No matter what the biological position and where the child is born, the surrogate will always be recognised as the legal mother of the child, and if she is married her spouse will be recognised as the child’s legal father/second legal parent.
If your surrogate is single, one of the intended parents may be named on the initial birth certificate but this will depend on a number of factors, including whether your child was conceived at a fertility clinic.
This means that as intended parents will not be fully recognised as your child’s legal parents at birth, and so you will need to apply for a parental order once your child has been born.