Happy Halloween for Jonathan Ross as he goes all out on decorations for annual house party

PUBLISHED: 09:38 EST, 31 October 2012 | UPDATED: 10:34 EST, 31 October 2012

Every year he throws the mother of all Halloween parties for his showbiz pals and it looks like this year is no different.

Chat show host Jonathan Ross spent the day before his legendary party preparing for Wednesday night, as a team of builders and decorators got to work.

This year the 51-year-old is going for a new theme as he seemed to be transforming his Hampstead house into a haunted castle, complete with dungeon.

Major construction: Builders get to work on Jonathan Ross' house the day of his annual Halloween party

His next door neighour seemed to be embracing something similar and could well be part of the night's festivities.

The front of the house was covered in large cobwebs with a huge, black spider sitting over the front door, while the windows were covered from the inside with scary orange hangings.

Alluding to Jonathan's love of comic books, a number of life size action figures including Superman and Batman could be seen dotted in the grounds of the two properties.

Going all out: Jonathan seems to be doing some major work to his house to turn it into a castle with dungeon for his party

Next door: Jonathan Ross' neighbour's house is decked out in a spider web with a giant spider sitting over the door

Going gothic: Jonathan's helpers add the finishing touches to to the outside of the house

A team of builders spent Wednesday morning round the back of the TV presenter's house, turning the walls into a medieval dungeon complete with barred windows.

Clearly trying to go one better than last year, Jonathan's helpers nailed large MDF boards right round his house and painted then to resemble large stone bricks.

Last year: Guests including Michael McIntyre and Heston Blumenthal got dressed up for last year's bash

Having a blast: Last year Jonathan dressed as a pirate as he welcomed his showbiz pals to his North London home

Last year Jonathan dressed a as a pirate for his party, complete with eye patch and facial scar.

Guests including Jimmy Carr, David Walliams, Simon Pegg, Michael McIntyre and Frank Skinner showed up to the elaborate party, making an effort with their costumes.

The afternoon of the party, the radio DJ took to Twitter to tweet a teaser picture showing a mangled body with his pigs:

'The pigs are getting ready for Halloween...,' he wrote.