We are not told explicitly who owns Hunsford. We do know several things about it, and from these we can guess the owner.
Hunsford is where Mr. Collins lives at the parsonage. Hunsford also is the place where his parish is. Hunsford is, therefore, not an estate, but a village.
We know that Mr. Collins has been given his position by his patroness, Lady Catherine de Bourgh. The parsonage is very close to Rosings Park, where she lives. This makes it pretty clear that Lady Catherine actually owns the village of Hunsford, which would give her the right to choose its parson.
This sort of ownership of a village was common in England, and is also seen elsewhere in the novel. The parish Mr. Wickham would have been given at Pemberly was one of the villages on that estate. When Mr. Bennet says officers will not even be allowed through the village, he is talking about a decision he is allowed to make as owner of the village of Longbourn. His residence is referred to as Longbourn, but it is properly Longbourn Park.
Lady Catherine de Bourgh owns Hunsford in Pride and Prejudice. She also holds the patronage of the living at Hunsford Parsonage, where Mr. Collins serves as the rector.
Lady Catherine de Bourgh was the owner of the estate called Hunsford in Jane Austen's novel "Pride and Prejudice."
Mr. Collins, the cousin of Elizabeth Bennet, owns Hunsford Parsonage located on the Hunsford estate.
Charlotte and Collins lived at Hunsford Parsonage in the novel "Pride and Prejudice" by Jane Austen.
In "Pride and Prejudice" by Jane Austen, Mr. Collins lives at Hunsford with his wife, Charlotte Lucas, after they are married. It is also the location of Lady Catherine de Bourgh's estate, Rosings Park.
One of my copies of Pride and Prejudice has Elizabeth arriving at Hunsford to visit Charlotte in Chapter V of Volume II, and staying until Chapter XV of the same volume. The other copy does not go by volumes, and has the visit starting in Chapter 28 and ending in Chapter 38.
The Collins' parsonage in Pride and Prejudice is located in the village of Hunsford, which is said to be about 50 miles away from Longbourn, the Bennet family home. This journey would likely have taken several hours by horse and carriage during the Regency era.
In "Pride and Prejudice," Mr. William Collins is the rector of the parish of Hunsford, Kent. He is a distant cousin of Mr. Bennet and the heir to the Bennet estate. Kent is also the location of Rosings Park, the grand estate owned by Lady Catherine de Bourgh, another important character in the novel.
Mr. Collins is a clergyman, which means he is a member of the clergy or church. He serves as a parson in the fictional world of "Pride and Prejudice" by Jane Austen.
Marriage, Love, Pride, and Prejudice.
Pride and Prejudice was released on 11/11/2005.
There were three places in Pride and Prejudice where Elizabeth was proposed to. One was at Longbourne, the home of the Bennets. This was Mr. Collins proposal, which she refused. The second proposal was at Hunsford, the Collins home in Kent. This time Darcy proposed and she refused. The third proposal was while she and Darcy were walking near Longbourne. This time she accepted. The book has been adapted for film or television a number of times. The scene where Elizabeth refused Darcy in the 2005 movie was especially picturesque. This was at the Temple of Apollo at Stourhead Gardens, Warminster, Wiltshire, UK.
Longbourne is a fictional estate very near the fictional town of Meryton in Hertfordshire. The logic of its being fifty miles from the fictional Hunsford, in Kent, means that Longbourne is somewhere between about 15 and about 30 miles from the middle of London.