Five still have the notices and can be either fixed or demolished.
Gregory was among about 30 people whose properties were affected by slips, and organised a support group. Some of them considered legally challenging the EQC payouts but Gregory decided against it.
The Earthquake Commission (EQC) was willing to pay $65,000 towards the cost of repairs on her house, though its engineer estimated rebuilding the retaining wall it mainly needed would cost $184,000.
After a long search for an engineer to design it, she asked contractors to tender to build it, and I D Loader Ltd was the only Whanganui firm willing to do so.
A second firm told her the job was impossible, and offered to take the house off her hands.
Work finally began in April last year.
When excavation began it became obvious that a change of plan was needed, and the council agreed to amend the existing resource and building consents.
The "huge and impressive" wall is now finished and Hayden Loader honoured a quote made years earlier. The dangerous building notice was removed on March 3 and Gregory can move back in.
It has been a stressful five years, and she has learned it is sometimes better to let things go.
"The money is inconsequential. All that stress is just so hard on your body," she said.
Gregory said the construction company and council had been great to deal with.
"People complain about the council a lot but actually they have been brilliant."