We real estate research firm Estately compiled the average sale price per square foot of all residential real estate properties sold within a mile of a BART station since October 2015.

http://www.bizjournals.com/sanfrancisco/morning_call/2016/04/most-and-least-expensive-bart-stops-to-live-by.html?ana=fbk

The 10 least expensive stops:
1. Pittsburg/Bay Point – $219 per square foot (62 minutes from Downtown San Francisco)
2. Richmond – $258 (35 min)
3. Coliseum – $270 (20 min)
4. North Concord/Martinez – $306 (56 min)
5. Concord – $317 (43 min)
6. Hayward – $347 (32 min)
7. South Hayward – $356 (36 min)
8. San Leandro – $366 (24 min)
9. Bay Fair – $376 (28 min)
10. Castro Valley – $406 (32 min)

Here are the 10 most expensive stops
1. Embarcadero – $1,191 per square foot (0 minutes)
2. Montgomery Street – $1,149 (2 min)
3. Powell Street – $1,099 (4 min)
4. 24th Street/Mission – $1,001 (9 min)
5. 16th Street/Mission – $998 (7 min)
6. Civic Center – $994 (6 min)
7. Millbrae – $854 (25 min)
8. Glen Park – $817 (11 min)
9. SFO – $735 (32 min)
10. Rockridge $704 (20 min)