We earn a commission for products purchased through some links in this article.

The legendary interior designer tells us about her favourite memory at home.

As part of our interview series, My Happy Home, we sit down with legendary interior designer Kelly Hoppen to find out what tops her list for the worst décor trend of all time — and where she shops for the best bargains.

Multi-award-winning designer and TV personality Kelly Hoppen has over 40 years' experience in the world of interior design. She is the author of nine books, has appeared as an investor on BBC's Dragon's Den, was a guest judge on BBC Two's The Great Interior Design Challenge, and was made an MBE in 2009.

Elsewhere, Kelly has designed the homes, yachts and jets of private clients (such as Victoria and David Beckham), as well as five-star hotels and restaurants around the world. Her colourful portfolio includes the Celebrity Edge cruise ship for Celebrity Cruises, the LUX* Grand Gaube hotel in Mauritius, and a luxury residential tower block in Taiwan.

KH: Being able to completely switch off and savour the important things in life, like spending time with family and friends. Life is often so hectic — I like to keep my home as my sanctuary.

KH: I have lots of precious things that I've picked up at London markets like Colombia Road, Portobello and Kempton; this is my favourite kind of shopping by far. Some of the vintage pieces that I've snapped up for a bargain are now so full of sentimental value that they've become priceless. The wall mirrors from my K by Kelly Hoppen collection with QVC are great affordable statement pieces to give an instant update to any room.

KH: It's got to be Christmas time. It's one of my favourite times of the year to be at home with my family and spend time with my grandson, just playing for hours on end. I love that feeling of being in the moment with the ones I love at home — laughing, playing, and eating amazing food. There's nothing like it.

KH: Don't over analyse. You can spend so much time questioning yourself and going over minute details. If it feels wrong, it probably is — trust your instincts! If you're a naturally creative person, that is, if you're not, perhaps hire a designer and trust their instincts!

KH: Paul Bert Serpette is the flagship market of Les Puces de Paris Saint-Ouen, up on the north side of Paris. It's a must-visit for antiques and incredible, unique pieces. Wandering around there feels like stepping back in time. Closer to home, I can always count on Sunbury Place Antiques Market in Kempton for some unexpected gems, and around Notting Hill there are some incredible shops and market stalls.

KH: I'd love to have a snoop around Snoop Dogg's house!

KH: A photo of my father, Seymour. He passed away when I was young, so his picture is a real treasure to me.

KH: This one is easy. Having a delicious dinner followed by curling up on the sofa with my partner and a good boxset. My idea of heaven!

KH: Spending weekends in the country as I love the outdoors. Wide, open spaces and fresh air are the perfect antidotes to daily work stress. I designed a space outside my new home—a platform with a fire pit and Gervasoni chairs — so we can sit and take in the sunset on warm evenings and feel that connection to nature.

I like my outdoor space to feel like an extension of the house, and my indoor/outdoor rug from my QVC collection is perfect for creating a relaxing space when we're blessed with warm weather (or you can take it indoors when we're not!)

KH: The bedroom or the kitchen, although I'll be the first to admit that it's rarely for cooking! I love to sit and work at the dining table during the day; natural light pours in through the big window so it's a really serene space. It also transitions perfectly to entertaining in the evening, hosting guests around the island and enjoying great food and fabulous wine. The kitchen has to be multifunctional for me, so I kept the design light, airy, and decluttered, with a balance of contemporary features and some more rustic touches.

KH: Chaos! Interiors that are over-designed and excessively busy without any sense of cohesion would go straight into my Room 101. I believe that serenity and balance are such important, calming principles for good design in our already chaotic world.

KH: I have already been lucky enough to design my dream home! It's interesting how your priorities change with age, and the Cotswolds barn is a much calmer, more secluded spot than I would've envisioned for myself many years ago.

There are some things that are permanent treasures: my artwork collection; statement ceramics acquired over the years; and certain pieces that are full of sentimental value. The next dream? To create my perfect beach house — an utterly serene seaside haven.

Follow House Beautiful on Instagram.

Ideal for a garden bench or armchair, this delightful striped bolster cushion has a durable water resistant finish and piped edge for a stylish look.

Get the best of both worlds with this outdoor floor cushion – one side is a block natural sand colour and the other a sand stripe pattern on white. It has a water repellent polyester fabric, so it's perfect for entertaining and lounging in the garden.

This striking cobalt blue cushion not only looks good but it boasts eco credentials too – these cushions have been hand-woven in Italy from recycled plastic bottles. It's soft to the touch and comes with a sumptuous polyester pad for a luxurious yet firm feel.

This ditsy floral design is the perfect way to embrace summer. These outdoor seat pads (you can choose from a set of two, four, six or eight) are not only reversible but they're deep filled, bringing you extra comfort.

Ideal for both indoor and outdoor spaces, this stylish woven cushion hits the spot. It might be made from recycled plastic bottles, but it has a cosy softness to it.

If you're not sure what colour or pattern to go for, you can never go wrong with stripes in neutral shades. This white/grey cushion cover will provide an effortless update.

This fun and frilly gingham outdoor cushion is perfect to layer up on your garden sofa or bench. The shower-resistant cushion is made of cotton with a coating to repel light rainfall.

Keep warm on chilly summer evenings with this heated outdoor cushion. With three heat settings and pockets on the side, it will keep both your hands and body warm when the sun goes down.

Give your outdoor bench added comfort with this long cream cushion. Choose from a range of colours to find the right one for your space. Why not get the matching seat pads, too?

This waterproof garden cushion is perfect for your outdoor space. Thanks to its anti-fungal coating and waterproof lining, it's brilliant for alfresco dining. Barbecue at home, anyone?

Covered in a pretty bee print, this bench offers up a stylish way to enjoy alfresco dining. It's made with 100 per cent cotton that is water resistant with a wipe clean finish. For a cohesive look, you can also get the water resistant seat pad to match.

Give yourself extra comfort on a wooden chair with this floral seat mat, made of 100 per cent cotton with a cotton filling. So chic!

Bring a playful touch to your outdoor decor with this orange print garden cushion from M&S. With a water resistant finish, we particularly love the stylish braided edge. You get two for the price, too.

Comfortable and practical, this water resistant bench pad with a foam filling is perfect for alfresco dining. Any spillages can be cleaned effectively thanks to its showerproof cover and wipe-clean surface.

Inspired by Hawaii, this tropical floral design outdoor cushion is ideal to decorate your garden seating area. It's designed to withstand showers and spills.

Whether children are playing in the sunshine or you want somewhere relaxing to unwind, this blush pink floor cushion ticks all the right boxes.

READ MORE: Floor cushions: 15 styles to help you lounge comfortably

You can't go wrong with stripes! With a showerproof and UV resistant design, this striped outdoor cushion boasts a decorative piped edge, and is double stitched for added durability.