1. Introduction
2. Observations
2.1. Spectroscopic data
2.2. Imaging data
2.3. Synthetic model fitting
3. An exploration into the role of environment in VUDS
3.1. Discovery of a  $z\sim3.3$ proto structure in the CFHTLS-D1 field
4. The Effect of environment in Cl J0227-0421
4.1. Color magnitude and color stellar-mass properties
4.2. General properties of the Cl J0227-0421 galaxy population
5. Summary and conclusions