finite element method – Creating QuadElements from a set of points

I am new in Mathematica.

Is it possible to create QuadElements from a set of points?
In this link there is an explanation for creating triangleElement.
Suppose I have only coordinates of my points as follows

dd = {{0.25, 0.25}, {0.5, 0.25}, {0.75, 0.25}, {0.25, 0.5}, {0.5, 
    0.5}, {0.75, 0.5}, {0.25, 0.75}, {0.5, 0.75}, {0.75, 0.75}, {0.25,
     1}, {0.5, 1}, {0.75, 1}, {0.25, 1.25}, {0.5, 1.25}, {0.75, 
    1.25}, {0.25, 1.5}, {0.5, 1.5}, {0.75, 1.5}, {0.25, 1.75}, {0.5, 
    1.75}, {0.75, 1.75}, {0, 0}, {1, 0}, {0, 0.25}, {1, 0.25}, {0, 
    0.5}, {1, 0.5}, {0, 0.75}, {1, 0.75}, {0, 1}, {1, 1}, {0, 
    1.25}, {1, 1.25}, {0, 1.5}, {1, 1.5}, {0, 1.75}, {1, 1.75}, {0, 
    2}, {1, 2}, {0.25, 0}, {0.5, 0}, {0.75, 0}, {0.25, 2}, {0.5, 
    2}, {0.75, 2}};

I want to create quadElements from this set.
Thank you for your help.