630 Mason St #403, San Francisco - For Sale $549K in Downtown

For sale at $549,000 · listed February 15, 2026

Price and status as of September 25, 2026

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Listed By Shivani Desai. DRE# 002042817. Compass. (415) 345-3000

Source: SFAR/San Francisco, MLS # 426100648

630 Mason St #403 in San Francisco is for sale at $549,000, listed February 15, 2026. That works out to $732 per square foot for a 1-bedroom, 1-bath co-op built in 1927. The 750 sq ft co-op sits in Downtown, which Houseberry scores 2.5/5 overall, 2.4/5 for schools and 2.4/5 for safety — 85th of 92 neighborhoods in San Francisco — with a typical home price of $799K.

Spacious, light and bright co-op condo with great architectural detail in an elegant Art- Deco building built in 1927. Elevators whisk one to the 4th floor where one enters this charming unit through a generous hall with enormous amount of closet space leading to a large living room with decorative fireplace, beamed ceiling, ample space for a home office and multiple windows over looking unique San Francisco outlooks. A pleasing kitchen with stainless steel appliances, granite counters and a good sized dining area, an update

Date	Event & Source	Price	Change
Feb 15, 2026	Listed SFAR	$549,000

School Name	Type	Grades	Distance	Houseberry School Score
Lau (Gordon J.) Elementary	Primary	K-5	0.3 mi	4/5
Marina Middle	Middle	6-8	1.7 mi	3.5/5

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
Curb Appeal
3

Overall Amenities score: 3.4

What neighborhood is 630 Mason St #403 in?

630 Mason St #403 sits in Downtown, San Francisco. Houseberry ranks Downtown 85th of the 92 neighborhoods we score in San Francisco.

What schools serve 630 Mason St #403?

Houseberry holds attendance boundaries covering 630 Mason St #403 for Lau (Gordon J.) Elementary (elementary school, K-5) 0.3 mi away and Marina Middle (middle school, 6-8) 1.7 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 630 Mason St #403?

630 Mason St #403 is asking $549,000, on the market since February 15, 2026.

What is the price per square foot at 630 Mason St #403?

630 Mason St #403 works out to $732 per square foot, from the $549,000 asking price across 750 square feet.

Is Downtown a good place to live?

Houseberry scores Downtown 2.5 out of 5 overall, with 2.4 for schools and 2.4 for safety, each on the same five-point scale.

See the full Downtown profile

Homes for sale in Downtown20 active listings nearby at last count
Is Downtown a good place to live?Houseberry scores for schools, safety and amenities
Homes sold in DowntownRecent sale prices and how long homes took to sell
Best neighborhoods in San FranciscoEvery neighborhood in San Francisco, ranked

Houseberry has recorded 61 sales in Downtown since September 2025.

Neighborhood data last updated September 25, 2026