Peek inside Guy and Jules Sebastian's Sydney home

Guy and Jules Sebastian have opened the doors to their expansive Sydney home, giving fans a glimpse inside of their contemporary retreat.

WATCH: Inside Guy and Jules Sebastian's $3.1 million Maroubra mansion

"I'm going to be briefly hitting you with some house spam to show you our home which we just can't get used to," enthused Guy on Instagram.

"The house is all about privacy from the front but an enormous amount of natural light from the back. We made it clear from the start that we wanted loads of concrete and black steel - toughness in the architecture which is softened by the styling and landscaping."

Keen to take a look around? Let's get started...

Exterior

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Taking to Instagram, Jules Sebastian said that "every last detail was important to us when we designed our home. We wanted to inside to be just as beautiful as the outside."

Bathroom

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The luxe bathroom is a vision in terrazzo and glossy black surfaces. The sleek lines are softened by curved brass tapware and a pair of round mirrors.

Staircase

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An honour to design this space for @guysebastian as part of his home with @julessebastian. My goal is always to create a home that is uniquely for the person/family I am designing for. This space for Guy could only have been formed from his brief and his craft. The piano is on a natural stage at the heart of the house. The curves of the black piano and the white helical stair are the only curves in the building, forming a centre that the house radiates from. The sound of Guy's work filters through to the rest of the house while also becoming a focal point for a party. I love that the kids can hear Guy working while they get on with other things, not to mention say hi as they come home from school. Good design in a home should inspire and connect a family. #studiosnell #snellarchitects #Repost @guysebastian with @get_repost ・・・ Hey beautiful peeps. As some of you know @julessebastian & I have become quite obsessed with architecture and interior styling. We worked with the incredible architect @joesnelldesign to create something bold and unique. It was built by @profile_property_group. I'm going to be briefly hitting you with some house spam to show you our home which we just can't get used to! We seriously love waking up every day and are still in awe of what Joe has created for our family. This first one is my fav place in the home - where I sit and write most of my music. The house is all about privacy from the front but an enormous amount of natural light from the back. We made it clear from the start that we wanted loads of concrete and black steel - toughness in the architecture which is softened by the styling and landscaping. These huge windows and doors are such a statement - many thanks @awsaustralia and @viridianglassaustralia

A white helical staircase designed by architect Joe Snell takes centre stage in the home, providing a perfectly theatrical backdrop to Guy's piano.

"I am constantly side swiped that this staircase lives in my house!" said Jules.

"It's like a marshmallow-y piece of art right there when you open the front door!"

Performance space

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When we began creating our dream home I was very passionate about letting as much natural light in as humanly possible. After renting a few dark homes during the time of the build, I began to realise that a lack of light was affecting my mood. Since moving into our house, raising the blinds and letting that light in, the vibe is lighter, brighter and lifts my spirits. It's pretty safe to say that @viridianglassaustralia and @awsaustralia nailed the 'natural light' brief! These windows are doing their job! Oh - and how lucky are we to have a private concert from @guysebastian right there in the front room?! @joesnelldesign #webuiltahouse

Floor to ceiling windows allow light to flood into the living areas.

"Since moving into our house, raising the blinds and letting that light in, the vibe is lighter, brighter and lifts my spirits.

"It’s pretty safe to say that @viridianglassaustralia and @awsaustralia nailed the ‘natural light’ brief! These windows are doing their job!" said Jules.

Living room

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An expanse of concrete and black joinery sets the scene in the living room, which features a wall-mounted TV and an Escea fireplace. Kresta blinds come in handy on a hot day.

Boys' room

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Prior to all this craziness I took on the task of designing the boys wardrobes. As a mum of two kids it was imperative to make them functional and fit in with the look and feel of our home. @freedom_wardrobes have completely customisable wardrobes to suit every single home. Luxury style that you won't pay an arm and a leg for! The experts helped with some design functions that I never would have thought of, check out the fun way the boys display their awards and ribbons. Stay tuned as I take you through some (pre recorded) wardrobes of some pretty fabulous people.

In this video, Jules takes us on a tour of her sons' room, which features a bunk bed and custom Freedom wardrobes.

Kitchen

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The monochrome palette extends to the contemporary Freedom kitchen, which features an expanse of grey stone for the benchtop.

"This is a picture of it pre-ISO without the piles of husband, children and I splashed all over it," said Jules.

"I’ve always thought of the kitchen as the heart of the home, and now more than ever."

Dining room

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I have been working from home for the past year or so since moving into our new house, so I've collected some helpful tips for getting things done while working from where you are! +Get dressed -Although PJ's are the best things on the planet, getting dressed makes you change gears into work mode. I'm always more productive when I've put an outfit together. - Also, weirdly, when I put shoes on, I always feel a little more serious about whatever I'm doing. It's a mental thing, but it works for me! + Set up a space - Somewhere quiet - Somewhere with natural light - Somewhere you feel inspired - Put picture frames, prints or images that calm you an make you feel happy - Change it up every few hours or so. Take a wonder around the house, get your jiggles out and plonk yourself somewhere new. + At the ready have - Have a pen and notepad for any new idea's, notes from phone calls or to add to the to do list - Bottle of water filled up to sip on every few minutes - Hair tie for top knotting - A few healthy snacks (nuts, carrot sticks, fruit) + Prepare the night before - Make a to do list the night before. That way you can hit the ground running first thing. - Put your highest priority things to get done at the top of the list and work your way down from there - Chill your water bottle, prep your snacks, figure out lunch and pop it in the fridge. This will save precious minutes the next day. - Get a good night's sleep. You'll be a productivity machine during the day if you do! ++Extra tips -Make yourself a timetable for the day and stick to it -Try and move your body by going for a walk outside or doing a 30 minute HIIT session. A little bit of sweat and movement will clear your mind and give you energy - Put your phone on the other side of the room for an hour of power. It's amazing how distracting your phone can be when it's sitting beside you. Don't touch it for an hour and see how much you can get done! -If you get lonely, phone or FaceTime a friend for 10 mins. Otherwise, the second picture is quite effective also. DISCLAIMER - If you are currently home schooling, none of this will work!! Take a deep breath, surrender and love your kids!

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Black custom cabinetry runs the length of the dining room, which features a long walnut table. Framed artworks and sculptures add colour and texture to the space.

Pool

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Summer is almost here....can't wait! Growing up we didn't have a pool at home, I was always scheming my way into play dates with friends who did! We absolutely LOVE having this tub at home for endless days in the water with the kids. When we bought the land to build our house, the pool was pre-existing, so we decided to leave it right where it was and give it a little facelift. We retiled, added a pergola, a bbq area and the @millboard_decking . It's neither wood nor plastic which makes for anti slipping and splinters! Perfect for the little feet cannon balling from the deck! Can't wait for the good times to roll around this space. @joesnelldesign #webuiltahouse

The outdoor area has been given 5-star resort makeover, featuring a pergola, barbecue area and decking.