Karl und Anton Boutique Apartments: a stylish apart-hotel experience in Vienna, Austria, located at 203 An Der Oberen Alten Donau and just 3.4mi from the city center. Price starts from $152. The property has earned 1,453 reviews from past guests, offering plenty of traveler insight at a glance.

Amenities spotlight: pet friendly (free), Wifi (free), and a fitness center (free) set the vibe, with air conditioning, a sun deck, terrace, and views of lake and garden. Kitchens and kitchenware, non-smoking rooms, balconies, and free toiletries add convenience, while soundproof rooms, elevator access (upper floors), and parking options—Private Parking (extra charges) and Parking On Site (extra charges)—round out the practical side. A garden, picnic area, and playground provide space for relaxation and play.

Whether traveling with a pet or tucking into a quiet corner with a view, this Vienna base offers flexibility—think roomy kitchens, balconies for morning coffee, and a garden that invites a twilight picnic.

Apartment options here are roomy and varied, with smoke-free layouts spanning roughly 484 to 775 square feet. Choose from lake-view, garden-view, or balcony settings, and enjoy a setup that often pairs a queen-size bed with a sofa bed, suitable for up to six guests in larger configurations. These spaces offer a comfortable base for exploring Vienna, with tranquil views and home-like touches after a day of city sightseeing.

Furry friends are welcome, with pets allowed at no extra charge. Payment is accepted only in cash. Parking arrangements include Private Parking and Parking On Site, both available for an extra fee, helping keep wheels conveniently close.

Outdoor spaces include a garden, a picnic area, and a playground, inviting relaxed downtime with views of lake and garden. This Vienna base blends flexibility and a cheerful atmosphere, making it easy to tailor a stay for couples, families, and groups seeking a memorable, easygoing urban escape.