The State's road builder has so far acquired two Bullsbrook properties at a cost of $1.1 million for the major arterial road - a 37km link between the intersection of Reid and Tonkin highways to the Great Northern Highway at Muchea.
The properties, one on Warbrook Road and one on Raphael Road, are just two of 36 properties that Main Roads needs to purchase before it can start construction of the bypass, expected to be late next year.
It is in negotiations to purchase the rest. In all, the estimated cost of land purchases for the project is $43 million.
Get in front of tomorrow's news for FREE
Journalism for the curious Australian across politics, business, culture and opinion.
READ NOWAll the other land required to build the bypass was already owned by the State or Federal governments.
Around Ellenbrook, the road and intersections will be within the current road reserve, which abuts some properties.
Ellenbrook residents have expressed concerns that an exit ramp was closer than necessary to their homes, and this has been addressed in the planning for the bypass.
The Federal Government has committed $615 million in funding for the Swan Valley Bypass and the State Government $362 million.
The highway will form a key freight route connecting Perth to the north of WA, for the transport of equipment and supplies to mining operations in the Pilbara.
The existing section of the Great Northern Highway through the Swan Valley is experiencing strong traffic growth and the mix of heavy vehicles with light residential and tourist traffic is leading to major congestion and reduced safety.