Is THIS Pippa Middleton's wedding dress? Stylists are seen arriving at the bride-to-be's house carrying white garment bags - and the Duchess of Cambridge's hairdresser is there too

MARQUEE £100,000 - The  glass conservatory-style structure that she is having installed in the garden of her family home is for Saturday’s celebrations. The bespoke glass orangery was shipped from Belgium to her family home in Berkshire. The process is being overseen by Peppers Marquees, which holds the only royal warrant for supplying marquees to the Prince of Wales. 

DRESS £10,000 - 'Giles Deacon is rumoured to be the designer of Pippa’s bespoke designer dress,' says Bridebook founder Hamish Shephard. 'Giles previously designed Abbey Clancy’s stunning wedding dress for her marriage to England footballer Peter Crouch which cost £10,000.'  

WEDDING HAIR £300 - The Duchess of Cambridge's royal hairdresser  Amanda Cook Tucker was seen arriving at the home of the bride-to-be on Tuesday. It is predicted that she will style Pippa on her big day with her wedding price said to be £300.

CATERING £70,000 -  Experts from The Bride Book predict that top luxury London caterers will charge over £170 per guest for catering including all food, chefs and staffing, glassware and crockery hire, and linen hire. 

A marquee wedding requires an extra level of staffing compared to a permanent venue, which will increase Pippa’s catering costs to around £200 per guest, and will comprise the largest cost of the wedding. 

DRINKS £17,720 - 'We expect around 233 bottles of champagne alone will be drunk to keep the guests topped up during the drinks reception and speeches,' says Hamish. 'This champagne will cost around £9,320, on top of which will be fine wines for the wedding breakfast and open-bar cocktails for the evening.' 

FLORISTRY £16,000 - Hamish says: 'Marquees always require a lot more floristry and decoration than a venue, so luxury florists Lavender Green, the florists for the day, will have their work cut out. On top of this, the wedding florist will include the flowers for the church, plus the bouquet and more.

'With the wedding hosted in the Middletons' rustic garden, with wild flower meadows and in-bloom purple rhododendrons, expect tall overflowing centrepieces fusing the marquee with the garden. Elaborate table-centres can cost £300 each alone, so with 35 round tables for the guests, the cost can easily stack up.' 

PHOTOGRAPHY £3,500 - 'Hiring one of the top wedding photographers, including a gorgeous album, will cost around £3,500. Dorset-based Millie Pilkington, the private wedding photographer for William and Kate’s wedding, is most likely to be the person behind the lens.'

VIDEOGRAPHY £4,000 - 'Without the world’s media filming every moment like her sister’s wedding, Pippa will likely have a videographer there to capture the day’s special moments. Luxury videographers have teams of cameramen to capture all angles, plus usually a drone or two.'

CAKE £2,600 - 'A stunningly-decorated cake from a top cake maker will start from £2,600 and need to be six-tiers to give a slice to each of the 350 guests. The cake-maker is thought to be luxury London-based Domino Purchas or local-Berkshire based top baker Rosalind Miller.'

STATIONARY £5,125 -'The wedding will require a number of stationery elements including save-the-dates, the invitation, the Order of Service, the menus, and the stamps! Invitations from a top stationer will cost around £11 each before the other items are included. Mount Street Printers are said to be the chosen stationer.' 

GYM MEMBERSHIP £55,000- Pippa has been hitting the gym hard and has joined Grace Belgravia, an exclusive club that promises to create the perfect ‘Hollywood’ pins - at a cost of £55,000 for a lifetime membership. 

FACIALS £100 - Pippa has been making trips to a spa in South Kensington offering such treatments as £100 sugar cane facials.  

MUSIC £6,750 - 'From bell ringers and the organist and choirs in the church, to relaxed acoustic musicians for the drinks reception and a top wedding band and DJ for the party, music will be the centre of the entertainment. A top London 6-piece wedding band will cost over £4,250 with everyone else on top.'

WEDDING RINGS £19,900 -'Rumoured best man Spencer Matthews better not make the expensive mistake of forgetting the rings. With their wedding rings said to be from Cartier, a diamond encrusted wedding ring for Pippa will cost £15,500 whilst a platinum band for James would be £1,440.'

BRIDESMAIDS' OUTFITS £2,250 - 'Whilst the bridesmaid’s dress Pippa shone in at the Royal wedding cost over £2,000, the average cost of a designer bridesmaids dress is £750. The average number of bridesmaids a bride in the UK has is 3.4, so we are assuming Pippa will have 3 bridesmaids.'

CHARLOTTE AND GEORGE'S OUTFITS £1,698 - 'With Prince George and Princess Charlotte due to be centre stage as flower girls and page boys, Nicki Macfarlane, who provided the flower girl outfits for the Royal wedding, will likely be back on hand. A page boy outfit will cost around £226 each, and flower girl dresses £340.' 

CHURCH FEES £456 - 'Pippa and James will need to pay the church their marriage fees, but whilst this is the most important part of the marriage, it has one of the smallest price tags.'

DECORATION AND PRODUCTION £6,000 -'For spectacular lighting and production throughout the grounds surrounding the marquee and inside the marquee itself, a top London agency will likely be taking on the job of adding the absolute wow-factor. From bar hire to amazing dance floors, production is key to transforming the blank-canvas of a marquee into something truly jaw-dropping.'

GROOMSWEAR £6,050 - 'Dashing groom-to-be James Matthews is likely to be wearing a bespoke tailor made tailcoat, waistcoat and trousers from one of London’s top Saville Row tailors. A bespoke tailcoat from a top tailor will cost around £4400 alone.'

MAKEUP UP TO £1,400 - 'No doubt a top team will be on hand to ensure Pippa and the whole bridal party will be looking absolutely radiant. Hannah Martin of Bobbi Brown, who also did Kate’s wedding makeup  for the Royal Wedding, is the top choice.

WEDDING FAVOURS £700 - 'These lovely little gifts for every wedding guest should not break the bank. We expect something low-key and personal, such as a small jar of local honey considering the wild flower meadows that fill the Middletons’ garden.' 

LUXURY LOOS £4,000 - 'Don’t forget the toilets! With this marquee wedding the luxury toilets that will need to be on hand are unlikely to be the plastic boxes we are used to seeing at festivals. Imagine luxurious bathrooms with gorgeous soaps and fresh linen hand towels. For 350 guests, top end mobile toilets will cost £4000.' 

VEIL £2,000 -'Celebrity milliner Stephen Jones is rumoured to be the designer of Pippa’s bespoke veil, which will doubtlessly have incredible attention to detail.' 

ENTERTAINERS £1,500 -'Whilst guests taking photos is expected to not be allowed at the wedding, a photobooth will be an ideal opportunity to capture the guests at their best. Luxury children’s entertainers, like London’s based Sharky+George who did the Royal wedding, are expected to be on hand to give parents, like William and Kate, the night off.'

TOTAL ESTIMATED SPEND: £337,049  

It seems not everybody's happy about Pippa Middleton and James Matthews' upcoming nuptials. 

Members of the public have taken to social media to comment on the bride-to-be and her wedding, with some saying they are 'so bored' of hearing about it.

One Twitter user said that the 'no ring no bring' policy is a 'somewhat pressuring' while others said it was the demand of a 'bridezilla.' 

Twitter user Jardy wrote that they 'really don't get the big deal about Pippa Middleton' and that she is just somebody who 'once attended a wedding and is now having one.'

Woyen said that will be relieved when the big day is over because she is 'so bored' of hearing about it all of the time 

Lisa took to social media to have her say on the 'no ring, no bring' policy that Pippa has apparently implemented at her wedding

Pat also took to Twitter to comment on the 'no ring, no boring' policy and claimed that it was the work of a 'bridezilla'