When comparing 3 bhk flats in mohali, examine the dimensions and arrangement of all three bedrooms, the living and dining areas, and the kitchen. Consider whether the layout provides sufficient storage, natural lighting, ventilation, and privacy. An additional bedroom may serve as a guest room, study, or workspace, depending on your household's needs. Check the usable floor area rather than relying only on the advertised size. Balcony space, bathrooms, parking, and shared amenities should also be considered when comparing apartments.