Can my aunt prevent partition of our ancestral property ?

Sir, My grandpa bought a land with a hkuse situated on it. After his death, it was made a joint property with my grandma,father,three other uncles and aunt(paternal aunt). Presently the condition of our house is very delapidated and wrethed and as such,is becoming inhabitable. My father along wiyh other unckes want to construct a house in the vacant portion of the plot,or want a partition. Also,we all are in no way against giving our aunt her fair share. But she is determined that neither will she let us partition it,nor build a new house. Sir, even if she is given her share, can she stop us from living a better life ; and building a better future? Please reply asap sir, and please suggest ways to handle;if any.