Hello Worapan and thanks for your question.
Typically, builders and developers have their own in-house staff of sales people who sell their homes. To join their teams, contact the builder directly and apply for a job. Smaller builders without a full-time staff of Realtors will often hire "selling" firms that staff the site with professional Realtors trained specifically to handle new home sales.
If you do not have any experience selling new homes--and, believe me, there are very specific rules and specialized training required to do this job correctly--you might consider joining a brokerage that specializes in selling new homes.
Hee are some things to keep in mind: 1) Realtors who staff new housing projects do NOT get nor can the command the same commissions selling new homes. On the average, a Realtor sitting on a new home project is getting only about 0.5 to 0.75 per home, and that price is split between broker and agent. Agents who work as employees of the developer, often only get an "incentive bonus" per home sale equal to a few thousand dollars in addition to their regular pay. 2) Duty - working with a developer is the same as working a "regular" job and you will be required to be on site between 9:30 a.m. to 6 p.m., 5 days per week. 3) Developer will expect Realtors who are "better than the average bear." In other words, the developer and the selling company can afford to hire only those who are smart, polished and knowledgeable. So long as you have fairly extensive experience in this field, good communications skills, polished manners and an excellent sales presence, this may be the job for you--otherwise, you may find entry to be very difficult.
Finally, while I realize that it can seem really "easy" to sell homes on a housing tract, new home developers are finding it just as hard now to sell homes in today's market as private individuals. As a result, rather than increasing home sales staff, developers are now pulling back a bit, and--much like other areas of real estate--the very best in the business are the only ones retaining jobs, so keep this in mind when you're looking for a job.
Work directly with the big California developers (K&B, Toll Brothers, etc) to see if they are hiring. Also speak with the larger brokerages about joining their new home sales teams or working on tract sales. You will need to learn very specific job duties for this job, so be prepared to start from the bottom for a bit.
Grace Morioka, SRES, e-Pro
Area Pro Realty