Property profile

436 21st Ave San Francisco, CA 94121

OFF-MARKET
Residential income homes
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Property ID
US10-0111962
3,890 SF 0.07 ac Built 1973
Last sale Aug 2024
Individually Owned Owner of record is an individual. 2-yr Hold Held for 2 years.
Market Trends Soon

Ownership intelligence

Who controls the opportunity?

Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with a plan.

Debts

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.

Property tax · 2024

What does the county charge?
$11k
Tax billed · 2024
Assessed value$850k
Assessed land$463k
Assessed improvement$387k
Effective rate1.33%

Value estimate

· Nov 2026
$960k
$864k – $1.06M
Submarket $/SF estimate$1.13M

Realmo valuation models over county records and 11 qualifying comparable sales.

Recently sold

What actually traded nearby?
$356/SF
ZIP average, outlier-cleaned · 180 recorded sales of this use type
Observed band · Q1–Q3$189 – $503
Qualifying comparables11

Cap rate analysis

How does the asset earn?

No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.

Zoning insight

What can be built here?
RH2
JurisdictionSAN FRANCISCO

Location intelligence

Which uses thrive at this corner?
Best fit: Law Firm
Demand heat for this use is drawn on the map · LocInt grid
Demand index
Law Firm42.9
Realty agency35.7
Clothing Store22.1

Location

436 21st Ave San Francisco, CA 94121-3063
County assessor Recorded deeds · 6 transfers 11 qualifying comp sales Zoning catalog

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

6 recorded sales · 17 properties nearby
Recent sales nearby
6 recorded sales in this ZIP, last 8 years
Address Sale price Sold Size
2835 Anza, San Francisco, CA 94121-3137 $1,750,000 Apr 2025 3,770 SF
179 20th, San Francisco, CA 94121-1300 $1,950,000 Jan 2025 3,776 SF
430 24th, San Francisco, CA 94121-2036 $690,000 Dec 2024 3,992 SF
438 23rd, San Francisco, CA 94121-3038 $400,000 Jul 2024 3,904 SF
448 25th, San Francisco, CA 94121-2783 $2,150,000 May 2024 3,928 SF
2045 Balboa, San Francisco, CA 94121-3076 $880,000 Apr 2024 3,779 SF
Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.
Comparable nearby
6 properties of the same type nearby
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Rey answers here. ChatGPT, Grok and Claude get the same data packet.

Includes: Price & PSF · Cap rate · Location · Zoning

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