What’s Happening in Interiors — September 2026| Trend Report

August was a loud month for colour and an even better one for data. Two paint brands named their 2027 colours of the year within 48 hours of each other and neither picked a neutral. IKEA published its yearly research into how people actually live, and the kitchen bench came out of it badly. Two Australian renovations printed their full costs, line by line. Here’s what landed, and what any of it means if there’s a project happening at your place right now.

Interior Design Trends September 2026

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1. Two 2027 colours of the year arrived in the same week, and neither is a neutral

Valspar went first, on 24 August, naming Cottage Door (8004-38E) — a muted mid-blue it is positioning as a colourful neutral, sitting somewhere between a pastel and a navy. Its supporting palette is a warm grey and a creamy apricot pink. Two days later Behr announced Grounded (T27-01), a mossy olive with brown underneath it that reads greener in morning light and warmer by evening. Behr’s head of colour, Kayla Kratz, explained the pick by pointing at what green looks like under a tree canopy, sitting next to bark and soil. Both were covered by Design Milk.

The two brands didn’t land on the same hue, but they agreed on the direction: deeper colour, warmer materials, and a clear step away from pale off-whites. That lines up with what Pinterest’s search data has been saying since its Spring Trend Report in March, where searches for moody blue kitchens, sage green and cream kitchens and dark cottagecore kitchens were all up by hundreds of per cent. The Design Files also ran a roundup of twelve colourful homes in August making the same argument.

What it means at home: paint is the cheapest thing in any renovation to change your mind about, so this is a low-risk trend to try. Both colours are chameleons, though — an olive-green will swing yellow in a north-facing room and grey in a south-facing one, and that mid-blue does the same. Sample pots on the actual wall, looked at morning and night, before you commit to ten litres.

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2. IKEA asked 31,000 people about mess, and the kitchen bench lost

IKEA’s Life at Home Report 2026 was published on 24 August, built on a YouGov survey of 31,488 people across 31 markets, Australia included. The numbers worth knowing: 38 per cent admitted to a “silent protest” — leaving something out on purpose, hoping somebody else in the house deals with it. Thirty-seven per cent said kitchen benchtops cause arguments, and 24 per cent named the benchtop the single hardest surface in the house to keep clear. Sixty-eight per cent keep a drawer with no theme to it at all. And 59 per cent said they would rather a home looked lived-in than minimal.

What it means at home: a cluttered bench is a design problem, not a discipline problem. Everything that lands on it — keys, bags, chargers, the mail — is looking for a home within a step or two of the door it came through. Building that landing zone into the plan is far more effective than asking your family to be tidier. I cover landing zones and where they belong in the Kitchen Layout Dictionary, which goes much deeper into planning zones than one paragraph can.

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3. Two Australian renovations published what they actually cost

The Design Files ran two Renovation Diaries in August, and both included the real numbers, which almost nobody does. Yasmin Suteja’s Melbourne apartment came to $88,780 over three months: floors, paint and blinds $16,720; kitchen $14,300; appliances $12,520; electrical and plumbing $9,250; wardrobes $9,500; demolition $3,367; a new hot water tank $3,400. A second diary did the same for a 1950s Melbourne home (total $300,000).

What it means at home: look at what the money did. The joinery everyone photographs cost $14,300. The appliances that go inside it cost almost as much again, and the wiring and plumbing nobody ever sees cost $9,250 on top. If you are budgeting from Pinterest images, you are budgeting for about half the job. I broke my own kitchen down the same way in why my kitchen renovation cost $40K.

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4. The “we didn’t move a wall” renovation turned up twice, on two continents

On 18 August The Design Files published an Edwardian home in Preston by Alyssa Owens Design. Not one wall was moved. The change came from an earthy red, mulberry and terracotta palette, custom joinery by Emma Louise Interiors, and a layer of vintage lighting and art. Owens’ own summary was that they “got to see how far a home could shift without touching a wall”. Two weeks earlier Yellowtrace covered a Madrid apartment by Burr, reorganised so the rooms loop around the building’s core rather than hanging off a corridor.

What it means at home: different cities, same lesson. Before you price a structural change, it’s worth finding out how much of the problem is actually circulation, colour and furniture placement. Four of my six published projects kept the layout and the plumbing exactly where they were. That’s the whole idea behind Fix My Floor Plan — most awkward rooms are fixable without a builder.

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5. A Melbourne house designed for three generations

est living published Hawthorn House by Arent&Pyke in August, a Melbourne home designed around multi-generational living. It’s a brief I’m asked about more and more, and it’s rarely about adding square metres.

What it means at home: the things that make a multi-generational house work are unglamorous. A second sitting room that isn’t a formal lounge nobody uses. A bedroom on the ground floor with a bathroom beside it, so it still works in twenty years. And doors — real ones — where an open plan would otherwise force everyone to share one noise level. If you are extending for family rather than for resale, that list matters more than the finishes.

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6. Dezeen made the case for the window as the artwork

On 9 August Dezeen ran a lookbook of eight homes where a single slim-framed window does the job a painting would usually do — a clifftop bedroom in Portugal, a barn in Suffolk, a Whistler house looking straight into the tree canopy.

What it means at home: the affordable version of this isn’t a new window. It’s not blocking the one you already have. Move the tall bookcase off that wall, keep the sill clear, and don’t hang a busy curtain across the best thing in the room. Then hang less art on the walls either side of it, because the window is already doing that work.

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What this means if you’re renovating right now

Four practical things came out of this month.

• Colour is safe to be braver with. Two forecasters and a mountain of search data all point the same way, and paint is the cheapest decision in the house to reverse. Sample properly, in your own light.
• Design the storage before you choose the tapware. A third of households are arguing about the kitchen bench. Where the keys, bags and chargers live is a plan decision, and it has to happen early.
• Budget for the invisible half. Appliances, wiring and plumbing ate roughly a quarter of an $88,780 apartment renovation. Price those before you price the stone.
• Test the cheap fix before the structural one. Ask what colour, joinery and a different furniture layout could do first. Sometimes the answer is still “move the wall” — but you want to know that, not assume it.

The thread running through all of it, if there is one, is that the industry has stopped pretending homes are photographed empty. A colour forecast built around soil and bark, a survey where most people say they’d rather look lived-in than minimal, and two renovations happy to publish their receipts — that’s a fairly good month.

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Sources

• Design Milk — Behr’s 2027 Color of the Year and Valspar’s 2027 Color of the Year
• Ingka Group — IKEA Life at Home Report 2026
• The Design Files — Renovation Diaries, Yasmin Suteja’s apartment, the Preston Edwardian by Alyssa Owens and 12 colourful homes
• Yellowtrace — Burr’s AZ06 apartment, Madrid
• est living — Hawthorn House by Arent&Pyke
• Dezeen — eight interiors where picture windows frame the view
• Pinterest Newsroom — Spring Trend Report 2026

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