Residencial Aljamar is quite straight-forward to find.
Follow the towns main road the N-340 till you get to a roundabout with the tennis club (La Raqueta) and the Mercadona supermarket either side.
Take the exit for the local road.
Follow the local road taking the second exit from it which has a yellow postbox(Avenida Chimenia).
Following that road down, take the first-right (Calle Lucena).
Residencial Aljamar is halfway down the road on the left-hand side and is clearly marked.