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A home extension built to fit your house

Home extensions across Brabant, in English.

More living space without moving. From the foundation to the last skirting board, your extension is built by one team. Building, electrics and installation in our own hands, the permit check done for you, and a price agreed in writing before we start.

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22 years in the trade
250+ projects delivered
Finished home extension on a family house built by Boers & Breuer Totaalbouw
CO-keurCO-keur certified
STEKSTEK registered
NEN 1010NEN 1010 electrical
GPIGPI certified
VCAVCA safety certified
CO-keurCO-keur certified
STEKSTEK registered
NEN 1010NEN 1010 electrical
GPIGPI certified
VCAVCA safety certified
CO-keurCO-keur certified
STEKSTEK registered
NEN 1010NEN 1010 electrical
GPIGPI certified
VCAVCA safety certified

More space,
without moving house

Buying a bigger house in Brabant means transfer tax, a notary, a broker and months of searching, in a market where good family homes around Eindhoven go fast. An extension at the back usually gets you the space you need for a fraction of that, in the street you already chose.

A typical extension adds 10 to 26 square metres to the ground floor: an open kitchen with sliding doors to the garden, a bigger living room, a study or a bedroom on the ground floor. At Boers & Breuer Totaalbouw we build it from the foundation up, including the steel beam where your back wall opens, the electrics, the plumbing and the complete finish. Joeri Boers is your contact throughout, in English.

We build extensions in Eindhoven, Veldhoven, Den Bosch, Tilburg, Breda and Helmond, with one large project at a time so yours gets our full attention.

Home extension under construction with new walls and roof
One point of contact Joeri guides your renovation from the first visit to the handover.
Transparent pricing A clear quote up front, the price agreed in writing. No surprises afterwards.
Clear planning One project at a time, tightly planned. Handover date agreed before we start.
Building, electrics & installation Every trade under one roof. No loose subcontractors.

How we build your extension

Every extension goes through four clear phases, from the first visit to the handover.

1

Visit & design

Joeri visits, measures the plot and the back of the house and talks through what you want to use the space for. Together we decide on size, glass, roof and layout.

2

Permit check & quote

We check your plan against the permit-free rules and the local zoning plan. If a permit is needed, we prepare and submit the application. You get an itemised quote in English.

3

Foundation & structure

Foundation at frost-free depth, the floor, walls, roof, frames and insulation. Where the back wall opens, a steel beam goes in with a structural calculation.

4

Finishing & handover

Electrics, pipework, underfloor heating if you want it, plastering, floor and paintwork. We walk through it together, and only when you are happy do we close the project.

What our clients say

Most of our reviews are written in Dutch. Your browser can translate them in one click.

Which extension suits your house?

Four common types. The right one depends on your plot, your house and what the room is for.

Brick extension

An extension in brick that matches the existing facade. Fully insulated and built to look like it was always there. Ideal for a bigger living room, a kitchen or a study.

Glass extension or garden room

Lots of glass, slim aluminium frames and sliding doors to the garden. Beautiful light, but it needs solar-control glass or shading, or it becomes too hot in summer.

Extension with a floor on top

Living space downstairs and a bedroom or bathroom above. It needs a heavier foundation and structure, and almost always a permit.

Small rear extension

Two to two and a half metres at the back, often enough to make a cramped kitchen work. In many cases permit-free and done in five to eight weeks.

What does a home extension cost?

Guide prices for a complete extension: foundation, structure, roof, frames, insulation, electrics, plumbing and interior finish. So up to the last skirting board, not just the shell. Roughly €2,000 to €3,200 per square metre, depending on the finish and the amount of glass.

compact

Extension up to 2.5 metres deep

About 10 to 14 m² extra at the back. Enough for a bigger living room or a dining area, usually permit-free.

Fully finished €28,000 to €48,000
most popular

Extension 3 to 4 metres deep

18 to 26 m² extra. The kitchen often moves into the new space and the old kitchen becomes living room.

Fully finished €48,000 to €85,000
light

Glass extension or garden room

Lots of glass, a slim structure and sliding doors. Needs extra thought about shading and the insulation value of the glass.

Fully finished €35,000 to €70,000
two storeys

Extension with a floor on top

Living space below, a bedroom or bathroom above. Heavier foundation, and almost always a permit.

Fully finished €85,000 to €140,000
Up to 2.5 m 3 to 4 m Glass extension With a floor on top
Guide price €28,000 to €48,000 €48,000 to €85,000 €35,000 to €70,000 €85,000 to €140,000
Extra floor area 10 to 14 m² 18 to 26 m² 12 to 22 m² 2 x 18 to 26 m²
Duration 5 to 8 weeks 8 to 12 weeks 6 to 10 weeks 14 to 20 weeks
Foundation Strip foundation or slab Strip foundation or slab Strip foundation or slab Heavier, sometimes on piles
Permit Often permit-free Always check above 4 m Depends on depth Almost always needed
Roof Flat roof with EPDM Flat roof, sometimes a roof light Glass roof or flat roof Flat or pitched, joined to the main roof

Why the foundation and joint come first

Two things decide whether you are still happy with an extension ten years from now: the foundation and the connection to your existing house. A new foundation settles differently from one that has been there for fifty years, so without the right detail you get a crack exactly on the joint. And where the old back wall comes out, the weight of the floor above has to go into a steel beam. Those are the two points we calculate before anyone picks up a shovel.

  • Foundation depth set for your plot, frost-free at a minimum of 80 cm
  • An expansion joint between old and new brickwork, so settlement does not become a crack
  • Steel beam with a structural calculation where the back wall opens
  • Insulation running continuously from floor to wall to roof, without a cold bridge
  • Rainwater and drainage connected to the existing system, with the fall checked
  • Floor level equal to your existing floor, so there is no step

Permits and rules for your extension

The short version of what applies, and what we check for your address.

Permit-free up to 4 metres

At the back of the house you can often build up to 4 metres deep without a permit, within limits on height and on how much of your back garden is built on. A corner house, a front or side extension, or a listed building changes that. We check it before the drawing is final.

The zoning plan still counts

Permit-free under national rules does not mean anything goes. The municipal plan (omgevingsplan) and your neighbours' rights still apply, for example around the distance to the boundary. We look at the plan for your plot in Eindhoven, Veldhoven or wherever you live.

Tell your neighbours early

Building work in a Dutch terrace is close to the neighbours. We always recommend telling them before we start, and we agree times for noisy work and deliveries. It prevents most complaints before they happen.

Where an extension goes wrong

Four mistakes we fix more often than we would like, and all of them can be prevented up front.

1

The crack on the joint between old and new

A new foundation settles differently from an old one. Without an expansion joint, a crack appears exactly where the extension meets the house, outside in the brickwork and inside in the plaster. It costs almost nothing to prevent and thousands to repair.

2

A cold bridge at the connection

The extension is well insulated, but where it meets the old wall the insulation stops. That is where condensation and mould appear in the corners. Insulation has to run without a break from floor to wall to roof.

3

A glass extension you cannot use in summer

Lots of south-facing glass without solar-control glass or outside shading gives you a room you avoid from May to September. And a glass roof needs laminated safety glass. Plan it up front, because adding shading later costs more and rarely looks good.

4

Building half a metre too deep

Permit-free building has hard limits on depth, height and distance to the boundary. Half a metre too much means a permit procedure you did not plan for, or an enforcement letter from the municipality. We check it for your address first.

Extensions across Brabant

Plot sizes, house types and municipal rules differ per city. This is what we come across.

Eindhoven

1930s houses in Stratum and Gestel with an old rear annex that we replace with a proper, insulated extension, and post-war terraces in Woensel with deep gardens. More about Eindhoven.

Veldhoven

Family homes from the 1970s and 1980s in areas like Zonderwijk and Cobbeek, and newer houses in Zilverackers whose owners want a bigger kitchen after a few years. More about Veldhoven.

Den Bosch

Townhouses in De Muntel and Het Zand with a small back yard, and family homes in Rosmalen and De Groote Wielen with room at the back. More about Den Bosch.

Tilburg

Narrow, deep 1930s houses where the old annex comes off and a wider one goes on, and 1980s homes in the Reeshof. More about Tilburg.

Breda

Larger plots in Ginneken and Princenhage where a glass extension works well, and terraced houses in the Haagse Beemden. More about Breda.

Helmond

Newer family homes in Brandevoort and Dierdonk, and older houses in Mierlo-Hout and Stiphout. More about Helmond.

Frequently asked questions about home extension

Answers to the questions we are asked most, in plain English.

Roughly €2,000 to €3,200 per square metre for a complete, finished extension. An extension up to 2.5 metres deep, about 10 to 14 m², costs €28,000 to €48,000. One of 3 to 4 metres deep, 18 to 26 m², runs from €48,000 to €85,000. A glass extension or garden room is €35,000 to €70,000, and an extension with a floor on top €85,000 to €140,000. Foundation, structure, roof, frames, insulation, electrics, plumbing and finishing are included.
Often not, if it is at the back, up to 4 metres deep and within the height limits, and enough of your back garden stays unbuilt. You do need one for larger extensions, extensions at the front or side, or in a listed building or protected townscape. We check this for your address and handle the application if needed.
A small extension takes 5 to 8 weeks, a 3 to 4 metre extension 8 to 12 weeks, an extension with a floor on top 14 to 20 weeks. If a permit is needed, add the municipality's decision time, usually 8 weeks.
Yes, in almost all cases. Most of the work happens outside. The only disruptive moment is when we open the back wall to connect the extension, and we plan that as short as possible and tell you when it is coming.
In Dutch, an aanbouw is a new room added to the house with its own foundation, roof and frames, and an uitbouw is usually a smaller extension of an existing room, like making the kitchen deeper. In English both are simply a home extension. We build both.
Almost always, because that wall carries the floor above and often part of the roof. A steel beam goes in with a structural calculation and is boxed in fire-safely. How wide you want the opening decides the profile and therefore the price.
It is one of the most popular layouts. The kitchen moves into the new space and the old kitchen becomes living or dining room. We lay water, drainage and electrics in the new floor before it is closed. The limit is the fall of the drain towards the existing soil pipe, which we measure at the visit.
Usually a flat roof with EPDM laid in one piece, with enough fall towards the outlet, an emergency overflow and a neat roof edge. For more daylight we add a roof light or a large skylight.
Yes, and building an extension is the right moment because the floor is open anyway. We lay the pipes in the new screed with insulation underneath. We also check whether your boiler or heat pump has enough capacity for the extra room.
Always. Depending on the soil, a concrete strip foundation or a slab, and on soft ground sometimes piles. Most of Brabant is sandy, which usually allows a shallow foundation, but we check it for your plot before we price it.
Yes, if the foundation and structure are designed for it. If you already know you might want a floor on top in a few years, tell us now. Adjusting the foundation later is much more expensive.
We build extensions across Noord-Brabant, including Eindhoven, Veldhoven, Best, Son en Breugel, Nuenen, Waalre, Helmond, Den Bosch, Tilburg and Breda, from our base in Waalwijk.

Good to know about a home extension

An extension is the only thing you can do to a house that actually adds square metres downstairs. Count on roughly €2,000 to €3,200 per square metre for a finished extension, depending on the finish and the amount of glass. A 2.5 metre extension gives you 10 to 14 m², a 3 to 4 metre extension 18 to 26 m². That is often the difference between a cramped living room and a ground floor that finally works.

Technically it comes down to two things: a frost-free foundation with an expansion joint where old meets new, and a steel beam with a calculation where the back wall opens. Get those right and the rest is craftsmanship: continuous insulation, a floor level without a step, and rainwater and drainage properly connected.

We build extensions for English-speaking clients in Eindhoven, Veldhoven, Best, Nuenen, Waalre, Helmond, Den Bosch, Tilburg and Breda. Not sure whether you need an extension, a dormer or a roof extension? Our guide dormer, roof extension or home extension compares the three.

Ready for your extension?

Book a no-obligation visit. Joeri comes by, looks at your house and plot and tells you honestly what fits, what it costs and whether you need a permit. In English, without a sales pitch.

✓ Joeri contacts you personally to talk through your plans ✓ A no-obligation visit at your home ✓ Honest advice, in English, no sales talk