Do lavender plants put down long roots?

I want to plant three small lavender bushes directly next to my house, as there is a small soil border adjacent to the building. I am a bit worried lavender might grow huge roots and I won't be able to dig them out and move them if I choose to. I intend to prune them to keep them small. Will this deter the plant from putting down long roots? If so can anyone recommend a nice little shrub that won't grow too big? Thanks,