Using drones (with a fully licenced and insured operator) we take hundred of images of the property, along with images taken from ground level. We then post-process these to produce a 3D model, from which we export the orthophotographs.
It takes about 1/2 a day on site (more if it is a large or complex property) and then a further 2-3 days of post-processing to create the final images.
Please give us a call if this service could be of use to your project