past 7 years)

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

12-Month severity forecast
No violation 56.4%
Moderate concern 20.2%
Severe concern 23.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1218 18Th Ave apartment reviews

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The story over time

1218 18Th Ave event timeline

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

2023
DBI Complaint May 12
Going beyond the scope of work on current permits including 202304115495. demolition of the entire house down to the studs. major alteration throughout without plan check review or approved plans. seismic work.
Building Inspection Division
DBI ComplaintApr 24
Plumbing vent too close to property line and light well, not going to high roof. has permit to do hot water heater and windows in revised building permit but currently working on roof with blowtorch. concerned they are working beyond the scope of their permit.

See all 12 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1218 18Th Ave 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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