1 Average salaries graph: This graph shows average salaries for this role based on the salaries of jobs posted to reed.co.uk in the last three months. 2  Salary trends graph: This graph shows average salaries over the last 6 months based on a snapshot of jobs advertised on reed.co.uk in the last week of each month. Average salaries graph: This graph shows average salaries for this role based on the salaries of jobs posted to reed.co.uk in the last three months. 2  Salary trends graph: This graph shows average salaries over the last 6 months based on a snapshot of jobs advertised on reed.co.uk in the last week of each month.
1 Adding a basement to an existing house can cost $30,000-$70,000 or more, depending on the size of the existing crawlspace or half-basement or if the house is on a slab foundation, and how much of the work is do-it-yourself and how much is done by contractors. In warmer climates where the foundation does not have to be as deep (typically 18-20 for a crawlspace or a few inches for a slab foundation), including a basement adds more to the total cost of the house because it requires a lot more additional excavation, far beyond what would be done without a basement.
Adding a garage to a home can require an extensive amount of work, and for this project we will assess the cost of building an attached garage of 676 square feet (26'x26') to a pre-existing home (this is going to easily accommodate two vehicles, provide storage and even have room for a small work area).or the garage addition, the typical costs include: 1  According to author Stu Silverman the average cost of adding a garage begins at roughly $7,500, and for a two-car garage the average costs will go much higher. 2  This sort of structure will average at $27,040.