Seaforth Place in Woolston and nothing on library website. I did find a couple of people with the surname Seaforth but they lived in Lyttelton and died in 1919. It also wasn’t their real name as their original name was German and they adopted an English sounding name. Seaforth is a place near Liverpool.
Most houses here were built in the 1970s and none of them stood out for me. Not a lot of information on Papers Past. A few ads and a couple of death notices. There was mention in 1988 about stopping a portion of street so I checked maps. I thought that it possibly went as far as Sullivan Ave but couldn’t find any evidence of this. It was possibly connected to the one house that was built in the 1980s. No photos as nothing appealed to me.
Lytteltonwitch's Walking the streets of Christchurch Project 