It will soon offer it's future residents a lovely view of tent-town. That aught to boost sales.
Yes, the "hard-hat" tours will not be good. It has to be affecting sales, even if it's not easy to measure. How many people look at the website, then go look at the site, before they ever make contact with the sales office? But I'm sure that Chard's people also follow up all their leads, so they get feedback from those that have contacted the sales office.