This one is called Kapiti Estate and is at the north end of Matenga Street just to the east side of the railway. We assume its north-south street will simply be an extension of Matenga St. Another short street will go east-west (from Huia Street on the right) although doesn’t seem to have a name as yet.
The whole subdivision seems to be shown in this plan and offers 36 lots.
The development company is Aspen 2004 Ltd and seems to be Wanganui based — the Companies Office details are here
The developer’s website is here.