Developers are building a new $70 million seaside village in north Auckland - and a $20m road to connect it.

Developer Todd Property has been building at Long Bay in north Auckland since 2010, and on Thursday, announced plans for the "heart of the community" - about 28 businesses including restaurants, supermarket and retail.

The developer was also partnering with Auckland Transport to build a road to feed into the popular Long Bay Regional Park as part of the development.

Todd Property managing director Evan Davies said while plans for a village had always been thrown around, this was the first time they had been finalised.

"We've always said there would be a heart to the overall community we're developing, but we have not previously talked about what that would look like," Davies said.

The village was due for completion in 2019 and Davies said they would try to co-ordinate this with the new road opening.

"While its primary objective is to provide that new community heart at Long Bay, given it's a seaside village adjacent to the most popular park in the region, it will be quite a destination," Davies said.

The building of the "$20 million plus", roughly one-kilometre road was being funded by both Todd Property and Auckland Transport.

Once linked to a new council road, it would act as a second entrance to the regional park, alleviating the traffic queues commonly seen in the peak of summer.

"The park is an extremely popular recreational facility across the region and that level of popularity with restricted access has caused issues in the past," Davies said.

The new road would also link to the existing Glenvar Rd and concerns had previously been raised about whether that would handle increased traffic flows.

Davies said while that fell outside the company's development area, they would support improvements to the road and intersection with East Coast Rd.

Parts of the fill removed while constructing the road would also be used to construct a new playing field adjacent to Long Bay Primary School.

Todd's general manager of land development Stephen Martin said there weren't any concerns around whether the new road would be able to handle increased traffic flows over time.

"It's been designed and built to handle the Long Bay area," Martin said.

"And designed to handle any expansion that might happen in the future," Davies added.

Martin expected the new road to take about 4500 vehicles per day, alleviating pressure on roads around Long Bay College and primary school. He said the cost was relatively high because the site was "geotechnically challenging".

Davies was looking forward to the finished products.

"Overall, what we've taken is an unloved and unused area of existing farmland and created a major recreational destination, while housing a significant number of Aucklanders."

In the seven years since work started at Long Bay, more than 450 homes have been built. Another 1700 are expected by 2025.