Wedding of the year: Heiress Lou Hay marries property developer Jake O’Neil in Sydney

Two of Australia’s wealthiest families came together on Thursday for the wedding of heiress Lou Hay and property developer Jake O’Neil.

The couple tied the knot in a secret ceremony at the heritage-listed Carthona mansion in Darling Point, Sydney, surrounded by their close family and friends.

Lou, the daughter of the late Donald Hay, who founded cleaning products manufacturer Hayco in 1983 and built it into a major international company, stunned in a tulle wedding dress as she exchanged vows with the second-eldest son of millionaire superyacht broker and Rose Bay marina owner Denis O’Neil.

Inside the society wedding of the year: Heiress Lou Hay married property developer Jake O’Neil in a secret ceremony at a heritage-listed Sydney mansion on Thursday

Her wedding gown featured a strapless design, an embellished jewel bodice, a flowing train and romantic sheer sleeves. 

The socialite wore her long dark hair loosely over her shoulders, and her makeup consisted of lashings of mascara and soft pink lipstick.

Jake, meanwhile, looked dapper in a classic black suit and bow tie. 

Sealed with a kiss: Lou, the daughter of the late Donald Hay, who founded cleaning products manufacturer Hayco in 1983 and built it into a major international company, stunned in a tulle wedding dress as she exchanged vows with the second-eldest son of millionaire superyacht broker and Rose Bay marina owner Denis O’Neil

Blushing bride! Lou got ready at Sydney's Crown hotel with her friends and 'bride tribe' ahead of her lavish nuptials

Blushing bride! Lou got ready at Sydney’s Crown hotel with her friends and ‘bride tribe’ ahead of her lavish nuptials

Lou, who has already changed her surname on her social media accounts to O’Neil, shared a series of stunning images from their big day on Instagram on Friday. 

She simply captioned them with their wedding date, writing: ‘07.04.22’.

Jake’s sister Poppy O’Neil Tzaneros shared a sweet tribute to the bride and groom on their wedding day, writing: ‘Mr and Mrs O’Neil! Couldn’t be more proud and happy for my brother, marrying the girl of his dreams!’ 

Something blue: She was spotted chatting to guests outside of the hotel in a pair of blue pyjamas

Something blue: She was spotted chatting to guests outside of the hotel in a pair of blue pyjamas 

Family first: Lou's sister and bridesmaid Simmie arrived at the Crown Hotel in a slinky red dress with gold strappy heels, left, as her mother Bi Hay, right, looked gorgeous in a blue and white gown paired Manolo Blahnik stilettos that matched her daughter's bridal shoes Family first: Lou's sister and bridesmaid Simmie arrived at the Crown Hotel in a slinky red dress with gold strappy heels, left, as her mother Bi Hay, right, looked gorgeous in a blue and white gown paired Manolo Blahnik stilettos that matched her daughter's bridal shoes

Family first: Lou’s sister and bridesmaid Simmie arrived at the Crown Hotel in a slinky red dress with gold strappy heels, left, as her mother Bi Hay, right, looked gorgeous in a blue and white gown paired Manolo Blahnik stilettos that matched her daughter’s bridal shoes 

Dolled up; The socialite wore her long dark hair loosely over her shoulders, and her makeup consisted of lashings of mascara and soft pink lipstick. Pictured before changing into her gown

Dolled up; The socialite wore her long dark hair loosely over her shoulders, and her makeup consisted of lashings of mascara and soft pink lipstick. Pictured before changing into her gown

Lou revealed that despite getting married on Thursday, she and her new husband will also be celebrating with their extended family and friends on Saturday. 

She kept her thousands of followers up-to-date ahead of her nuptials, showing off a pair jewel-encrusted Jimmy Choo and Manolo Blahnik heels on her Instagram stories as she got ready at Sydney’s Crown. 

She also flaunted her gorgeous diamond earrings and bracelet that fit the ‘something borrowed and something blue’ category. 

Stunning: The couple tied the knot in a secret ceremony at the heritage-listed Carthona mansion in Darling Point, Sydney

Stunning: The couple tied the knot in a secret ceremony at the heritage-listed Carthona mansion in Darling Point, Sydney

All in the details: She kept her thousands of followers up-to-date ahead of her nuptials, showing off a pair jewel-encrusted Jimmy Choo and Manolo Blahnik heels on her Instagram stories as she got ready at Sydney's Crown

All in the details: She kept her thousands of followers up-to-date ahead of her nuptials, showing off a pair jewel-encrusted Jimmy Choo and Manolo Blahnik heels on her Instagram stories as she got ready at Sydney’s Crown

Dazzling:  She also flaunted her gorgeous diamond earrings and bracelet that fit the 'something borrowed and something blue' category

Dazzling:  She also flaunted her gorgeous diamond earrings and bracelet that fit the ‘something borrowed and something blue’ category

‘I can’t believe we are getting married today! Can’t wait to celebrate with more of our friends and family on Saturday,’ Lou wrote to her 33,000 followers.  

For the intimate ceremony, Lou had her sister Simmie Hay, sister-in-law-to-be Poppy O’Neil Tzaneros, Deborah Symond O’Neil, Alyce Tran, Caroline Tran, Hermione Underwood and India Banks as her bridesmaids. 

She gifted her bridesmaids some Chanel, La Mer and Estée Lauder gifts on her big day and got them to wear white silk robes to get ready in. 

'I can't believe we are getting married today! Can't wait to celebrate with more of our friends and family on Saturday,' Lou wrote to her 33,000 followers on Thursday

‘I can’t believe we are getting married today! Can’t wait to celebrate with more of our friends and family on Saturday,’ Lou wrote to her 33,000 followers on Thursday

Lavish: She gifted her bridesmaids some Chanel, La Mer and Estée Lauder gifts on her big day and got them to wear white silk robes to get ready in

Lavish: She gifted her bridesmaids some Chanel, La Mer and Estée Lauder gifts on her big day and got them to wear white silk robes to get ready in

Preparations: The girls all got ready by doing eye masks before the ceremony and are seen with their gift bags

Preparations: The girls all got ready by doing eye masks before the ceremony and are seen with their gift bags

'Bride tribe': For the intimate ceremony, Lou had her sister Simmie Hay, sister-in-law-to-be Poppy O'Neil Tzaneros (middle right), Deborah Symond O'Neil (far left), Alyce Tran, Caroline Tran, Hermione Underwood and India Banks as her bridesmaids

‘Bride tribe’: For the intimate ceremony, Lou had her sister Simmie Hay, sister-in-law-to-be Poppy O’Neil Tzaneros (middle right), Deborah Symond O’Neil (far left), Alyce Tran, Caroline Tran, Hermione Underwood and India Banks as her bridesmaids

For the ceremony itself, her bridesmaids wore stunning and colourful dresses. 

Lou and Jake got engaged in June last year. 

The brunette beauty, a content creator, took to Instagram to share with her 28,000 followers that O’Neil had gotten down on one knee in a Sydney cafe surrounded by family and friends. 

‘This morning… Heart is exploding,’ she wrote at the time. 

Lou previously lived between Hong Kong and London with her long-time Norwegian fiancé Nicolai Asplin.

The then-couple moved back to Sydney in 2020, where they threw a lavish engagement party at Bondi’s Icebergs, before breaking up within weeks.

Their story: Lou and Jake got engaged in June last year. 'This morning... Heart is exploding,' she wrote at the time

Their story: Lou and Jake got engaged in June last year. ‘This morning… Heart is exploding,’ she wrote at the time

Heartbreaking: Sadly, the fashion blogger's father Donald passed away in July 2019 from melanoma at age 76

Heartbreaking: Sadly, the fashion blogger’s father Donald passed away in July 2019 from melanoma at age 76

Turning heads: Simmie looked incredible as she stood by her sister's side on her wedding day

Turning heads: Simmie looked incredible as she stood by her sister’s side on her wedding day

She said at the time that the relationship ‘had run its course’.

Lou then reunited with Jake, who she had previously dated years earlier in high school.

Sadly, the fashion blogger’s father Donald passed away in July 2019 from melanoma at age 76.

Lou uses her platform to regularly urge her followers to get their skin checked while warning about the dangers of tanning.

Hong Kong-based Hayco, which sells toilet cleaning brushes, brooms and other household products, has 6000 employees and ships 200million items a year to more than 60 countries.

Empire: Hong Kong-based Hayco, which sells toilet cleaning brushes, brooms and other household products, has 6000 employees and ships 200million items a year to more than 60 countries

Empire: Hong Kong-based Hayco, which sells toilet cleaning brushes, brooms and other household products, has 6000 employees and ships 200million items a year to more than 60 countries

Meanwhile, Jake has followed in his successful father’s entrepreneurial footsteps and works for Addenbrooke, a luxury property development company.

Deborah Symond O’Neil made headlines in Sydney’s society pages in 2018 when she married Jake’s brother Ned O’Neil in a lavish ceremony in the Whitsundays.

The couple booked out Hamilton Island’s exclusive Qualia resort for the three-day long celebration.

Deborah, who has launched her own successful fashion retailer to rival the likes of Net-A-Porter, wore a custom-made $200,000 Christian Dior haute couture gown she had especially curated in Paris.

The couple flew 120 guests, including the ten men and women in their wedding party, to North Queensland where they used the hashtag #Neborah on Instagram to show off the day’s festivities.

Bridesmaids: Sister-in-law-to-be Poppy O'Neil Tzaneros (left) and Deborah Symond O'Neil (right) acted as bridesmaids

Bridesmaids: Sister-in-law-to-be Poppy O’Neil Tzaneros (left) and Deborah Symond O’Neil (right) acted as bridesmaids 

Making headlines: Meanwhile, Ned and Jake's sister Poppy Tzaneros (nee O'Neil), an interior designer, married Anthony Tzaneros - the head of IT at ACFS Port Logistics - in an equally as lavish wedding wearing a custom Jaton Couture gown in October 2020

Making headlines: Meanwhile, Ned and Jake’s sister Poppy Tzaneros (nee O’Neil), an interior designer, married Anthony Tzaneros – the head of IT at ACFS Port Logistics – in an equally as lavish wedding wearing a custom Jaton Couture gown in October 2020

Deborah and Ned met over a decade ago through family friends before realising their fathers were old associates. 

Deborah’s father John and step mother Amber McDonald split their time between the their waterfront Sydney mansion, $75million superyacht and London penthouse. 

Meanwhile, Ned and Jake’s sister Poppy Tzaneros (nee O’Neil), an interior designer, married Anthony Tzaneros – the head of IT at ACFS Port Logistics – in an equally as lavish wedding wearing a custom Jaton Couture gown in October 2020.

Deborah, Poppy and Lou are staples of Sydney’s high society social set, and regularly attend exclusive fashion and charity events together.

The trio often rub shoulders with socialite Nadia Fairfax, PR maven Montarna Pitt, The Daily Edited co-founder Alyce Tran, and her stylist sister Caroline.

Lou and Jake got engaged in June last year. The brunette beauty, a content creator, took to Instagram to share with her 28,000 followers that O'Neil had gotten down on one knee in a Sydney cafe surrounded by family and friends

Lou and Jake got engaged in June last year. The brunette beauty, a content creator, took to Instagram to share with her 28,000 followers that O’Neil had gotten down on one knee in a Sydney cafe surrounded by family and friends