Telecommunications companies have been handed a list of sensitive locations in Birmingham where planning applications for mobile phone masts will be resisted.
The no-go areas feature in new city council planning guidance.
The document is the result of four years' deliberation by the council into the impact of masts.
In February 2004, councillors imposed a ban on new masts on council property following concern about the impact on health, although the decision was lifted. Under the new guidance, phone companies are advised to avoid applications to site masts close to schools, hospitals, houses, parks, listed buildings and in conservation areas.
If they choose to ignore the advice, they will have to show why there are no other suitable locations.
Less sensitive locations, where applications will be viewed more favourably, include commercial and industrial areas and on the top of tall buildings.
The guidance states: "Birmingham City Council recognises modern and comprehensive communications systems are an essential element in the life of the community and the national and local economy and national security.
"The technology is growing rapidly and consequently there is an increasing demand from operators for the provision of telecommunications infrastructure such as satellite dishes, radio antennae, masts and base stations.
"Against the need for this infrastructure must be balanced the potential adverse effects it may have on the quality of the environment of Birmingham."