Hey! I am renting out my full-of-books place in the middle of the city; a 50 m2 charming studio with all what one would need :) Warm during winter, cool during summer. Although the apartment is situated in the busy area of saint Denis/Montorgueil, your nights are guaranteed to be calm and full of sleep.
You will never run out of coffee and tea! The apartment is literally in the middle of the city: 5 min walk to Marais, 7 min to Notre dame, 15 min walk to Opéra and Republique