21-23 Ada Avenue

Off Market

21-23 Ada Avenue

Wahroonga NSW 2076

7100 m²

House

Last sold for $18,550,000

Tim Fraser, last sold this property on 12 January 2026 after 103 days on market.

Overview

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.

Features

6 bedrooms

7 bathrooms

5 carspaces

7100 m² lot size

House

Estimated Value

Based on this property and similar 6 bedroom houses sold in Wahroonga over the last 12 months, the estimated median property value of 21-23 Ada Avenue is $5.38m.

Median value

$5.38m

Estimated value range

$2.38m - $18.55m

Median days on market

Estimated value trend

increase over the last 12 months

Average days on market is based on recent, comparable sales in Wahroonga. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 21-23 Ada Avenue

2026

Sold

$18,550,000

Private Sale/Treaty on 12 Jan 2026 by Tim Fraser, of DiJones Wahroonga

Happy sellers in Wahroonga

75%

75% of sellers in Wahroonga reported that their sale price either exceeded or met their price expectations.

Wahroonga stands out for consistently delivering exceptional satisfaction and strong market results for homeowners.

This is based on voluntary sentiment collected from 82 reviews in Wahroonga over the last 12 months.

Local market activity for 6 bedroom houses in Wahroonga

In the last 12 months, 20 six-bedroom houses similar to 21-23 Ada Avenue, have been sold.

This represents a 33% decrease in six-bedroom houses sales when compared to the previous 12 months.

Sold

For Sale

For Rent

Interested in selling?

People are reaching out to these agents in Wahroonga for a free market appraisal.

Susie Stathakis

at THE MARSHALL GROUP RE | Wahroonga

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Michael Dempsey

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Eva Lu

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