A Building Survey (formerly called a Structural Survey) is the most comprehensive survey available and the highest level (Level 3) on the RICS scale. It is ideal for older properties, rundown or unique properties, and those that have been extended or altered. A Building Survey is also advised if you are planning major works to the property. It contains all the elements of the Homebuyer Report but offers a more tailored,  in-depth analysis. A Building Survey does not typically include a valuation, although this can be added by separate arrangement.