Cost Of Second Floor Extension

Cost to add a second story.

Cost of second floor extension. A second storey addition can cost between 1 850 and 3 300 per square metre depending on the quality and price of construction materials and inclusions and if your ground floor foundations need reinforcing to carry the load of the extension. The average cost to add a second story is 100 to 300 per square foot. Average price for this would bee 9k to 11k but not sure if the foundations would be strong enough to build on existing foundations you would need to find if the foundations are deep enough through a structural engineeri noticed you have planning permission so foundations may be ok to build on.

There are other costs to factor in including council costs and engineers reports. With 30 years of experience in building 2 nd storey additions we estimate that the cost of second storey addition starts at around 220k. Hiring a remodeling contractor to build a second floor addition can run 100 300 a square foot for the typical addition 2 3 bedrooms and a bath plus a flight of stairs but can go as high as 400 500 per square foot depending on complexity quality of materials and local labor rates.

A typical example for this price would be a second storey that includes a master bedroom with an ensuite walk in robes and an upstairs living area.