This entire beautiful building has been destroyed and replaced with a parking lot.
Another one of those places that peaks the curiosity, Les liens is a little french bistro with a traditional Japanese feeling. The walls are white; the floors, tables, and chairs all chocolate brown. Well worn wood with character. A large bookcase holds a selection of reading material (all in Japanese). Mellow jazz plays quietly in the background. It is a small place, with a table for 4, a table for 3, three tables for 2, and two seats at the bar.
There are three choices for lunch: a daily special, sandwich, or curry (all about 1000 yen). The menu is handwritten in Japanese, and the little bit that is in katakana is French. Whenever in doubt, I always order the special. 
First came a small cup of pea soup, flavored with peppered croutons. I love peas, so I really enjoyed the soup. The main dish was a variety of vegetables (cabbage, potatoes, broccoli,...), a sausage, and a very tender piece of pork in a tasty soup broth. A popular french dish that I cannot spell in English. It came with a choice of rice or bread. Healthy and delicious. I added on a cup of coffee for 150 yen.
Address: 5-32-14 Daizawa. From Shimokitazawa's South exit, walk down the main shopping street. When it runs into a number of other streets, take the 2nd left - you should see a used clothing shop called 'Chicago'. Les liens is on the right at the traffic light (on Chazawa dori). It is part of the first floor of the really cool building on the corner.
Phone: 03-3410-3454
Hours of Operation: Closed on Mondays
Tues: 18:00 - 23:00
Wed/Thurs/Fri: 12:00 - 14:00 / 18:00 - 23:00
Sat/Sun/Holidays: 12:00 - 22:00
