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827-829 Cortland Ave

Bernal Heights, SF 94110 5661018 2 units · 3 fl · 1909

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Bernal Heights — not a forecast
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Bernal Heights average of 1.2.

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 827-829 Cortland 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 1909
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
NC2
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 1909
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
Units2
Floors3
Year built1909
Total area2,761 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5661018
Ownership

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

Owner name
Mailing address
Huang Hui Dan 833 Rutland St San Francisco CA 94134
Last sale
April 14, 2011

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.

827 Cortland Ave, San Francisco, CA 94110
829 Cortland Ave, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-story mixed-use building at 827-829 Cortland Ave in Bernal Heights, constructed in 1909, comprises two residential units plus ground floor commercial space and has undergone several significant modifications and faced multiple compliance issues over the years. Most recently, between 2018-2020, there were heating and electrical system problems that resulted in violations requiring permits for electrical and plumbing work, including the legalization of an upper floor half-bath and office/storage space. Prior to this, the building experienced various unauthorized modifications including unpermitted attic conversion to habitable space (2011-2012), illegal laundry facility installation (2011), and unauthorized bathroom additions (2011). The ground floor commercial space has changed uses multiple times, with documented conversions from retail to laundry mat (2011) and later attempts to convert to restaurant (2007), with various permit compliance issues. Earlier improvements included a 2004 electrical system upgrade (200 amp underground conversion), 2006 roofing work, and 2006-2007 repairs to address structural concerns including replacement of rotted stairs and deck modifications.

The property has a history of maintenance and compliance challenges, including multiple housing code violations related to heating systems (2018-2019), plumbing inconsistencies (2011), and ventilation issues (2011). The most recent violation, filed in October 2022, pertains to an unpermitted awning installation. While many of the historical violations have been resolved through permit corrections and work completions, the pattern of unpermitted modifications and subsequent enforcement actions suggests ongoing challenges with maintaining full code compliance. The building has also generated various service requests through 311, primarily related to street maintenance and parking issues, though these are not directly related to the building's condition or habitability.

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

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Risk rating

How 827-829 Cortland 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

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
27thpercentile

Out of 1276 buildings in this neighborhood, 931 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
62%
No DBI
violation
38%
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.

DBI tenant complaints (past 7 years)

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

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood location

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

12-Month risk forecast
Moderate failure risk 38%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

827-829 Cortland Ave apartment reviews

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On the map

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The story over time

827-829 Cortland Ave event timeline

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

2026
311 Request Jul 17
Encampment
Encampment
311 RequestJul 13
Not offensive

See all 11 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 827-829 Cortland Ave apartments

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

Side by side

How 827-829 Cortland Ave compares to the neighborhood

This building against comparable properties in Bernal 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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