Before you start to review the attached wireframe. Is there a style guide or creative brief relevant to this page? After thoroughly reviewing both, check this done. If neither applies to this page, move on to the next step.
Review All files required for this task (Wireframe, Moodboard, Asset folder, Fonts files, Logos). If you're missing anything of these files and you need them to get started contact the GDD ASAP
Review the Design Package from the designer. Do you have everything you need to start framing the page in HTML, CSS & JS. If not stop now and get the designer (preferably) or GDD lead on the phone to discuss any questions you have.