section 54G of Capital gain

Condition is "ANY AREA  OTHER THAN AN URBAN AREA"

so, any urban area other than existing is also not allowed.

“Urban area” means any such area within the limits of a municipal corporation or municipality as the Central Government may, having regard to the population, concentration of industries, need for proper planning of the area and other relevant factors, by general or special order, declare to be an urban area for the purpose of this section.