Free SF apartment background check

1200 Mariposa St

Potrero Hill, SF 94107 3985010 3 units · 2 fl · 1907

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Potrero Hill
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 1200 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 1907
2 or more units
3 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.

Building characteristics
Units3
Floors2
Year built1907
Total area2,830 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3985010
Ownership

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

Owner name
Twin Tigers Living Trust
Mailing address
Joanna Suk-yi Trustee Po Box 1413 Fremont CA 94538
Last sale
051518

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

1200 Mariposa St, San Francisco, CA 94107
162 Texas St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The property at 1200 Mariposa Street in Potrero Hill is a two-story, multi-family residential building constructed in 1907, containing three units and currently owned by Twin Tigers Living Trust. The building's history reveals several notable events, most significantly a 2015 attempted permit to remove an illegal dwelling unit and associated plumbing fixtures, though this permit was ultimately cancelled. A sewer repair was completed in 2008, representing the only other permitted work on record.

Recent municipal service calls between 2021 and 2025 suggest ongoing maintenance and cleanliness challenges in the immediate vicinity of the building. These issues include multiple incidents requiring general street cleaning, graffiti removal, and various sign repairs throughout 2021-2022. More recent concerns include reports of abandoned vehicles (June 2024), waste (September 2023), and general service requests (May 2024). While these external issues don't necessarily reflect on the building's internal condition, they do indicate some level of maintenance required in the surrounding area.

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

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
Risk rating

How 1200 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
55th percentile

Out of 726 buildings in this neighborhood, 327 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
77%
No DBI
violation
23%
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.

Neighborhood location

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

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 severity forecast
No violation 60.5%
Moderate concern 30.0%
Severe concern 9.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1200 Mariposa St apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
Loading…
The story over time

1200 Mariposa St event timeline

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

2025
DBI Complaint Aug 26
Date last observed: 22-aug-25; identity of person performing the work: joanna kong is the property ma; floor: 2nd; exact location: main bldg; building type: residence/dwelling fire safety/fire escape; ; additional information: 2nd floor has severe mosquitos hazard from the abandoned backyard; to prevent mosquitoes in, 7/3/25, 3 sides of the window was taped but not able to stop mosquitos, 7/6/25, window was sealed entirely from the outside with a fixed screen; the window i referred to is the 2nd floor big bedroom window, which is the only fire escape window. ;
Housing Inspection Services
DBI ComplaintAug 25
Date last observed: 14-jul-25; identity of person performing the work: property manager lan and joann; unit: backyard; exact location: main bldg; building type: residence/dwelling insects/rodents; ; additional information: the backyard has lots of trash, abandoned items from previous tenants, also overgrowth weeds, attracts lots of mosquitoes affecting first floor and second floor tenants. i moved in 5/1/25, the backyard was not cleaned/taken care of completely until 7/24/25. i have lots of photos upon request:

See all 6 events

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

Unlock complete timeline
Every record we have

Full data for 1200 Mariposa St apartments

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

Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

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

Watch 1200 Mariposa St
Get alerted the moment a new violation or complaint is filed.