Green-belt property refurbishment · 2-bed to 4-bed under Permitted Development

A 2-bedroom property sitting on green-belt land in rural Stoke-on-Trent. From dead-end to high-end is the brief. From unmortgageable to unmistakable.

The owners had done the regulation homework before they came to HYPE. They knew Permitted Development could deliver close to a 50% volume uplift on a green-belt property: significantly more than the ~30% cap that full planning would have given them. That single piece of due diligence is what made this build possible.

Normally when we do a rip-out, you'll see the brickwork exposed. With this one, half the house and a chunk of the garden are missing: the sections that come off to make way for the side and rear extensions. Ready for the new builds to start.

The side extension and single-storey rear extension are beginning to take shape. Footings dug. Then the floor build-up: 150mm MOT layer, 25mm sand blinding, DPM, steel mesh, concrete.

Because of the large surface area, the concrete was pumped onto the site rather than wheelbarrowed. That saves time, saves money, and, more importantly when you've got a crew of trades to keep on programme, saves several visits to the chiropractor. Educational note on the concrete-pour technique is in the build-technique features below.

As the sun rises over the property, it's evident just how fortunate the owners will be to wake up to these breathtaking views of the Staffordshire countryside. In the meantime, the scaffolding is in place: take full advantage of the lofty position while it's up.

First-floor extension brickwork progressing. Cavity wall fully insulated as we go (educational feature on the 6-inch cavity is in the technique blocks below). Internal partitions setting out the new room layout.

The bifold doors are in place and the kitchen is partly installed. The huge open-plan layout downstairs starts to read as the volume the owners signed off, the relationship between the rear extension, the kitchen-diner, and the rural views outside is now visible.

Upstairs, the majority of the rooms now have plasterboards. The new windows are in place, and the view from the master bedroom is materially different to anything that was possible in the original 2-bed footprint.

Build complete. Two-storey side extension, single-storey rear extension, full refurbishment of the original 2-bed envelope, four finished bedrooms with en-suite to master, snug, office, large kitchen-diner, full underfloor heating downstairs, unvented hot water cylinder, fully-insulated 6-inch cavity to Part L, oak porch on the front elevation. Garden landscaped. Dead-end to high-end. Unmortgageable to unmistakable.

Dilapidated 2-bed on green-belt land to high-end 4-bed under Permitted Development. The single shot below is what the property looks like now. The build series on HypeTV walks the full progression for anyone going through a similar PD decision.

When you're installing underfloor heating, the subfloor construction is different from a standard concrete subfloor. With UFH, the concrete slab is BELOW the insulation. With a standard concrete floor, the slab is ABOVE the insulation. Get the order wrong and the heat goes down into the ground instead of up into the room.

This is the kind of detail that catches DIY-extension owners and inexperienced builders. The educational HypeTV video on this build covers it in full: link in the video block below.

If there's one thing we love, it's a bit of quality craftsmanship: and this is a thing of beauty. The property now has a stunning oak porch gracing the entrance to the home.

A hand-crafted oak porch is the kind of detail that lifts a high-end refurbishment from competent to memorable. It's the first thing visitors see and the last thing the owners look at when they leave the house. Worth the extra spend.

Three build-technique details worth pulling out from this project.

6-inch cavity wall, since 2022, Building Regs require new properties and new additions to insulate to a specific standard. The most cost-effective way to hit it on a build like this is a 6-inch cavity, fully filled. We use DriTherm; alternatives exist if they achieve the required U-value.

Concrete pump, on a slab pour with this much surface area, hiring a concrete pump rather than wheelbarrowing pays for itself in saved time, saved labour cost, and saved back injuries.

Spray plaster, applied across the entire property. Up to 5x faster than regular gypsum plastering (the application and drying time both compress). Dries white, which makes a great pre-finish under the decoration layer.