Single phase TiO2 mesoporous microspheres were synthesized using a facile one step technique from nanotubes. The prepared microspheres were crystallized in an anatase form with a tetragonal symmetry. The results of surface area measurements revealed mesoporous structure of such materials together with uniform pores. The samples possess rough surface and could be exploited in different applications. The methodology is easy, cheap, fast and could be reproduced for morphology tuning and/or transition.