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841-863 Scott St

Alamo Square, SF 94117 1180001 12 units · 3 fl · 1910

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 Alamo Square
Above average
avg 2.3
11
FewerMore

This building has 11 novs (7y), above the Alamo Square average of 2.3.

Rent & eviction protection

Is 841-863 Scott 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 1910
2 or more units
12 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units12
Floors3
Year built1910
Total area11,019 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1180001
Ownership

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

Owner name
Patrick J & Deirdre F Stack
Mailing address
Stack Patrick J & Deirdre F 116 18Th Ave San Francisco CA 94121
Last sale
100804

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.

849 Scott St, San Francisco, CA 94117
851 Scott St, San Francisco, CA 94117
863 Scott St, San Francisco, CA 94117
841 Scott St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-story, 12-unit multi-family residential building at 841-863 Scott Street in Alamo Square, owned by Patrick J & Deirdre F Stack, has undergone several significant renovations and faced various maintenance challenges since its construction in 1910. Most notably, the building completed a mandatory soft-story retrofit in 2017 (at a cost of $75,000), demonstrating compliance with seismic safety requirements. Recent improvements include a completed kitchen and bathroom renovation in 2019 (costing $26,759) and the installation of a new exterior flue for the boiler in 2023. However, the building has experienced recurring issues with its fire safety systems, as evidenced by recent violations in 2024 regarding alarm systems and fire extinguishers, and previous concerns dating back to 2009 and 2017.

The property has faced multiple interior maintenance challenges, particularly evident in a series of violations filed in September 2022 related to damaged ceilings, walls, floors, and plumbing systems, as well as concerns about mold/mildew and lead paint hazards. These violations were officially abated by September 2023. Historical records show various unit-specific renovations, including multiple kitchen and bathroom updates between 2003 and 2019, and some concerning incidents such as window issues in 2019 and problems with the heating system. Regular safety inspections have been conducted, with the most recent fire alarm system upgrade in 2023 to meet current fire safety standards.

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

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Risk rating

How 841-863 Scott 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
32th percentile

Out of 305 buildings in this neighborhood, 207 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
50%
No DBI
violation
50%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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.

12-Month severity forecast
No violation 27.1%
Moderate concern 54.6%
Severe concern 18.2%
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

841-863 Scott St event timeline

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

2026
311 Request Mar 29
Garbage and debris
other loose garbage debris yard waste

See all 22 events

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

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Every record we have

Full data for 841-863 Scott 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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