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527 27Th Ave

Central Richmond, SF 94121 1517003A 2 units · 3 fl · 1915

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems 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 Central Richmond — not a forecast
Above average
avg 0.5
1
FewerMore

This building has 1 novs (7y), above the Central Richmond average of 0.5.

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 527 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 1915
2 or more units
2 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.

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 1915
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 built1915
Total area2,790 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1517003A
Ownership

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

Mailing address
Ta Yu Huang 1201 29Th Ave San Francisco CA 94122
Last sale
September 08, 2014

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story, two-unit multi-family residential building at 527 27th Avenue in the Central Richmond neighborhood, owned by the Huang 2014 Family Trust, has undergone several significant renovations and maintenance work since its construction in 1915. Most recently, in July 2023, a major remodeling project was completed in Unit 527, involving kitchen relocation, bedroom conversion, bathroom addition, and structural modifications, with associated plumbing and electrical work totaling $75,000. In November 2023, work was performed to address a building violation regarding unauthorized deck and stair construction in the rear yard, with the owner attempting to legalize a previously unpermitted 60-square-foot deck and stairs at a cost of $8,000. The building has experienced some maintenance challenges over the years, including historical issues with dry rot repairs in 2014, mildew remediation in 2005, and various infrastructure updates including a furnace replacement.

The property has exhibited some concerning recent patterns, particularly in 2024, with multiple infrastructure-related incidents including sewer system issues (backups and leaks in September and October 2024) and ongoing concerns about tree root damage to the sidewalk (as of July 2024). The building's permit history shows a pattern of unpermitted modifications being addressed through regularization processes, most notably the recent rear deck and stair situation. Historical improvements include significant renovation work in 1983 and various maintenance updates, though some older permits have expired without completion verification. The property has experienced typical urban neighborhood issues such as parking violations and street maintenance needs, as evidenced by multiple 311 calls, 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 527 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

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
95thpercentile

Out of 2250 buildings in this neighborhood, 112 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
93%
No DBI
violation
7%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month risk forecast
Low failure risk 7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

527 27Th Ave apartment reviews

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On the map

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The story over time

527 27Th Ave event timeline

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

2023
Building Permit Nov 20
Comply w/ nov# 202315359; repair and replace rear access stair new deck in rear yard 60sf to legalize from previous owner
$8,000 · Complete
Building Violation (NOV)Oct 31
Re-built deck and stairs attached to building in rear yard without a building permit and planning dept approval. deck approx. 8'x8' adjacent to property line. code/section: sfbc 103a monthly monitoring fee applies. code/section: sfbc 110a, table 1a-k

See all 7 events

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

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Every record we have

Full data for 527 27Th Ave apartments

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

Side by side

How 527 27Th Ave compares to the neighborhood

This building against comparable properties in Central Richmond. 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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