Plans have been lodged to build almost 400 new homes in Co Londonderry.
The development just outside Coleraine would see 385 properties constructed - a mixture of three and four-bedroom homes alongside some apartments.
The application is for land near Avonbrook Gardens North, close to Knockbraken Drive and Newbridge Road.
It has been made by a Mr and Mrs McGrath, who live close by, in tandem with Coleraine architect GM Design Associates.
It is understood the couple own the land on which the new homes are to be built.
GM Design Associates has worked on a number of major projects, including Ulster University's Coleraine campus, Junction One in Antrim, and in a series of other housing developments.
Initial plans for a similar large housing scheme were put forward in 2013.
That development was given the green light, but no work was carried out.
It's understood permission has since lapsed.
Aside from the mixture of homes of different size and layout, the application encompasses access roads, footpaths, landscaping and a large public open space.
It is just the latest major housing scheme to be forwarded through the planning process in the last few months.
In May it was revealed plans were under way to build 800 new homes in Derry as part of a £100m development.
It's one of the largest private residential investments to be submitted in the north west since the property crash.
That major investment by Maghera-based South Bank Square Ltd proposes a "neighbourhood development" at Ballyoan, close to Crescent Link and Clooney Road.
Meanwhile, Carryduff firm Fraser Houses hopes to build 1,000 properties off Movilla Road in Newtownards.
The Rivenwood project is expected to create around 500 jobs and will take 10-12 years to complete.
The homes, on a 107-acre site east of the Co Down town, will be priced from £132,000 to £192,000.
And Lagan Homes has said it is planning to construct 550 family homes in two locations in Bangor in a major £90m development.
In Belfast city centre the first phase of the new 12-storey residential Matic building on Chichester Street sold out in just 10 hours.
The Coleraine plan comes at a time when the average cost of a house in Northern Ireland rose to £118,000.
The UK housing market as a whole witnessed a price increase of more than eight per cent in the last year.
The current £118,000 average for the province is up from £117,500 in the first three months of this year.