It was around this time that the club realised the need for a home of its own and in 1978 the grounds at the 12th Lock were purchased from Shackletons for the sum of £51,500. Initial finance was provided by members by way of an interest free loan of £50 per head. The area of Lucan itself has expanded beyond all recognition during the period since the foundation of the club. In 1901 the population of the village of Lucan was recorded at 872, by 1981 it had increased to 13,508. Today the Lucan area is one of the fastest growing suburbs of Dublin with the present population estimated at 50,000 people living in the Lucan area. Lucan Sarsfields is continuing to grow with the community that it serves, because of the explosion in membership numbers a new clubhouse was built in 2001. The modern design includes a bar and function room, viewing balcony, 5 dressing rooms with showers, gym and club shop. The pitches in the 12th lock are known around the county for their excellent condition when it comes to championship. Sarsfields are currently planning to construct a state-of-the-art all-weather playing surface. This project was delayed by the ongoing saga between Thomas Davis GAA and Shamrock Rovers in South County Dublin. With the conclusion of this it is expected the new pitch should be ready by 2010.