EAST Riding Council leader Stephen Parnaby has attacked plans by his political counterparts in Hull to build on land beyond the city boundary.
The city council unveiled proposals earlier this month at sites it owns in the East Riding for future house-building.
Three are near Cottingham, while the other is next to Hedon.
Between them, there is enough land to build nearly 1,600 new homes.
However, none of the sites has been allocated for housing in the East Riding's recently published Local Plan, which sets out preferred land use policies for the next 15 years.
Councillor Parnaby said: "In principle, I am opposed to what Hull is proposing on these sites.
"What we are seeing here is an attempt by Hull to balance their projected housing needs figures and balance their books at the same time by generating large capital receipts through the development of these sites.
"We have gone through a long and very detailed process of identifying land for future development in our own Local Plan.
"That has involved a lot of consultation and yet here we have Hull completely ignoring that and coming up with sites they happen to own in the East Riding, which they now say they want to develop.
"That is not what strategic planing is all about and what makes it even more disappointing is no one from Hull even bothered to speak to us first before announcing it."
He said a lack of strategic thinking over long-term planning policies was a dangerous step.
"Without having these kinds of agreements between neighbouring authorities you just end up with a free-for-all and bad developments, which have knock-on consequences for people living nearby."
The three Hull-owned
sites near Cottingham are all on greenfield land currently occupied by tenant farmers at Priory Road, Willerby Low Road and Eppleworth Road.
The East Riding's Local Plan allocates other land near the Cottingham for future housing, including a large site on Castle Road opposite Castle Hill Hospital.
Earlier this year, Cllr Parnaby criticised Hull City Council for deciding to relax its stance on developing open land separating Hull and areas such as Cottingham Willerby, Anlaby and Hedon.
The move prompted East Riding councillors to back a full council motion "deploring" the city authority's decision.
At the time, city councillors claimed a more flexible approach to future land use could help generate new investment.
Now, they have agreed to start a process to appoint a development partner to spearhead the construction of 4,250 new homes across the city and the historic boundary line over the next 25 years.
Councillor John Black, housing portfolio holder in Hull, said the city's approach would create jobs and investment.
