And,I would contact a local real estate professional to save time and money.
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Also extremely important, contact your town's building inspectors office regarding rebuilding on the site. You will need to look into the rules, regs of building footprint, existing structure, foundation pre-existing, BEFORE you do anything to your existing property.
Best of Luck,
The simple rough estimate of real estate taxes due for your new home will be to take the town of Hopkinton's current tax rate x the estimated value for your new home. You could get that answer by going to your town hall assessors office, look up recent sales of houses like the one you will build in similar neighborhood and use those assessed values to plug into the formula:
town's tax rate x extimate of similar houses value = your estimated tax rate.
Hope this is helpful! You can contact me: http://www.joycekelleyhomes.com
Best of luck with your plans,
Just make sure you can justify the cost, as well as understanding the permitting process. If it is a conforming lot it is a relatively easy process. If it is non conforming and require variances then it can become quite a bit more involved.
Hayden Rowe Properties