The time-resolved fluorescence anisotropy of a biological sample can reveal rotational dynamics and structure of a fluorescent probe's local environment. Here, methods are presented towards developing widefield time-resolved fluorescence anisotropy imaging (TR-FAIM) using a single photon avalanche diode (SPAD) array (QuantICAM). Such detector allows for simultaneous time-correlated single photon counting (TCSPC) measurements in each pixel with singlephoton sensitivity and picosecond time resolution. Our method integrates the SPAD array with a widefield microscope, and automated rotating polarizers in the excitation and emission pathways to demonstrate TR-FAIM. We have shown the robustness of the method through spectroscopic measurements of the fluorophore PM546, and we have demonstrated the usefulness of simultaneous FLIM and TR-FAIM for studying properties of plasma membranes in live yeast cells.