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2445-2447 Mariposa St

Inner Mission, SF 94110 4014001 64 units · 1983

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

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.

Rent & eviction protection

Is 2445-2447 Mariposa 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 1983
2 or more units
64 units
Property type
Multi-Family Residential
Zoning
M1
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.

Building characteristics
Units64
Floors
Year built1983
Total area
Property typeMulti-Family Residential
Tax statusNone
Blocklot4014001
Ownership

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

Owner name
Mhdc Mariposa Gardens Llc
Mailing address
474 Valencia St Ste 280 San Francisco CA 94103
Last sale
030221

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.

540 Potrero Ave, San Francisco, CA 94110
520 Potrero Ave, San Francisco, CA 94110
2447 Mariposa St, San Francisco, CA 94110
530 Potrero Ave, San Francisco, CA 94110
500 Potrero Ave, San Francisco, CA 94110
560 Potrero Ave, San Francisco, CA 94110
510 Potrero Ave, San Francisco, CA 94110
550 Potrero Ave, San Francisco, CA 94110
2445 Mariposa St, San Francisco, CA 94110
Augrented Insights
Initial analysis

Mariposa Gardens, located at 2445-2447 Mariposa St in the Inner Mission neighborhood, is a 64-unit multi-family residential building constructed in 1983. The property has undergone significant infrastructure upgrades and maintenance work in recent years, with particular attention to safety systems. Most notably, the building received a comprehensive fire alarm system replacement in late 2022 at a cost of $179,748, followed by additional modifications in 2023 including the installation of heat detectors in garages. A substantial structural retrofit was completed in 2022, focusing on garages and deck waterproofing, costing $5.5 million.

The building has faced various maintenance challenges over the years, with recent attention to electrical systems evident through the replacement of multiple subpanels in early 2023 (units 201, 203, 211, 212, 213, 219, 304, 312, and 320). Previous issues included problems with exterior bridges and decks, which were repaired in 2019, and water heating systems, with multiple boiler replacements occurring between 2011 and 2019. The property has experienced several fire safety-related incidents, including multiple alarm system activations, though none resulted in civilian injuries. A recent sleeping area violation was issued in December 2023, indicating ongoing fire safety compliance requirements.

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

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Risk rating

How 2445-2447 Mariposa 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
7th percentile

Out of 2380 buildings in this neighborhood, 2213 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
21%
No DBI
violation
79%
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.

Neighborhood location

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

12-Month severity forecast
No violation 18.4%
Moderate concern 70.2%
Severe concern 11.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

2445-2447 Mariposa St event timeline

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

2026
311 Request May 24
Blocking driveway cite only
Parking Enforcement

See all 24 events

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

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Every record we have

Full data for 2445-2447 Mariposa St apartments

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

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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