West Oxfordshire District Council has issued a response following objections to two connected housing proposals in Oxfordshire.
Together, the developments could provide approximately 1,200 homes.
Conservative councillor Thomas Ashby raised concerns about the proposals for land on either side of Dry Lane, north of Burford Road in Witney.
He said the planned healthcare improvements and traffic-related infrastructure were inadequate for the proposed scale of development.
A council spokesperson said housing growth needed to be accompanied by suitable infrastructure and community services.
The authority’s emerging Local Plan is backed by an Infrastructure Delivery Plan, which sets out required improvements across the district, including Witney.
Consultation on the West Oxfordshire Local Plan 2043 has concluded.
The council had previously been instructed to make provision for as many as 18,000 homes over the following two decades.
Before the Local Plan can be adopted, its policies and proposed site allocations will be subject to independent examination as part of the statutory planning process.
An outline planning application has been lodged for the site west of Dry Lane.
The land east of the road is also being promoted for development, although no planning application has yet been submitted for that site.
Any future applications will be assessed under the established planning procedure, with relevant policies and infrastructure requirements taken into account.