The area of old Yanchep is really just that - the older houses on the older streets that have been established for many years. In some ways it is better than new Yanchep because the land size is bigger and there is less order and similarity between houses. You are more likely to find a house with some beachside character in the old section and in some spots (if you pay enough!) be closer to the beach as well. Some spots are fairly ordinary, but others really have the beach feel as you drive up and down old 'sand dunes'. The new area is much more uniform and has smaller blocks of land, topped with new houses that all look the same. Much like the rest of the city, it depends upon what you are after - new can be better in many ways.
We have a number of different pockets within Yanchep now.
The so called "old part" is the original Yanchep village (Old Lagoon area), close to the beach and large blocks (800sqm+). You find a variety of older or newer houses in the area.
We then have the "Ocean Lagoon Estate" established about 20 years ago with land sizes between 600-800sqm and mostly large homes. This is a premium area!
The new estate of "Capricorn" contains smaller lots like most new developments with houses build in the past few years (the estate is still growing!) It compromises of a beachside and non-beachside area.
Then there are estates around the Golf Course (a new estate and the older area of St. Andrews) with a variety of older and newer properties.
Contact me if you have any questions about the area's - I'm a resident for more than 10 years and also a local Real Estate Agent!