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1590-1592 27Th Ave

Central Sunset, SF 94122 1872013 2 units · 2 fl · 1948

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 Central Sunset
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Central Sunset average of 0.7.

Rent & eviction protection

Is 1590-1592 27Th 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 1948
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 built1948
Total area2,380 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1872013
Ownership

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

Owner name
Mark Lai Ha
Mailing address
Mark Wah Lap 1592 27Th Ave San Francisco CA 94122
Last sale
031907

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.

1592 27th Ave, San Francisco, CA 94122
1590 27th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The two-unit residential building at 1590-1592 27th Avenue in the Central Sunset neighborhood is a two-story flats and duplex structure, built in 1948 and owned by Mark Lai Ha. The building's maintenance history shows three significant structural improvements: a $4,600 reroofing project completed in 2010, a kitchen and bathroom renovation completed in 2001 costing $3,500, and basement stairs and front wall repairs undertaken in 1985. More recent events indicate some concerning issues, particularly an environmental health complaint registered with DPH Environmental Health in January 2025, which was transferred to the SFDPH Healthy Housing Program. The property has been subject to numerous parking-related incidents in 2024, including multiple reports of abandoned vehicles, blocked driveways, and vehicles parked on sidewalks, though most of these cases were resolved with either the vehicles being gone upon inspection or other enforcement actions. There was also a report of an overgrown tree near a communication line in June 2024, which was addressed through the city's scheduled maintenance plan. Additional incidents in 2024 included one case involving hazardous materials (glass) that was resolved. While the building itself appears to have received regular structural maintenance over the decades, the recent spate of parking-related issues and the environmental health complaint warrant attention as they may impact resident quality of life.

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

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Risk rating

How 1590-1592 27Th 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
72th percentile

Out of 814 buildings in this neighborhood, 228 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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Construction spend, owner's portfolio

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 80.8%
Moderate concern 13.3%
Severe concern 5.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1590-1592 27Th Ave apartment reviews

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The story over time

1590-1592 27Th Ave event timeline

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

2023
311 Request Sep 18
Bulky items
Mattress

See all 1 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1590-1592 27Th 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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