SMA Design & Build Ltd

SMA Design & Build Ltd Family run business with over 30 years industry experience working in & around the London & Surrey areas.

Sleek grey cabinetry, warm copper pendants and a statement island, this is what a well-designed kitchen extension looks ...
24/08/2026

Sleek grey cabinetry, warm copper pendants and a statement island, this is what a well-designed kitchen extension looks like in real life.

Every detail matters, from the layout to the lighting to the finishes that tie it all together.

If your kitchen could use more space and better flow, this is the transformation to aim for.

Book your free survey and start planning yours.

The staircase is the decision that shapes your whole loft conversion.It affects headroom, fire safety, storage and how n...
21/08/2026

The staircase is the decision that shapes your whole loft conversion.

It affects headroom, fire safety, storage and how natural the new floor feels to use every day, not just how you get up there.

Positioning it over the existing stairs often works best, keeping circulation stacked and minimising lost bedroom space, but the right answer depends on your landing, roof pitch and structural walls.

We check stair layout early, alongside roof type, fire safety and Building Regulations, so the whole conversion works together.

Not sure what stair layout suits your home? Get in touch for a free consultation.

Your home has more potential than you think.A carefully planned extension can unlock the space you’ve been dreaming of, ...
19/08/2026

Your home has more potential than you think.

A carefully planned extension can unlock the space you’ve been dreaming of, more light, more room, more flow.

From concept to completion, HWP Design & Build brings it all together with one accountable team.

Ready to see what’s possible? Book your free survey today.

Planning permission doesn’t cover party wall matters. They’re a separate process, and leaving them too late can delay yo...
14/08/2026

Planning permission doesn’t cover party wall matters. They’re a separate process, and leaving them too late can delay your entire build.

Excavation near a boundary, steel beams into a shared wall or a chimney alteration can all trigger the need for notices, so it’s worth checking early, not once the contractor’s ready to start.

We help identify likely triggers, coordinate drawings and structural information, and plan construction sequencing around your neighbours from the outset.

Serving East Molesey, Esher, Thames Ditton, Kingston, Surbiton and the wider Elmbridge and Surrey area.

Planning a project near a shared boundary? Request party wall support today.

Does your loft conversion need planning permission?It’s not something to assume. The answer depends on your property typ...
12/08/2026

Does your loft conversion need planning permission?

It’s not something to assume. The answer depends on your property type, roof design, previous alterations and whether you’re in a conservation area.

A velux conversion is often lower impact, while a mansard involves more substantial roof changes and tends to be more planning sensitive, especially on period homes.

Even where permitted development applies, a lawful development certificate can give useful peace of mind for future buyers, lenders and solicitors.

Not sure which route applies to your home? Get in touch for a free consultation.

That underused garage could be your next favourite room.A home office, playroom, snug, gym or utility space, whatever yo...
10/08/2026

That underused garage could be your next favourite room.

A home office, playroom, snug, gym or utility space, whatever you need, converting a garage is often faster and less disruptive than a full extension.

We handle damp proofing, insulation, ventilation, fire safety and Building Regulations, so the finished room feels like a genuine part of the home, not a leftover garage.

Serving East Molesey, Walton-on-Thames, Weybridge, Esher, Surbiton, Kingston and the wider Elmbridge and Surrey area.

Thinking about converting your garage? Request your quotation today.

Is your hipped roof holding your loft back?A hip-to-gable conversion turns that sloping side into a vertical gable end, ...
07/08/2026

Is your hipped roof holding your loft back?

A hip-to-gable conversion turns that sloping side into a vertical gable end, unlocking more head height and floor space, ideal for semi-detached and detached homes.

Combine it with a rear dormer and you’ve got room for a proper bedroom suite, ensuite or home office, not just a cramped loft.

We handle roof structure, staircase position, insulation, fire safety and Building Regulations, with external materials matched carefully to the existing house.

Serving East Molesey, Esher, Thames Ditton, Kingston, Surbiton and the wider Elmbridge and Surrey area.

Thinking about a hip-to-gable conversion? Request your quotation today.

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Not sure a rear extension alone will solve your layout?A wrap-around extension combines rear and side space into one L-s...
05/08/2026

Not sure a rear extension alone will solve your layout?

A wrap-around extension combines rear and side space into one L-shaped addition, transforming a narrow kitchen and disconnected dining area into a genuine open-plan hub.

With over 30 years’ experience, a 10-year structural guarantee and fixed-fee quotations, we handle everything from planning and drainage to roof glazing and Building Regulations.

Serving East Molesey, Esher, Thames Ditton, Kingston, Surbiton and the wider Elmbridge and Surrey area.

Thinking about a wrap-around extension for your home? Request your quotation today.

Most building problems aren’t caused by one bad trade. They happen when sequencing, communication or decisions break dow...
03/08/2026

Most building problems aren’t caused by one bad trade. They happen when sequencing, communication or decisions break down.

Trades arriving too early, materials ordered too late, inspections missed before work’s covered up. Good project management is what stops that from happening.

We coordinate programmes, trades, suppliers and inspections from start to handover, keeping you informed every step of the way with one accountable team.

Serving East Molesey, Esher, Thames Ditton, Kingston, Surbiton and the wider Elmbridge and Surrey area.

Want your next project managed properly? Request project management support today.

One extension, two floors of family life sorted.This Weybridge double-storey extension gave the family a brighter kitche...
31/07/2026

One extension, two floors of family life sorted.

This Weybridge double-storey extension gave the family a brighter kitchen-diner downstairs and new bedroom space upstairs, all within a carefully proportioned rear footprint.

Roofline, privacy and neighbour amenity considered from day one, so the addition sits naturally with the original house.

Proof that solving two problems in one build beats extending twice.

Get a quote for your double-storey extension today.

Address

East Molesey

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