The accommodation conditions on the 4th1floor of Yanyuan are relatively good, and the specific accommodation fee and whether there is a balcony may be different according to the year and specific arrangement. The following are possible scenarios:

1. Accommodation conditions: According to the experience of some Peking University seniors, the accommodation conditions of Yanyuan 4 1 building are relatively good. The facilities in the room are relatively new, and the bathroom is brand-new. There is no air conditioner and electric fan in the room, but there is heating. The room is a bunk bed, but the overall space is relatively spacious.

2. Accommodation: According to the information of 20 19, the accommodation of Yanyuan 4 1 building is 1020 yuan/year. However, please note that this price may change according to the year and specific arrangements.

3. Balcony: According to the experience of some senior students of Peking University, most rooms on the 4 1 floor of Yanyuan have balconies.

Generally speaking, the accommodation conditions of Yanyuan 4 1 building are better, but the specific situation may be different. If you need more detailed information, it is recommended to consult the relevant departments in Peking University directly.