Spectators have been flooding over to the construction, near the old practice courts at Aorangai Park, which, when completed in 1997, will hold 11,000 people.
"This is the most ambitious improvement programme at the All England club since we moved to Church Road in 1922," said a Wimbledon spokesman.
"And we are delighted that so many visitors to the Championships are finding it so fascinating.
"After all, the new Court One is for them and we are pleased to be able to show it to them - it will be something Britain will really be proud of."
In true Wimbledon style, construction was halted in May "to achieve an aesthetically pleasing outlook for the Championships."
Even the new concourse surrounding the court was painted green and in the autumn the carpet of turf will be laid.
"A key consideration throughout the planning process has, of course, been to ensure that it's business as usual this year and we are confident we have achieved this," the spokesman added.
A trip to the construction site takes spectators past the gaggle of merchandising shops at Wimbledon, where a nine-carat gold tennis charm bracelet costs a cool pounds 480.Reuse content