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471-473 28Th Ave

Central Richmond, SF 94121 1460001N 2 units · 2 fl · 1917

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
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 471-473 28Th 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 1917
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 1917
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
Floors2
Year built1917
Total area2,600 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1460001N
Ownership

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

Mailing address
Lynn Sharon Arsanis, Ttee 136 Bahama Reef Novato CA 94949
Last sale

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.

471 28th Ave, San Francisco, CA 94121
473 28th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 471-473 28th Avenue is a 2-unit, 2-story multi-family residential building located in San Francisco's Central Richmond neighborhood. Built in 1917, this flats/duplex structure has undergone several significant repairs and improvements over the past decades, with particular attention required for the rear stair area. A notable incident occurred in 2017 when unauthorized replacement of the rear stairs was reported, leading to a code enforcement investigation and subsequent Notice of Violation (NOV #201797371). The unauthorized work was completed by Abel C. Maldonado Construction, and to rectify the situation, a proper permit was obtained in September 2017 with a $20,000 cost to install new footings and framing, which was successfully completed by February 2018 and marked as abated.

Other maintenance work includes window replacements (2004), minor dry rot repairs (2000), and rear stair repairs (1987), demonstrating ongoing attention to the building's upkeep. A significant infrastructure upgrade was performed in December 2020 with the replacement of up to 20 feet of water service lines. Recent 311 calls primarily concern external matters such as parking violations and tree root issues, with one open case from April 2020 regarding damaging property from tree roots lifting sidewalk surfaces. The building's maintenance record shows consistent attention to structural elements, particularly regarding the rear stairs which have required multiple interventions over the years.

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

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Risk rating

How 471-473 28Th 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
47thpercentile

Out of 2250 buildings in this neighborhood, 1192 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
85%
No DBI
violation
15%
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.

Construction spend, owner's portfolio

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Building permits, owner's portfolio

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

12-Month risk forecast
Low failure risk 15%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

471-473 28Th Ave apartment reviews

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On the map

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The story over time

471-473 28Th Ave event timeline

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

2020
Plumbing Permit Dec 26
Work category: 1p; replacing up to 20’ of water service
Complete

See all 1 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 471-473 28Th Ave apartments

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

Side by side

How 471-473 28Th 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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