Contact between the developer and the GNR took place in January 1869, then again in summer 1871 by which time the development had been renamed to the "Oakleigh Park Estate", but it was not until January 1873 that the developer was able to inform the GNR that the 25th house was complete. Accordingly, the GNR authorised the station to be completed, now to be known as Oakleigh Park. It opened to passenger traffic on 1 December 1873. The estate office was situated in Chandos Avenue; a contemporaneous sign advertising "Oakleigh Park on main line. Detached residences - gravel soil - open country - large plots - moderate prices" is displayed in the London Transport Museum in Covent Garden.