Three dilapidated houses are being demolished in Ystalyfera after being served with demolition notices by Neath Port Talbot Council.
The three houses in Cyfyng Road are metres away from the row of 10 houses which were handed prohibition orders after Neath Port Talbot Borough Council said there was an “immediate risk to life” in August 2017.
The 10 remaining houses are likely to be issued with demolition orders later this year.
Speaking to Wales Online, Neath Port Talbot Council said: “ There are three houses which were the subject of the demolition notice and this was imposed due to the dilapidated state of the properties.
“They are indeed located in the very High Risk Zone as defined on the Hazard and Risk map and as such it is unlikely that replacement development will be considered favourably.
“We are, however, unable to confirm this to be the case as this would potentially pre-determine the outcome of the planning application process.”
Of the 10 remaining properties, only one is still occupied. Resident Richard Morrison is due to go to court to fight the prohibition order this month, and has previously said he had employed engineers to carry out risk assessments on the property, which he claimed had concluded the landslip was due to a build-up of rain water, Wales Online has reported.
According to a statement from the council in August, the strata cores and results from the specialist drilling work will allow review and verification of the assessments to date which have included Lidar surveys, boreholes, trial pits and the creation of monitoring wells/installations.
The final assessment report from Earth Science Partnership (ESP) is expected shortly.
In April 2018 the residents challenged the decision to evacuate them from their homes, but lost their appeal in May.