21 Trevilyan Avenue, Rosebery NSW 2018

$3.7m guide vs median $3.1m | Four-bedroom house 505sqm in Rosebery | Pool and rear extension add value but may not justify premium | Always verify current market data The price guide of $3,725,000 carries clear risk for a buyer. It sits 20% above the Rosebery median for four-bedroom houses around $3.1m and significantly above Domain’s mid estimate of $2.51m. This gap likely reflects the recent custom kitchen and pool but introduces a 15–20% premium that may take time to recover if the market softens. Comparable sales within a 500m radius over the last six months show three-bedroom houses on 400–500sqm lots transacting between $2.6m and $2.95m, while four-bedroom examples with pools achieved $3.3m to $3.45m. A buyer paying above $3.5m should hold for five years minimum to let renovations and suburb growth absorb the entry cost. Use this property for owner-occupation, not immediate flipping. The property’s competitive advantage lies in its rare combination of four bedrooms on a full 505sqm block with a pool in a high-demand suburb where most houses are three-bedroom or smaller. The rear extension with custom kitchen and fluid living areas creates a layout that suits families who want separation from a home office or guest space. The NBN FTTP connection and 5G coverage are supporting features, not primary drivers. This property serves best a buyer seeking a long-term family home who values character in the front three bedrooms and modern entertaining space out back. If you want a truly rare holding that offers lifestyle adjacency to Green Square yet feels established, request a private tour before the auction to test the vendor’s price resolve.