The typical cost per square metre for constructing an extension or conservatory is around Â£1,500 to Â£2,000 on average; another reason why a garage conversion is one of the most popular options for many people.he typical cost per square metre for constructing an extension or conservatory is around Â£1,500 to Â£2,000 on average; another reason why a garage conversion is one of the most popular options for many people.
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Wilsonville, Oregon. Wilsonville is a city primarily in Clackamas County, Oregon, United States. A portion of the northern section of the city is in Washington County. It was founded as Boones Landing because of the Boones Ferry which crossed the Willamette River at the location, the community became Wilsonville in 1880.