Open-Plan Kitchen-Living Design

By the MTN Kitchens & Joinery workshop team · East Tamaki, Auckland · 2025-08-02 · 11 min read

23+ years in trade · 2,000+ kitchens supplied & installed across Auckland · Laminex NZ fabricator

How to design an open-plan kitchen-living space that actually works: sightlines from the couch, hiding the mess with a scullery, taming acoustics, flooring transitions and quiet appliances. Auckland trade advice from MTN Kitchens.

Quick answer

Design an open-plan kitchen-living space around clear sightlines from the couch, a scullery to hide the mess, soft furnishings to tame acoustics, quiet appliances, and seamless flooring transitions. MTN Kitchens handles Auckland supply and install with trade pricing.

Knock the wall out between the kitchen and the lounge and the kitchen stops being a room. It becomes furniture. Everyone sitting on the couch is looking straight at your benchtop, your dish rack, the pan you didn't soak. We've installed over 2,000 kitchens out of our East Tamaki workshop across 23 years, and the open-plan ones are where people most often get the design wrong before we ever turn up to measure. They obsess over the door colour and forget the kitchen is now on permanent display in the most-used part of the house.

The Kitchen Is Furniture Now

Open-plan done well isn't about cramming an island in and calling it a day. It's about sightlines, where the mess hides, how loud the dishwasher is from the sofa, and what happens to your timber floor when it meets tile at the kitchen edge. Get those four right and the space works for the next twenty years. Get them wrong and you've built a beautiful room where someone's always shouting over the rangehood. Here's how we think about it on the tools.

Key points

  • The kitchen is now a piece of living-room furniture — design the side that faces the couch, not just the work side.
  • A scullery is the single best money you'll spend on an open-plan kitchen. It hides the mess and the noise.
  • Hard floors, hard benchtops and a high ceiling make open-plan loud. Plan acoustics before, not after.
  • Quiet appliances (rangehood, dishwasher) matter more here than anywhere else in the house.
  • Run one flooring material through the whole zone if you can — transitions are where open-plan looks cheap.

The kitchen is furniture now, so design the back of it

In a closed kitchen, nobody sees the bin cupboard or the side of the fridge. In open-plan, the island and the run of cabinetry facing the living space are on show every waking hour. That changes the whole brief. The face that points at the couch needs to read like a sideboard, not a work surface. That usually means panelled ends, a waterfall benchtop or a contrasting finish so the back of the island isn't just bare melamine carcass.

We push clients hard on this because it's cheap to get right at design stage and expensive to fix later. A 2-pac lacquer island front in a soft colour reads as a furniture piece. A timber or melteca panel on the return end stops the kitchen looking like it was dropped in. If the dishwasher, fridge and pantry can be integrated or tucked around a return so they don't face the lounge, the room calms down immediately. People underestimate how much visual noise three white appliance fronts add to a space they're trying to relax in.

This is also where two-tone kitchen design earns its keep. Darker, warmer tones on the island that faces the living area, lighter and more practical on the work wall. It lets the kitchen recede into the room instead of dominating it. And it's a design lever, not a cost lever — you're not paying more for cabinets, you're just choosing which face does which job.

Sightlines: what you see from the couch, and what you don't

Sit where the TV goes. Now look at the kitchen. That sightline decides your layout more than any work-triangle rule. The things you don't want in that line of sight are the sink (and the dishes that live in it), the bin, the toaster-and-jug clutter zone, and the back of the rangehood. The things that are fine on show are a clean run of doors, the cooktop if it's tidy, and the island.

Orientation of the sink is the classic decision. Put it in the island facing the lounge and the cook gets to face the room and the view while they work — great for entertaining, but every dirty dish is now front of house. Put it on the back wall and the dishes hide, but the cook turns their back on everyone. There's no universal right answer. For families who entertain a lot we usually steer the sink to the back wall and keep the island for prep and seating, so the social face stays clean. For a couple who cook together and love the view, island sink wins.

Cooktop placement matters too, and not just for looks. A cooktop on the island means a rangehood hanging in the middle of the room — it works, but it's a big visual object and the ducting run gets harder. Against the wall, the rangehood disappears into the cabinetry line and the ducting is short and direct. We cover the trade-offs in rangehood and ventilation: ducted vs recirculating, and it's worth reading before you commit to an island cooktop, because recirculating over an island is a compromise we see people regret.

The scullery is the best money you'll spend

If there's one thing that makes open-plan actually liveable, it's a scullery. A second small room — or even a recessed nook with a door or a wide opening — that takes the mess off the main bench. The jug, the toaster, the dish rack, the second sink, the microwave, often the dishwasher and a slab of pantry. All of it lives back there, out of the sightline, out of the acoustic line.

The main kitchen then stays clean because the working mess has somewhere to go. You prep on the island, the dirty pots go to the scullery sink, and the people on the couch never see it. For anyone who entertains, this is the difference between a kitchen you have to blitz before guests arrive and one that just looks tidy by default. We design and build a lot of these and the brief is always the same: get the noisy, messy, ugly stuff off the face that the living room sees.

You don't need a huge footprint. A scullery 1.2 to 1.5 metres deep with a bench down one side does the job. If space is tight, even a tall cabinet bank with an appliance garage and a roller door swallows the bench clutter. We go deeper on layouts and sizing in scullery and butler's pantry design for NZ homes — if you're building or renovating open-plan and you can find the square metres, it's the first thing we'd fight for in the plan.

Acoustics: hard room, hard surfaces, loud life

Open-plan spaces are loud and most people don't clock why until they're living in one. You've removed the walls that used to absorb and block sound, and you've usually paired that with a hard floor, a stone benchtop, a high or raked ceiling and big windows. Every one of those surfaces is reflective. A dishwasher running while someone watches TV and a kid does homework at the island — in a closed kitchen that's three separate rooms of sound. Open-plan, it's one room, and it echoes.

You can't fix this with the kitchen alone, but the kitchen contributes. Soft-close everything is non-negotiable here — the slam of a drawer or a door carries across the whole space and it's grating. We fit soft-close as standard and it matters more in open-plan than anywhere; we get into why in soft-close, drawers and the details that reduce callbacks. Beyond the joinery, the room needs soft surfaces somewhere: a rug, curtains over the big windows, an upholstered couch, even acoustic panels in the ceiling if it's a hard raked one. Tile or polished concrete plus stone plus glass with no soft furnishings is a space that will ring.

The scullery does double duty here too. Put the dishwasher and the second sink behind a wall and the noisiest part of the kitchen is partly contained. It's not soundproofing, but a half-height return or a door knocks the edge off the dishwasher hum during a movie.

The complaint we get isn't 'the kitchen's too small' - it's 'I can't hear the telly when the dishwasher's on.' Nobody thinks about that until they're sitting on the couch in their brand-new open-plan room. Plan for the noise before the walls come down.

Flooring transitions: the detail that makes or breaks the look

In a closed kitchen, you could tile the kitchen and carpet the lounge and a doorway hid the join. Open-plan, that join is in the middle of the room and it's brutal if it's done badly. The cheapest-looking thing in an open-plan space is a clumsy flooring transition — a strip of aluminium trim where the kitchen tile meets the living-room timber, sitting in the open for everyone to trip on and look at.

The clean answer is one floor through the whole zone. Engineered timber or a good luxury vinyl plank that runs from the front door, through the kitchen, into the lounge, no break. The space reads as one room because it is one. Modern flooring handles a kitchen fine — you don't need tile underfoot the way you did thirty years ago. If you must change material (say tile in a wet zone), make the transition deliberate: a clean shadow-line, a flush threshold, the change landing on a natural line like the edge of the island, not floating randomly in the middle of the floor.

This is a coordination job as much as a design one. The flooring, the kitchen install and the skirting all have to agree on levels. When we run an open-plan install we sort the sequencing with the builder so the kickboards, floor and benchtop heights all land where the plan says — which is the kind of thing we cover in coordinating kitchen install with your other trades. A 5mm height difference at a transition you see from the couch every day is the sort of thing that quietly bugs people forever.

Appliance noise and integration in plain sight

Appliances earn extra scrutiny in open-plan because you live with them in the room. Two specs move the needle: how loud they are, and how visible they are. On noise, dishwashers are rated in decibels and the gap between a budget unit and a quiet one is real — mid-40s dB is noticeable from a couch six metres away, low-40s and below mostly disappears. If the dishwasher faces the living area rather than hiding in a scullery, pay for the quiet one. Same logic for the rangehood: the cheap ones roar, and an island rangehood that roars sits right in the social zone.

On visibility, integration is the lever. An integrated dishwasher and fridge behind matching cabinet fronts means the lounge-facing run reads as joinery, not a row of appliances. It costs more in cabinetry and you give up a bit of fridge capacity, but in the room people actually see, it's often worth it. The microwave and the small appliances should not be on the main bench in open-plan — that's the scullery's job, or an appliance garage with a roller door that hides the toaster-and-jug zone behind a single clean line.

What Makes The Room Work

Layout, the island, and where people actually stand

The island usually anchors an open-plan kitchen because it does three jobs at once: prep bench, casual seating, and the boundary between kitchen and living. Get the size and the circulation right and it's the heart of the room. Get it wrong and it's a traffic jam. We always check the gaps — you want roughly 900mm to a metre of clearance around the island so two people can pass and a dishwasher door can open without blocking the walkway. Stools need a 300mm overhang of benchtop to tuck knees under, which means the island has to be deep enough to carry both the working side and the seating side.

Think about where the people who aren't cooking end up. In open-plan, guests gravitate to the island. So you don't want the cook's prep zone and the cooktop on the same side the guests lean on — the host ends up reaching past someone's wine glass to get to the hob. Keep the cooking work on one face, the social leaning on the other. The classic kitchen layouts — galley, L-shape, U-shape — all still apply, but in open-plan the island's relationship to the living space is the decision that matters most, and our kitchen island design and sizing guide walks through the dimensions in detail.

Sink and cooktop placement in open-plan: the trade-offs
DecisionOn the island (facing living)On the back wall
SinkCook faces the room, dishes on showDishes hidden, cook faces wall
CooktopRangehood hangs in the room, longer ductRangehood in cabinetry line, short duct
Best forCouples, entertainers, view homesFamilies, frequent cooks, tidy face
Scullery presentLess critical — mess already containedPairs well, back-wall mess stays back

A worked example: a Flat Bush new build

Here's a real-shaped scenario. A family building a four-bedroom home in Flat Bush, open-plan kitchen-dining-living running 9 metres along the back of the house, big sliders to the deck. They came to us with a plan showing a single long galley kitchen along the back wall and a 3.2-metre island facing the living room. The sink and dishwasher were drawn into the island — sounded great, faced the view.

We pushed back on two things. First, dishes on the island meant the dirty side of the kitchen faced the couch and the deck where everyone would gather. Second, a 9-metre hard-surface room with a raked ceiling and big glazing was going to be loud. So we reworked it: the sink and dishwasher moved to the back wall, and we carved a 1.4-metre scullery into the corner near the pantry — second sink, the jug-and-toaster zone, microwave and a tall pantry bank, plain melteca finish back there. The island kept the cooktop and seating, with a waterfall stone end facing the living room and a 2-pac front so it read as furniture. Soft-close throughout, integrated dishwasher front, a quiet low-40s dB unit. Engineered timber ran unbroken through the whole zone, no transition strip in sight.

The kitchen got cheaper on the scullery (plain finishes nobody sees) and the spend moved to the island face and the integration where it counts. Quote turned around inside 24 hours, supplied and installed by our crew in a single 5-to-7-day install under one contract and one invoice. The family now blitz the scullery, not the whole kitchen, before people come over — which is exactly the point of designing it this way. If you're weighing finish levels against budget on a job like this, renovating a kitchen without blowing the budget covers the same logic of spending where it shows.

Lighting and storage tie the room together

Lighting in open-plan has to do two jobs that fight each other: bright task light over the bench, and warm, dimmable ambience for the living side. One flat layer of downlights does neither well. You want layered lighting — task light over the cooktop and bench, under-cabinet strip so the splashback doesn't sit in shadow, and pendant or feature light over the island that reads as a living-room fitting, not a worklight. All of it on dimmers so the same room can be a kitchen at 6pm and a lounge at 9pm. We get into the layers in kitchen lighting: task, ambient and under-cabinet.

Storage is the other quiet hero. In open-plan there's nowhere to dump clutter, so the kitchen has to swallow more than it would in a closed room — and it has to do it behind clean fronts, not open shelves full of visual noise. Deep drawers, a dedicated bin drawer so the bin's never on show, an appliance garage for the bench-top gear. The mess has to have a home or it ends up on the island, in everyone's sightline. We list the storage that actually pulls its weight in kitchen storage solutions that actually get used.

  • Island clearance: 900mm to a metre so two people can pass and a dishwasher door still opens.
  • Stool overhang: 300mm of benchtop past the working depth, or knees don't fit.
  • Scullery: 1.2 to 1.5 metres deep with a bench down one side.
  • Levels: floor, kickboard and benchtop heights agreed with the builder before install.

What it costs, and what moves the number

There's no honest single price for an open-plan kitchen because it scales with how much furniture-grade joinery faces the room and how big the scullery is. The levers are straightforward, though. Benchtops are the biggest swing: laminate keeps it tight, engineered or natural stone with a waterfall island lifts both cost and the look of the lounge-facing face. Finishes are the next lever — 2-pac lacquer on the visible faces costs more than melteca, which is exactly why we put the 2-pac where it shows and the melamine in the scullery. We break the benchtop decision down in laminate vs stone benchtops: cost vs value.

The scullery adds cabinetry and a second sink's worth of plumbing, but you claw a lot of it back with plain finishes back there. Integration (panelled appliance fronts) and a quiet appliance spec are real adds, but they're the ones that change daily life in an open-plan room, so we'd rarely cut them. Because we work trade and wholesale out of our own workshop with no showroom markup, the money goes into the kitchen rather than into a retail margin. If you want to understand what you're actually paying for line by line, how to read a kitchen quote is the one to read before you compare quotes — open-plan quotes especially, because the furniture-grade faces and the scullery can be itemised very differently between suppliers.

Frequently asked questions

Do I really need a scullery, or is it a luxury?

It's the highest-value addition in most open-plan kitchens, not a luxury. It takes the mess and a chunk of the noise off the face the living room sees, so the main kitchen stays tidy by default. If you can find 1.2 to 1.5 metres of depth, fight for it in the plan.

Should the sink go in the island or the back wall?

Island sink lets the cook face the room and the view but puts dirty dishes on permanent show. Back-wall sink hides the dishes but turns the cook's back to everyone. For families who entertain we usually go back-wall; for couples who love the view, island. There's no universal right answer — it depends who's cooking and how often.

How do I stop an open-plan space being so loud?

Hard floors, stone benchtops, glass and high ceilings all reflect sound. The kitchen's part is soft-close on everything, quiet appliances, and containing the dishwasher behind a scullery wall. The room's part is soft furnishings — a rug, curtains, an upholstered couch, acoustic panels in a raked ceiling. Plan it before the walls come down, not after.

Can I run the same floor through the kitchen and living area?

Yes, and you should where you can. Modern engineered timber and quality vinyl plank handle a kitchen fine, and one unbroken floor makes the space read as a single room. Avoid a transition strip stranded in the middle of the floor — it's the cheapest-looking detail in an open-plan space.

How quiet does the dishwasher need to be?

If the machine sits in the run facing the lounge, low-40s dB or quieter is the target — at mid-40s you'll notice it over a movie. Behind a scullery wall you can drop back a grade, because the wall is doing some of the work for you. In a closed kitchen none of this would matter.

Does MTN Kitchens both supply and install?

Yes — one contract, one invoice. We manufacture in our own East Tamaki workshop and install with our own crew, typically a single 5-to-7-day install. That matters for open-plan because the flooring, benchtop heights and kickboards all have to coordinate cleanly in a room you see every day.

Open-plan rewards planning the boring stuff early — sightlines, the scullery, the acoustics, the floor join — because those are the things you live with long after the door colour stops mattering. If you're building or renovating an open-plan kitchen-living space anywhere in Auckland, send us your plans or a rough brief and we'll tell you straight where the money should go and where you can save. For developers and builders, send the unit count and the spec — we'll have trade pricing back to you within 24 hours, supplied and installed under one contract from our own workshop.

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