Hardingstone residents have pledged to keep fighting plans to build 1,000 homes on the edge of their village, in the wake of the proposals being formally lodged.
The Government-backed Homes and Communities Agency this week submitted an outline planning application for land behind The Warren and Newport Pagnell Road, near the village.
As part of the development, it is also proposed to build a local centre of up to 1,320 sq m floor space to include a primary school, shops and restaurants or cafes.
The Hardingstone Action Group, which is made up of residents who oppose the plan, presented more than 1,000 letters of objection to planning officials at the Guildhall last month.
The action group also met South Northamptonshire MP, Andrea Leadsom, last week, and she is backing their campaign.
Action group member, Adrian Bell, said: “Andrea Leadsom came to the village on Friday and expressed her support, which has got to be worth something.
“The support is still there. We have done a poster for people to put in their windows as well.
“We have been back on the streets delivering them, and about three quarters of the village now has the poster up in their window.”
Hardingstone currently has about 950 homes and 1,600 residents.
The new development would more than double the size of the village.
A Homes and Communities Agency spokesman said: “A key objective is to provide a range of housing to ensure all residents have access to a home they can afford and that meets their needs, increasing the opportunity for local people to live in the area they grew up in.
“The proposals submitted also include new infrastructure, including a new two-form entry primary school, new roads and a new local centre providing flexible space for community facilities.”