anyone helps me about the renovation of an old house.

An older than 80 years house, poorly maintained, situates in a prime location of a sought after neighborhood in an expensive town (average house price>1MM.

Large lot, 3 times of an average lot in this town, matured trees in the backyard.

Decent square feet (> 3000), nice layout, just too old and smelly.

For your information, a lot close to this house is for sale, 1/3 of this house's acreage, asking $300K lower than this house. Another lot, with about same acreage, asking the same price with this one.

My question is: how much does it cost to renovate such an old house up to today's living standards?

Many thanks,