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2880 21St St

Inner Mission, SF 94110 4084018 2 units · 2 fl

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Inner Mission — not a forecast
At or below average
avg 2.7
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.7.

Rent & eviction protection

Is 2880 21St 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 unknown
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

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
Unknown
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Coverage unclear. AB 1482 turns on the certificate-of-occupancy date and property type — confirm the year the building was completed.

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 built
Total area2,184 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot4084018
Ownership

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

Mailing address
2495 Harrison St San Francisco CA 94110
Last sale
October 22, 2012

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.

2880 21st St, San Francisco, CA 94110
2495 Harrison St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 2880 21st Street in San Francisco's Inner Mission neighborhood is a two-unit, two-story multi-family residential building owned by Zachary and Courtney Klein, and is classified as "2 Dwellings on One Parcel." The building has undergone significant renovations and improvements since 2013, including the installation of a comprehensive fire sprinkler system ($14,857) in 2015-2016, complete plumbing upgrades including radiant heating systems and bathroom remodeling ($20,000), and electrical improvements such as solar panel installations (3.84 kW array) in 2020 and a dedicated NEMA 14-50 line in 2021. The property has been subject to several building complaints and violations, most notably in 2006 and 2017, including unauthorized construction work and occupancy issues, though these violations were ultimately abated. Recent infrastructure improvements include multiple street space permits and plumbing upgrades, with the most substantial recent work being the 2016 renovations that included stair modifications, siding replacement, and various interior improvements.

The building's maintenance and compliance record shows active management of both required safety systems (including fire sprinklers) and modernization efforts such as solar power installation. The property underwent significant changes in 2016, including an administrative change of address from 2495 Harrison Street to its current designation. Regular maintenance issues have been documented through 311 calls in 2024, primarily relating to street conditions and parking, though these are typical for urban areas and not specific to the building's condition. Historical records indicate the property has transitioned from a potentially unauthorized commercial use to its current residential status, with various permits and improvements showing ongoing investment in the building's infrastructure and safety systems.

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

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Risk rating

How 2880 21St 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

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
96thpercentile

Out of 2380 buildings in this neighborhood, 95 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
89%
No DBI
violation
11%
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.

Building age

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

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.

12-Month risk forecast
Low failure risk 11%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

2880 21St St apartment reviews

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On the map

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The story over time

2880 21St St event timeline

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

2026
311 Request Jul 16
Blocking driveway cite only
Parking Enforcement
Building PermitJul 10
On rear dwelling unit (2880 21st st) convert (e) uninhabited roof plane to usable space to include: acess stair to roof plane. 330 gross sq ft addition to contain: 1 bdr,1 ba, 215 useable sqft roof deck, 60 sqft fixed planter,electrical,mechanical,plumbing sprinkler work associated with the addition

See all 12 events

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

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Every record we have

Full data for 2880 21St St apartments

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

Side by side

How 2880 21St St compares to the neighborhood

This building against comparable properties in Inner Mission. 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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