One of the methods used to give unity to townscape is to control the detail of elements or the whole element of townscape. To compare the two methods of controlling townscape, this paper takes into consideration the psychological experiment on the two-buildings-townscape that is the smallest townscape. METHODOLOGY Subject : These consisted of 47 students (23 males, 24 females). Stimulus materials : 20 two-buildings-townscape slides. There are two types : One is that the detail of the elements is different but the whole element is the same, the other is that the detail is the same but the whole element is different. The variable details are trim and cornice. The variable whole elements are form of window, proportion of facade, size of facade, height, width, form of roof and texture of wall. Estimation categories : 3 categories : similarity of form, similarity of atmosphere and suitability of townscape. PROCEDURE The subjects are required to judge which of a pair slides is similar in form, similar in atmosphere and more suitable in townscape. RESULTS The following results were obtained : On similarity of form, the whole element is more influential than the detail. On similarity of atmosphere, two types of judgement patterns were obtained. One is that the whole element is more influential than the detail, the other is that the detail is more influential than the whole element. On suitability of townscape, the detail is more influential than the whole element.