The transfer of assets may be subject to stamp duty. The transfer may also give rise to a capital gains tax liability if the asset has increased in value since it was originally acquired.
It may be possible to structure the transaction in a way which reduces the tax consequences - for example, by giving the joint venture the right to use the assets rather than transferring ownership.
This is a complex area. If you will be transferring assets of any significant value, it is worth taking specialist tax advice.
