SoldJan 12, 2026

21-23 Ada Avenue, Wahroonga, NSW, 2076

$18,550,000

6
7
5
7100 m²

House

30+ days on the market

Sold: Jan 12, 2026

What's around 21-23 Ada Avenue

Wahroonga's Crown Jewel - 7,100sqm (Approx.) of Rare North Shore Grandeur

A Grand Estate of Unparalleled Scale, Luxury and Potential. Set across approx. 7,100sqm (1.75 acres), 2123 Ada Avenue stands as one of the largest and most prestigious landholdings on Sydney's North Shore - a once-in-a-generation opportunity to secure a landmark property that blends grandeur, lifestyle, and future potential. Meticulously renovated throughout by its current owners, this aspirational family estate is a true sanctuary of elegance and scale - complete with lift to all 3 floors, championship north/south tennis court, resort-style pool with pool house, one-bedroom separate residence, horse stables, and manicured park-like gardens. Property Features: - 6 oversized bedrooms + dedicated home office - 7 luxurious bathrooms with premium finishes (3 with ensuites) - 4-car lock-up garage + grand port cochere (20+ car off-street parking) - Multiple formal and informal living spaces throughout - Designer kitchen (subzero fridges) and butlers pantry to huge outdoor undercover entertaining - North/south championship sized tennis court - Sparkling in-ground pool, with separate pool house - One-bedroom cabana ideal for guests or extended family - Original horse stables, adding charm and character - Lush, established gardens with sweeping lawns and mature trees - Full internal renovation tastefully updated for modern living while preserving timeless architectural charm - Dual access, excellent privacy and security - backs down the The Glade Oval - Further development potential for subdivision (STCA) - Wahroonga's largest landholding within walking distance to rail - Moments to elite schools including Knox Grammar, Abbotsleigh, Barker College - Close to Wahroonga village shops, cafes, parks and transport - Positioned on a peaceful, tree-lined street in one of Sydney's most tightly held enclaves Rarely does a property of this scale, luxury and location come to market. With its expansive grounds, exquisite renovation, and multi-use potential - this is an estate that elevates family living to a whole new level. Whether you're seeking a forever home, an intergenerational retreat, or the foundation for future development (STCA), 2123 Ada Avenue is a standout in every sense. Enquire today to arrange a private inspection of this landmark Wahroonga estate. Disclaimer: the information provided is for general informational purposes only and is not intended as legal, financial, or real estate advice. While every effort is made to ensure the accuracy of the information, we make no guarantees regarding its completeness or accuracy. Prospective parties are encouraged to conduct their own independent investigations. We are not responsible for any liabilities that arise from use of information provided.

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