Hundreds of homeowners will not lose part of their gardens under revised BusConnects plans, but around 800 others are still at risk of being impacted.
Many trees that were to be cut down so roads could be widened have also been spared.
Under the plans for a major reform of Dublin's bus network, roads will have to be widened to make room for 16 bus corridors.
It initially meant that mature trees were to be cut down and up to 1,400 homeowners were going to lose part of their front gardens.
The NTA has reviewed more than 13,000 public submissions and has now revised the plans.
It will now see more one-way systems for private motorists, rerouting segregated cycle tracks and making more roads bus-only.
The revised plans have reduced the number of homes whose gardens will be impacted by 42%.
However, NTA CEO Anne Graham explained they were unable to reduce the impact for the majority of homeowners.
She said: "There are going to be property impacts, and what we had been doing in terms of the consultation up until now had been trying to mitigate those as much as we possibly can.
"Unfortunately, in order to provide the level of priority for bus and the cycling facilities, there are still property impacts."
Ms Graham acknowledged the major project will bring challenges, but insisted that BusConnects is "needed now more than ever" as part of efforts to create a sustainable public transport system.
Up to 90% of the trees that were to be cut down on Baggot Street and Pembroke Road have been saved under the revised proposals.
No trees will be removed along Rathgar Road, while the plans also propose a 75% reduction in the number of trees along Finglas Road being removed.
The second round of public consultation for the revised plans opens today.