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177-179 Lexington St

Inner Mission, SF 94110 3589055 4 units · 2 fl · 1906

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood

Compared to a typical building in Inner Mission

At or below average

avg 2.6

0

FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

12-Month Maintenance Forecast

59%

(risk — lower is better)

Some concerns

Estimated probability of a DBI violation or complaint in the next 12 months.

7-YEAR TREND Violations + complaints / yr

'20

'21

'22

'23

'24

'25

'26

'27*

*Next year, projected from recent activity and predicted risk.

7-Year Historical Counts

0

NOVs (7y)

2

DBI Complaints (7y)

87

311 Calls (7y)

0

Fire Incidents

0

2nd NOVs

0

Dir. Hearings

0

City Atty

0

Permits (7y)

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Rent & eviction protection

Is 177-179 Lexington St 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 1906

2 or more units

4 units

Property type

Multi-Family Residential

Zoning

RH3

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

Units	4
Floors	2
Year built	1906
Total area	2,584 sq ft
Property type	Multi-Family Residential
Tax status	None
Blocklot	3589055

Ownership

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

Owner name

Hor Cheung & Mak Chui Yung

Mailing address

1324 Felton St San Francisco CA 94134

Last sale

000000

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.

177 Lexington St, San Francisco, CA 94110

179 Lexington St, San Francisco, CA 94110

Augrented Insights

Initial analysis

The 2-story, 4-unit multi-family residential building at 177-179 Lexington Street in the Inner Mission, owned by Hor Cheung & Mak Chui Yung, has experienced several significant maintenance and safety issues over the past two decades. Most recently, in April 2023, tenants reported multiple problems including broken walls, plumbing issues, electrical problems, old windows, a significantly aged refrigerator, and recurring hot water issues. This followed a pattern of concerning habitability complaints, such as a 2021 report of fire debris in the basement, and an April 2015 complaint about lack of hot water and heat. Historical records show more serious infrastructure issues, including a 2008 complaint documenting lack of heat, pest problems, electrical issues, and damaged rear exterior stairs, which were subsequently repaired in 2009-2013 due to dry rot and loose stairs concerns.

The building's history includes a cluster of safety and maintenance violations documented in January 2004, which were all abated by February 2004, covering a range of issues from fire safety (such as egress obstruction and fire extinguisher concerns) to building condition problems (including stair repairs and window maintenance). More recent concerns have centered around general maintenance issues such as garbage management, with multiple 311 calls in 2023-2024 regarding debris and abandoned items near the property. The building underwent several inspections and permit processes, including plumbing repairs to a gas line nipple in 2009 and various other maintenance work, though some permits indicate minimal costs of $1.00, suggesting administrative purposes rather than substantial work. The property's record shows a persistent pattern of maintenance challenges over time, with many complaints focusing on basic services like heat, hot water, and building integrity. The most recent building-related issues appear to revolve around general cleanliness and debris management, as evidenced by multiple 311 calls in 2023-2024 regarding garbage and street cleaning matters.

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

Risk rating

How 177-179 Lexington St'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

19th percentile

Out of 2380 buildings in this neighborhood, 1928 are predicted to be safer.

RiskiestSafest

Predicted 12-month outcome

41%

No DBI
violation

59%

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.

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

12-Month severity forecast

No violation 26.2%

Moderate concern 47.2%

Severe concern 26.7%

Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.

Apartment reviews

177-179 Lexington St apartment reviews

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On the map

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The story over time

177-179 Lexington St event timeline

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

2026

311 Request May 20

Parking on sidewalk

Parking Enforcement

311 RequestMay 20

Other illegal parking

See all 8 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 177-179 Lexington St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

What this is

Permits issued by the SF Department of Building Inspection for new construction, alterations, and repairs. Includes estimated cost and current permit status.

Permit #	Description	Cost	Filed	Status
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What this is

Plumbing permit applications filed with the SF Department of Building Inspection. Covers plumbing installation, repair, and replacement work.

Permit #	Description	Filed	Status
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What this is

Electrical permit applications filed with the SF Department of Building Inspection. Covers electrical wiring, panel upgrades, and related work.

Permit #	Description	Filed	Status
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What this is

Notices of Violation issued by the SF Department of Building Inspection for code violations. Unresolved notices can escalate to legal action.

Date Filed	Complaint #	Description	Item	Category	Status
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What this is

Complaints filed with the SF Department of Building Inspection about code violations. Tracks the complaint lifecycle from filing through abatement or referral.

Complaint #	Date Filed	Date Abated	Division	Status	Description
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What this is

Planning Department project entitlements — discretionary review, conditional use, variances, and environmental review for this parcel.

Address	Opened	Closed	Status	Description	Applicant
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What this is

Planning Department administrative and compliance records that are not full project entitlements — pre-application meetings, code violations, and referrals.

Address	Opened	Closed	Status	Description	Applicant
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What this is

SFFD fire incidents geo-joined to this parcel. Covers structure fires, alarms, and emergency responses with injury and fatality counts.

Date	Situation	Civilian Injuries	Civilian Fatalities
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What this is

Fire code violations issued by the SFFD. Tracks corrective actions required and resolution status for fire safety code enforcement.

Violation Date	Description	Corrective Action	Status	Close Date
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What this is

Fire code complaints received by the SF Fire Department geo-joined to this parcel. Includes complaint type, disposition, and outcome.

Received	Description	Disposition Date	Disposition
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What this is

SF 311 service requests geo-joined to this parcel. Includes maintenance complaints, street/sidewalk issues, and quality-of-life requests.

Opened	Type	Agency	Category	Details	Status
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What this is

Buildings subject to SF's mandatory soft-story seismic retrofit program. Unreinforced multi-story wood-frame buildings must meet compliance tiers.

Tier	Status
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What this is

Tenant buyout (Ellis Act pre-cursor) agreements recorded with the SF Rent Board. Tracks amounts paid to tenants to vacate rent-controlled units.

Disclosure Date	Buyout Date	Amount	Tenants
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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning