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449-451 11Th Ave

Inner Richmond, SF 94118 1533010 2 units · 2 fl · 1906

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 Inner Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 449-451 11Th 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 1906
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
Floors2
Year built1906
Total area2,630 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1533010
Ownership

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

Owner name
Schaefer Trust
Mailing address
Schaefer Charles J & Mauree 449 - 451 11Th Ave San Francisco CA 94118
Last sale
000000

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.

451 11th Ave, San Francisco, CA 94118
449 11th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The Schaefer Trust-owned property at 449-451 11th Avenue is a two-unit, two-story multi-family residential building constructed in 1906, currently undergoing significant proposed modifications. The most recent substantial renovation work on record occurred in 2014, involving a comprehensive bathroom remodel costing $17,500 that included new plumbing, electrical work, and insulation improvements. The building has undergone several notable improvements over the past decades, including a $60,000 interior remodeling project in 2005 that involved wall modifications and ceiling work, and significant electrical system upgrades throughout multiple rooms in 2005, including rewiring of bedrooms, living rooms, and laundry areas. Earlier improvements include roof replacement (1998), rear stair reconstruction (1998), and window upgrades (1983).

The property has experienced recurring issues with driveway blocking in recent years, with multiple parking enforcement calls between February 2023 and October 2023, suggesting ongoing challenges with parking management in the area. Additionally, there are current exterior maintenance concerns, with recent reports of an overgrown tree blocking the sidewalk (October 2024) and a sidewalk defect (August 2024). Importantly, there is an active planning application under review proposing substantial modifications to the building, including excavation work, a rear horizontal addition, and interior renovations across both units, which would significantly alter the building's layout and living spaces. This proposed work represents the most significant planned change to the property in recent history, adding approximately 1,200 square feet of conditioned space with new bedrooms, bathrooms, and laundry facilities.

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

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Risk rating

How 449-451 11Th 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
44th percentile

Out of 1723 buildings in this neighborhood, 965 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
82%
No DBI
violation
18%
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.

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 80.7%
Moderate concern 14.5%
Severe concern 4.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

449-451 11Th Ave apartment reviews

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The story over time

449-451 11Th Ave event timeline

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

2025
Electrical Permit Nov 03
All unit electrical new wiring on the ground level, new sub panel & main service relocation only
Issued
Plumbing PermitOct 21
Work category: 2pb; remodel plumbing and install radiant heating system including boiler and flue.

See all 5 events

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

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Every record we have

Full data for 449-451 11Th 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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