How much i my house worth now, and i want to get a HUGE profit and sell it! any ideas to make a HUGE profit?

My house NOW is on the water, friendly neighborhood,its about 1 mile from st.clemetS island,st.clements island is where our country first began,1 working fireplace,but have 4 fireplaces, screened in porch,2 stories,2 peirs,about 6 ancres,2 car garage, not connected to house,its over 100 years old,its a farmhouse,local schools and post office and small store,3 bedroom, 1.5 bath,no air conditioning,heat with heaters,needs ALOT off improvements,Some leaking roof, attic that stands about 5''8',next to a seafood resturant,sidewalk, stone driveway,has TONS of windows cause back then they didn't have a/c,fenced in with plastic fences,paneling all through the house but 2 rooms,terrible foundation,and big shed. I want to put in a very long blacktop driveway,basement,home theater,4 bedroom,3 full bathroom,office,hardwood floors,marble,and carpet floors,no paneling,take out some walls, beautiful curb appeal,with metel and brick fence,pool,and a pool house. I DONT WANT TO GO TO ZILLOW.COM! Thanks!