2602/421 King William St, Adelaide is a 3 bedroom, 2 bathroom Unit with 2 parking spaces and was built in 2015. The property has a land size of 147m2 and floor size of 242m2. While the property is not currently for sale or for rent, it was last sold in October 2025. There are other 3 bedroom Unit sold in Adelaide in the last 12 months.
******UNDER CONTRACT ******Thank you so much for your interest, all scheduled inspection is now cancelled.Wake up each morning to the tranquillity of the Adelaide Hills and the lush South Terrace parklands, right outside your window. Floor-to-ceiling windows flood every room with natural light, framing views of greenery and sky. This rare penthouse perfectly balances city vibrancy with natural beauty - complete with its own private rooftop terrace and oversized sunroom.Within minutes, you can stroll or take the tram to the Central Market, Rundle Mall, or the countless restaurants and bars along Gouger Street, placing Adelaide's best lifestyle experiences right at your doorstep.What truly sets this residence apart is its exclusive rooftop retreat: an expansive terrace and fully enclosed entertainment room with panoramic views across the city to the Adelaide Hills. Designed for all-season living, this space comes complete with wine fridges, a large barbecue, and room to host gatherings of any scale - from summer evenings to cosy winter get-togethers. Add a home cinema, and the rooftop becomes an unmatched CBD sanctuary.Inside, the home has been finished to the highest standard. Luxe timber parquetry flows through the living spaces, plush carpets bring warmth to the bedrooms, and premium fixtures elevate every detail. The high-end Miele kitchen features integrated appliances, including a Liebherr fridge/freezer, a full-size pantry with Miele coffee machine, and exceptional storage. Bathrooms echo this luxury with floor-to-ceiling marble tiles, double vanities, and a deep freestanding tub in the ensuite.Everyday comfort has been carefully considered, with ducted reverse-cycle air conditioning, ceiling fans, motorised blinds, dimmable lighting, and high-speed NBN. Two secure side-by-side basement car parks and bicycle racks add convenience.As a resident, you'll also enjoy premium on-site facilities including a gym, swimming pool, and outdoor dining areas with barbecues - all with secure keycard access and intercom entry.Highlights include: Rare penthouse with private rooftop terrace and oversized sunroom Breathtaking views of South Terrace parklands and Adelaide Hills Expansive open-plan living and dining with balcony access Luxe timber parquetry flooring + plush carpets to bedrooms High-end Miele kitchen with integrated Liebherr fridge/freezer, pantry with coffee machine & abundant storage Master bedroom comes with a walk-in robe and two bedrooms with built-in robes, ceiling fans & dimmable lights Deluxe bathrooms with wall-to-wall tiles, double vanities & freestanding tub Ducted reverse-cycle air conditioning + high-speed NBN Two secure side-by-side basement car parks plus bicycle racks Gym, pool & outdoor BBQ facilities with dining area Secure keycard access & intercom systemAn offering of rare scale, prestige, and privacy - this penthouse delivers the ultimate combination of city convenience and natural serenity, right in the heart of Adelaide. Disclaimer:On behalf of Auta Real Estate, all information contained in this advertisement has been sourced from materials we believe to be reliable. However, we make no representations or warranties as to its accuracy, and accept no responsibility for any errors, omissions, or misstatements (including, but not limited to, property land size, floor plans, building age, or condition). Prospective purchasers are advised to conduct their own enquiries, undertake inspections, and obtain independent professional advice before proceeding.RLA 281476
The size of Adelaide is approximately 10.2 square kilometres. It has 42 parks covering nearly 50.5% of total area. The population of Adelaide in 2016 was 15115 people. By 2021 the population was 18202 showing a population growth of 20.4% in the area during that time. The predominant age group in Adelaide is 20-29 years. Households in Adelaide are primarily childless couples and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Adelaide work in a professional occupation.In 2021, 32.50% of the homes in Adelaide were owner-occupied compared with 32.40% in 2016.
Adelaide has 18,715 properties. Over the last 5 years, Houses in Adelaide have seen a 49.03% increase in median value, while Units have seen a 34.05% increase. As at 31 January 2026:
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