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412 Madrid St

Excelsior, SF 94112 6080053 2 units · 2 fl · 1991

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 Excelsior
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Excelsior average of 1.4.

Rent & eviction protection

Is 412 Madrid 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 1991
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units2
Floors2
Year built1991
Total area1,989 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6080053
Ownership

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

Owner name
Wu Wanglan
Mailing address
355 Hale St San Francisco CA 94134
Last sale
073021

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 412 Madrid Street in the Excelsior neighborhood, owned by Wu Wanglan, is a 2-story flats and duplex structure built in 1991. The property underwent significant renovations in 2018, including a complete kitchen and bathroom remodel in the lower unit with associated plumbing and electrical work totaling approximately $35,000. A substantial series of building violations was recorded in September 2017, involving issues with carbon monoxide alarms, smoke detectors, cockroach infestation, water damage, weatherproofing of siding, ventilation problems, and interior surface maintenance needs. All these violations were officially abated by February 2018, following a final warning letter issued in October 2017 and a director hearing in January 2018.

The building's maintenance history shows attention to critical infrastructure, with repairs to back stairs and decks completed in 2014 and various building modifications in 1991, including the elimination of sprinklers and a revision to reduce occupancy. More recently, there have been multiple parking-related complaints near the property, with several incidents of vehicles blocking driveways between 2023-2024, and a current open issue regarding property damage involving urban forestry. There have also been some sanitation-related concerns in 2023 and 2024, particularly regarding garbage and debris. While the major structural and safety violations from 2017-2018 have been resolved, ongoing parking and outdoor maintenance issues have persisted in more recent years.

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

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Risk rating

How 412 Madrid 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
82th percentile

Out of 337 buildings in this neighborhood, 61 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Construction spend, owner's portfolio

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

12-Month severity forecast
No violation 74.4%
Moderate concern 14.8%
Severe concern 10.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

412 Madrid St apartment reviews

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The story over time

412 Madrid St event timeline

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

2025
DBI Complaint Dec 12
I need a window strip, it is really cold. it is very cold and it gets mist up here. i am on the bottom flow. i am sick and elderly. the management here will not help with this.
Housing Inspection Services

See all 1 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 412 Madrid 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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