159 21st Ave, San Francisco - For Sale $3.5M in Lake Street

For sale at $3,500,000 · listed September 18, 2026

Price and status as of September 25, 2026

1 of 35

Listed By Tania Toubba. DRE# 001998867. Sotheby's International Realty. (415) 902-2702

Source: SFAR/San Francisco, MLS # 426163832

159 21st Ave in San Francisco is for sale at $3,500,000, listed September 18, 2026. That works out to $1,750 per square foot for a 3-bedroom, 2-bath single-family home built in 1938. The 2,000 sq ft house sits in Lake Street, which Houseberry scores 4.1/5 overall, 4.2/5 for schools and 4.5/5 for safety — 9th of 92 neighborhoods in San Francisco — with a typical home price of $3.63M.

There is an immediate ease to this home - warm, inviting, and full of character, with a Mediterranean sensibility expressed through its clay tile roof and lush landscaping. The main level has been thoughtfuly opened for the way we live today. Living, dining, and kitchen flow naturally together, anchored by a beautifully remodeled kitchen and an oversized center island with generous seating - a space that feels equally right for everyday life or a house full of friends. The two bedrooms on the main level are notably generous

Date	Event & Source	Price	Change
Sep 18, 2026	Listed SFAR	$3,500,000

School Name	Type	Grades	Distance	Houseberry School Score
Alamo Elementary	Primary	K-5	0.1 mi	4.5/5
Presidio Middle	Middle	6-8	0.5 mi	4.5/5

Click links for school listing

info at GreatSchools.org

Houseberry School Score Data

from CA Dept. of Education

Houseberry recommends using these scores as only a starting point, and conducting your own investigation into what schools fit best for your preferences. School boundaries are not guaranteed and may change. It is important to contact the appropriate school district to confirm enrollment eligibility before making any decision to move to a neighborhood.

Near Good Merchants
5.0
Public Spaces
3.5
Curb Appeal
4

Overall Amenities score: 4

4 other sales recorded on 21st Ave since September 2025

The 4 sales on 21st Ave

Address	Sold	Price	Per sq ft
1478 21st Ave	Aug 2026	$2.12M	$1,434
1759 21st Ave	Aug 2026	$3.2M	$1,236
2531 21st Ave	Jul 2026	$2.09M	$1,633
129 21st Ave	May 2026	$6.3M	$1,772

At its asking price, this home's $1,750 per square foot would rank 2nd of 5 alongside the recorded sales on 21st Ave that state one.

What neighborhood is 159 21st Ave in?

159 21st Ave sits in Lake Street, San Francisco. Houseberry ranks Lake Street 9th of the 92 neighborhoods we score in San Francisco.

What schools serve 159 21st Ave?

Houseberry holds attendance boundaries covering 159 21st Ave for Alamo Elementary (elementary school, K-5) 0.1 mi away and Presidio Middle (middle school, 6-8) 0.5 mi away. We hold no high school boundary for this address, which does not mean there is no high school nearby.

What is the asking price for 159 21st Ave?

159 21st Ave is asking $3,500,000, on the market since September 18, 2026.

What is the price per square foot at 159 21st Ave?

159 21st Ave works out to $1,750 per square foot, from the $3,500,000 asking price across 2,000 square feet.

Is Lake Street a good place to live?

Houseberry scores Lake Street 4.1 out of 5 overall, with 4.2 for schools and 4.5 for safety, each on the same five-point scale.

See the full Lake Street profile