TOMORROW'S sale of 90 flats at Hang Lung Development Co's Parkville project in Quarry Bay will provide the first indicator for the residential market in the Year of the Pig. The second gauge will come from the sale of 90 units at New World Development's Crestmont Villa in Discovery Bay on Friday. While the sale of Parkville is likely to be well-received because of low pricing, Crestmont Villa may be slower because its selling price, $4,590 per square foot, is not considered a bargain. Comparatively, the Parkville units, offered at an average of $4,640 a square foot, look more attractive because similar flats at neighbouring properties are traded at about $5,000 a square foot or more. There have been a number of people visiting the project's show flats at Hang Lung's sales office in Admiralty in the past week. Potential buyers have approached the developer to register for the sale although no official registration is needed. Hang Lung has reserved some units for internal sale to its employees. Property agents are also taking the initiative to try to make quick money, claiming they can help buyers to get units through an internal sale. They will charge one per cent commission on the flat's value, or a service charge of up to $50,000 on a successful deal. To boost sales, Hang Lung is committed to providing a special payment arrangement for buyers who will have to pay an extra five per cent premium on the flat's price if they choose to take up this option. Under the special arrangement, buyers are allowed to pay 15 per cent of the flat's value in instalments over 50 months with the last instalment due on July 1, 1999. Buyers need to pay only a 15 per cent down-payment in the first place. But they are required to pay the balance on or before May 1, which means they have to arrange mortgage loans immediately and start monthly repayments after that. This method not only helps buyers and promotes sales but also brings about quicker cash returns for the developer, which will receive 85 per cent of flat's value almost instantly.