4 Illoura Avenue, Wahroonga NSW 2076

Grand federation estate | Fully renovated heritage | 3,233sqm with tennis court | Premium Wahroonga address | Auction in June This property represents a rare convergence of heritage significance and contemporary luxury. The 1907 Arts and Crafts residence has been comprehensively renovated while retaining its original joinery, staircase, and fireplace, which positions it favourably against other period homes that often require substantial updating. The 3,233sqm allotment with full-size tennis court and swimming pool is unusually large for a blue-ribbon Wahroonga address, and the 14% building coverage suggests scope for future landscaping or potential extension under council guidance. It serves best a family seeking an immediate move-in estate with hotel-quality ensuites and a music room that could function as a home office. The detected heritage overlay may restrict external alterations, though this also protects the property’s character and surrounding streetscape values. The auction format on 6 June creates a defined timeline for due diligence, and the seven scheduled inspections before then allow thorough assessment. The 2017 sale of a larger neighbouring estate for $7.95 million provides a reference point, but this property’s superior renovation and smaller land area require careful comparison. The long-term owner-occupier profile of Illoura Avenue—with 60% of residents holding for over 50 years—indicates low turnover and stable values, though it also means limited recent sales evidence for precise pricing.