Some houses hide their best room behind a wall. For a young family in Cheadle Hulme, the space they used most was the one they liked least — a narrow, north-facing galley kitchen that turned its back on a lovely garden. Fourteen weeks later, it had become the heart of the home. This is how we got there.

The brief

Sarah and James came to us with a classic 1930s semi on a quiet residential street in Cheadle Hulme — the kind of solid, bay-fronted family home you find right across this corner of Stockport. On paper it had everything they needed. In practice, the kitchen let it down badly. It was a cramped galley, barely wide enough for two people to pass, tucked along the side of the house with a single small window and a door that opened onto the passageway rather than the garden. With two young children, mealtimes were chaotic, and whoever was cooking was effectively cut off from the rest of the family.

Their brief was simple to say and harder to deliver: they wanted light, space, and connection to the garden. An open-plan kitchen-diner where they could cook, eat and keep an eye on the kids playing outside, all in one room. But they had real, sensible worries alongside the ambition. Budget was firm — this was a considered, once-in-a-decade investment, not a blank cheque. They were planning to live on-site throughout with two children under six, so the disruption frightened them. And like a lot of homeowners around here, they were nervous about planning: the semi backs onto neighbouring properties, and they didn't want to spend months tangled up in applications or fall out with the people next door.

Our solution

The dead space in a house like this is almost always the side return — that thin strip of alleyway running alongside the original kitchen that does nothing but gather bins and leaves. Our design claimed it. We proposed a wrap-around kitchen extension that filled in the side return and pushed out to the rear in a single-storey addition, knocking the old galley, the reclaimed alley and the new footprint together into one generous open-plan room spanning the full width of the house.

Light drove every decision. Because the garden faces a good aspect, we specified a run of bi-fold doors across the rear so the whole back of the house opens to the outside in summer — exactly the connection Sarah and James had asked for. But bi-folds alone don't fix a deep-plan room; the middle can still feel gloomy. So we set a large roof lantern over the dining zone to pour daylight down into the centre, well away from the glazed rear wall. The result is a room lit from two directions at once, bright even on a grey Cheshire morning.

For the layout, we zoned the space rather than leaving it as one undifferentiated box: kitchen and island toward the return where the services already ran, dining under the lantern, and a soft seating corner by the bi-folds. Materially, we kept it warm and unfussy to suit the age of the house — a brick plinth and render to tie the addition to the existing elevations, a crisp flat roof detail, and a large-format porcelain floor that runs unbroken from inside out to the new patio, which visually doubles the sense of space.

On planning, we were able to reassure them early. A single-storey rear and side extension of these dimensions fell comfortably within permitted development, so no full planning application was needed — we handled a Lawful Development Certificate for peace of mind and to protect resale, and managed the Party Wall process with the adjoining owner properly and courteously. Being design-and-build, with our own architects in-house, meant the people who drew the roof lantern were the same people who later had to build it. There was no gap between design and delivery for problems to fall into, and no finger-pointing between an external architect and a separate contractor. One team, one point of contact, one quote.

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The build

We sequenced the 14 weeks deliberately to keep the family functioning. Before a single wall came down, we helped Sarah and James set up a small temporary kitchen — a worktop, sink, kettle and microwave — in the front reception room, and we dust-sealed the doorway between the works and the rest of the house. That one step made living on-site genuinely liveable.

Groundworks came first. We dug and poured new foundations across the side return and rear footprint, which on this street meant careful attention to the existing drainage runs and a build-over agreement for a shared sewer — not unusual for 1930s semis in Stockport, but exactly the kind of thing that catches out less experienced builders mid-project. With the slab down and the new walls up to height, we reached the pivotal day: removing the original rear and side walls and installing the structural steel. A goalpost steel frame now carries the loads that those old walls used to, which is what makes the open span and the wide bi-fold opening possible. We propped, cut, dropped the beams in and made everything good in a tightly controlled sequence, so the house was never left exposed overnight.

From there it was roof and weathertight envelope, the lantern and bi-folds craned and set, then first-fix electrics and plumbing, plastering, and the fit-out of the kitchen itself. The one genuine surprise was underground: the old drainage wasn't quite where the historic plans suggested, so we adapted the run on-site rather than downing tools for a fortnight — a small redesign, absorbed without moving the completion date. Throughout, we kept the working day predictable, tidied the site every evening because children were living feet away, and gave Sarah and James a clear weekly look-ahead so they always knew what the next few days held.

The approach we'd take forward

What made this project work wasn't any single clever detail — it was the discipline of thinking the whole thing through before we broke ground. Because the same team designed and built it, the roof lantern's position, the steel sizing and the drainage strategy were all resolved on paper first, so the site work was execution rather than improvisation. That's the real value of design-and-build for a homeowner: the risk of the two halves not talking to each other simply disappears.

Local knowledge earned its keep too. Having worked on plenty of these inter-war semis across Cheadle Hulme and the wider Stockport and Cheshire area, we knew before we started where the shared drains were likely to sit, how these houses are typically built, and what the permitted development rules would and wouldn't allow — so we could give straight answers early instead of discovering problems late. And the lessons we'd carry into the next one are the same ones that made this a happy home to work in: protect the family's daily life as if it were part of the spec, communicate more than you think you need to, and never treat a firm budget as a constraint to fight — treat it as the brief. Get those right, and a dark galley becomes the room the whole family gathers in.