The pilot was ferrying the aircraft to a nearby strip because of planned runway works at Newman. After holding overhead the strip, while two other company aircraft landed, the pilot descended the aircraft into the circuit and completed the prelanding checks. He elected not to lower the gear at that time because he considered the airspeed was to high. The aircraft was subsequently landed with the gear retracted. The pilot stated that he was concentrating on to carry out a good landing. Although he recalls touching the landing gear selector on final, he does not recall checking the gear position indicators. This accident was not the subject of an on-site investigation.