The trees could be flowering cherries or flowering plums. Both are in the prunus family.
All trees will have some impact with roots if inappropriately sited, but these are not regarded as bad trees for root problems. The flowering plums can have wonderful burgundy foliage, as in Prunus cerasifera nigra. They are tough plants that require good drainage.
Thanks for the enquiry. The two trees that flank the photo are Malus floribunda (Crab Apples). The Centre background is a Pyrus nivalis (Ornamental Snow Pear).
I have not heard of the Malus creating any problems with house foundations or any other structures or sewer/drainage etc. However it is always wise to consider overall size and plant accordingly with an awareness of proximity to structures and services. All the best R
Timandra Design & Landscaping
S-ENSE Landscapes Pty Ltd
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