At $4.9 million, 5190 Sky View Drive in Upper Saucon Township is the most expensive home for sale in the Lehigh Valley. It falls within the Southern Lehigh School District, already the priciest district that had the largest increase in average sales price in 2015 out of the Lehigh Valley’s 17 school zones.

Near Saucon Valley Country Club, a sloping road winds its way toward a sprawling community of mega-homes, surrounded by scenic rolling hills and a dense pocket of trees.

Here, on a 3 1/2-acre ridge overlooking exclusive neighborhoods, sits the most expensive home for sale in the Lehigh Valley.

At an asking price of $4.9 million, the custom-built home with a European flair boasts 35 rooms on three levels and 8,500 square feet of living space, accessible by an elevator or wrought iron spiral staircase.

It features a billiards room, a pub, a theater and a brick wine cellar that can hold thousands of bottles. The home's technology — including a mechanical control room outfitted with an air-conditioning system to keep electronic components cool — is befitting of any Silicon Valley mansion.