What information is needed before production?
Prepare a brief containing the latest plans, elevations and sections; an available 3D model with its file format; material and finish references; landscape information; and a list of required views. State where each output will be used, such as a website, printed brochure or sales presentation, because delivery dimensions and framing can differ. Mark provisional design decisions and identify the current drawing revision. Name one person to consolidate comments from the developer, architect and marketing team. Ask the visualisation studio to confirm file compatibility and missing inputs before production; sending a model does not by itself establish that it is ready to render.
How should a visualisation be reviewed?
Review geometry and camera positions before materials, lighting and finishing details. Check the visible building proportions, room layout, landscape boundaries and agreed surroundings against the supplied design information. For each review, collect comments in one marked-up document with a drawing revision and named decision-maker. Separate corrections against the agreed brief from new design instructions. Agree how many review rounds are included and what happens when drawings change after a stage is accepted. Before delivery, check that each image corresponds to the approved design version and that the agreed file names, dimensions and formats are supplied.
What influences cost and delivery time?
Ask for a quotation that identifies the number of views, modelling required, scene detail, supplied-model preparation, output resolution, review rounds and delivery formats. A single exterior view and a set covering interiors, amenities and aerial views are different scopes; comparing their total prices without comparing those inputs is misleading. Changing a finish within an agreed view also differs from introducing a new building design or camera sequence. For a walkthrough film, add duration, storyboard, camera movement and required versions to the brief. For an interactive presentation, define navigation, supported equipment and the information to be displayed. Timing depends on that scope, input readiness and the review process. Request a project-specific estimate rather than treating a generic per-image rate as the full production cost.