Pippa Middleton hosting her own New Year's Eve bash

Pippa Middleton is to throw her own New Year’s Eve bash to celebrate her achievements in 2011, Metro.co.uk reports.

The newly christened author, who allegedly received a £400,000 advance on first her party planning book, will host the do at her parents Berkshire mansion.

Just in case there’s not enough room there, the 28-year-old sister to the Duchess of Cambridge, has rented an entire hotel nearby her parents digs to cope with the overspill.

According to a source, Pippa decided that she needed to treat her friends after seeing her career skyrocket in 2011. The youngest of the two Middleton’s has spent the majority of the year working on various party planning deals, including the lucrative six-figure book contract.

Her passion for the role is evident on her parent’s website, where Pippa is often seen offering up tips for hosts of function venues, weddings, and even children’s parties.

“She’s gone from being largely unknown to one of the most recognised women in the world,” a source told The Sun newspaper. “So she decided to hold a big party to thank everyone,” they said.

While Pippa parties the night away in Berkshire, her sister Kate and brother-in-law Prince William, both aged 29, are thought to be celebrating at the royal family residence in Balmoral.