The vendors to this process are:
Contact the City of San Jose to determine what the zone and lot size requirements are for the subdivision.
A surveyor to determine the boundary lines.
An appraiser for value
A title officer to insure the title from one lot to the other is conveyed properly they can assist the attorney in the language needed for the Grant Deed.
If there are any easements and/or utilities associated with the lot the City and Municipalities will have their own requirements.
As advised by Allen, if there is a loan on the lot being sold the lien holder will need to approve the conveyance (sale).
Have an amazing day!
Both Mr. Lorenzo and Mr. Butterfield have given you good starts. Rather than a lot split, though, you should consider a "lot line adjustment". This is much cheaper than a lot split to do and usually requires less headache from the city. A lot split creates a new parcel. A lot line line adjustment moves land from one parcel to be included in the other parcel so one parcel gets bigger and the other neighboring parcel gets smaller. Normally, one consults a real estate attorney for these matters. Mr. Butterfield has suggested a good attorney in prior posts. I suggest you call Mr. Butterfield for the attorney's name. I am assuming that your neighbor is amendable to selling you part or all of his back yard and you two have established a price. In addition to an attorney, you'll need a surveyor. The city or county will require a survey of both lots before allowing the change.
You may want to establish a price through hiring an appraiser.
Lorenzo Real Estate Group
If you want to buy part of your neighbor's lot and split it off, that will require approval from The jurisdiction where the property is located.
In this case apparently the property is located in The City of San Jose. That would require approval from The City of San Jose for the lot split. You need to know what is the size of the lot? What are the zoning requirements where you are located? Does any part of the neighbors buildings encroach on the minimum setback requirements after the lot is split?
Charles Butterfield MBA
Real Estate Broker/REALTOR
Cell Phone: (408)509-6218
Email Address: firstname.lastname@example.org