Royal fans were given a rare opportunity to wander through the grounds of Frogmore House this week, allowing them to get an inside look into the lives of the Duke and Duchess of Sussex.

The royal couple moved into Frogmore Cottage, on the Frogmore Estate in Windsor, earlier this year in May in preparation for the birth of their first child, baby Archie.

Today fans were able to take a tour around the royal retreat as part of a special charity event for the National Garden Scheme.

Lovely morning at Frogmore House and Gardens, before the crowds descended and the rain came 🌹🌸

I felt like a VIP driving down the Long Walk! @NGSOpenGardens @visitwindsor pic.twitter.com/4Bgfw1vENs

— Anne Robinson (@robbo_anne) May 28, 2019

While visitors were not allowed within 20 feet of Frogmore Cottage, some took a moment to “peer into” the windows and were unable to spot the new parents.

Some royal fans claimed they were able to walk past the gate of the cottage while others said they took photographs of the cottage despite being warned by police not to.

Although the gardens and estate are a sight to behold, many visitors made comments on the loud sound of planes flying overhead, while others wondered how the newborn royal manages to sleep through the constant noise.

Heathrow Airport is located just kilometres away from the Frogmore Estate, with 14 flights passing within just one kilometre of the house every 30 minutes.

The Duke and Duchess of Sussex are reported to have spent a staggering AUD$91,000 on soundproofing their home, in order to block out the loud noise.

One royal fan said it was maddening how close they and other visitors got to the home of Prince Harry and Duchess Meghan.

“'Couple of windows open and two shiny cars out front so someone's there ... Mad how close you can get,” they wrote.

“Although how they're getting Archie to sleep under this flight path is beyond me. Absolute racket.”

Frogmore House and Gardens are open to the public only three days of the year in honour of Charity Open Days where all the proceeds made from granting entrance to visitors goes towards selected organisations.

The gardens this year were open to visitors from May 28 to May 30.

Proceeds made from May 29 will go towards the British Heart Foundation and the last open day will be given to the National Rheumatoid Arthritis Society.