The 23-year-old was arrested under section 41 of the Terrorism Act.
He remains in custody assisting officers with their enquiries.
At the time police said a deadly device exploded in the front garden of man’s home at Montgomery close in the Waterside in the early hours of the morning.
Local people described the man as “quiet” and suggested the motive for the attack could be sectarian.
“He hasn’t been here very long and he seems quiet, but it is disgraceful that anyone would leave a pipe bomb outside someone’s home,” said one resident at the time.
“I think he lives there most of the time on his own, but small children seem to come and stay at times.
“Another house in the close was attacked a while ago and I think this might be for the same reason – because they are Catholics – which is no reason to attack anyone.
“I think that is not acceptable.
“I think people should be allowed to live wherever they want.
“The last thing you want to hear in the early hours of the morning is an explosion in your street and to have a policeman knocking on your door saying you may have to leave.
“Thankfully we didn’t, but the police cordon was around the house until lunchtime.”
The remnants of the device was examined by ATO before it was removed for forensic examination.
No damage was done to the property, but police said the occupants had a lucky escape.
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