Free SF apartment background check

1227 47Th Ave

Outer Sunset, SF 94122 1703004 2 units · 1 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 Outer Sunset
At or below average
avg 1.8
0
FewerMore

This building has 0 novs (7y), at or below the Outer Sunset average of 1.8.

Rent & eviction protection

Is 1227 47Th 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 1907
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.

Building characteristics
Units2
Floors1
Year built1907
Total area1,978 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1703004
Ownership

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

Owner name
Simmons Michael Lee & Manju
Mailing address
15234 Drake Rd Guerneville CA 95446
Last sale
120412

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 1227 47th Avenue in the Outer Sunset, owned by Michael Lee and Manju Simmons, is currently undergoing substantial renovation work under an issued $300,000 permit from October 2023. This major renovation includes updates to both second and third levels, featuring a new flat roof with deck, bathroom additions, laundry facilities, and various structural improvements including replacing rear roof dormers with a matching pitched roof. The property has seen significant recent improvements to its infrastructure, including a complete electrical service upgrade to 200 amperes with three meter panels in February 2023, and a hot water heater installation in September 2010. Historical records show the building was originally constructed in 1907 as a three-story flats and duplex structure.

The property has experienced several maintenance and safety issues in the past, though most have been addressed promptly. Notable concerns included a 2010 complaint about various problems such as falling windows, heating issues, plumbing problems, and concerns about deteriorating decks and dry rot in stairs, though these were abated within a few days. An electrical safety complaint was filed in 2005 regarding hazardous wiring, which was resolved within three months. Two identical alarm system complaints were recorded in June 2017, with one marked as duplicate and the other showing corrected conditions. The building's historical maintenance records include reroofing work completed in 1990 and various other permits from 1983, indicating regular maintenance over the decades.

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

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Risk rating

How 1227 47Th 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

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
93th percentile

Out of 632 buildings in this neighborhood, 44 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
90%
No DBI
violation
10%
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.

Building age

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 80.3%
Moderate concern 16.2%
Severe concern 3.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1227 47Th Ave apartment reviews

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The story over time

1227 47Th Ave event timeline

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

2026
Plumbing Permit Mar 04
Hvac installation.
Issued

See all 8 events

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

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Every record we have

Full data for 1227 47Th Ave 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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