Question 1

How long does a home extension in Groningen take?

Accepted Answer

The timeline for a home extension in Groningen varies per project, but on average the construction itself takes 4 to 8 weeks. This depends on the scope, the type of foundation and the chosen finishing. Because our building contractor team combines construction, electrical and plumbing work, we avoid the delays that normally arise from waiting times between different contractors. Additionally, you should factor in preparation time for any required permits and structural drawings.

Question 2

How much does a house extension in Groningen cost?

Accepted Answer

The cost of a house extension in Groningen depends on several factors: the dimensions, the type of foundation, the chosen materials and the desired finishing. Every home and situation is different, making it difficult to provide a standard price indication. As your renovation contractor in Groningen, VerbouwGroep Noord always provides a clear, detailed quote upfront with fixed price agreements. So you know exactly where you stand. No hidden costs or unexpected additional charges.

Question 3

Do I need a permit for a home extension in Groningen?

Accepted Answer

In many cases an environmental permit (omgevingsvergunning) is required for a home extension in Groningen, but not always. Small extensions at the rear of your home sometimes fall under permit-free building. This depends on the dimensions, height and position relative to the zoning plan. As an expat-friendly renovation contractor, we are happy to help you determine whether a permit is needed and can handle the complete application process for you. Niels is an English-speaking contractor who will guide you through the Dutch permit system.

Question 4

Do you handle the foundation as well?

Accepted Answer

Yes, the foundation is an integral part of our extension process. Depending on the soil conditions and the weight of the extension, we choose driven piles, screw piles or a strip foundation. We conduct a soil survey beforehand so the foundation perfectly matches the situation. Everything is carried out by our own team, from groundwork to pouring the concrete floor.

Question 5

Do you also handle the electrical and plumbing work?

Accepted Answer

Absolutely. This is exactly what sets us apart: construction, electrical and plumbing all fall under one roof. We install new electrical circuits, handle the water and drainage pipes and install heating and ventilation. All by our own dedicated team and in compliance with applicable standards such as NEN 1010. You do not need to hire separate installers.

Question 6

What types of extensions are possible?

Accepted Answer

We build various types of extensions and additions. Think of a living room extension, an extra bedroom, a larger kitchen or a combination thereof. Conservatory-style extensions with lots of glass, flat roofs or extensions with a pitched roof are all possible. During the initial consultation we discuss which solution best suits your home and wishes.

Question 7

Can I stay in my home during construction?

Accepted Answer

In most cases you can continue living in your home during the extension. The work mostly takes place on the outside. When the breakthrough to the existing home is made, there may be temporarily more disruption. We plan this so that inconvenience is kept to a minimum and coordinate the schedule with you in advance.

Question 8

Which areas near Groningen do you serve for home extensions?

Accepted Answer

As a building contractor in Groningen, VerbouwGroep Noord builds home extensions and additions throughout the province of Groningen, Northern Drenthe and Eastern Friesland. From Groningen city to Assen, from Haren to Delfzijl, and from Hoogezand to Winschoten. Feel free to contact us for a no-obligation consultation. We are happy to visit you to explore the possibilities. Niels is an English-speaking contractor experienced in working with expats and international clients.

Question 9

Can you also build a loft conversion or basement?

Accepted Answer

Yes, besides ground-floor extensions we also carry out loft conversions and basement construction. Loft conversions are a great way to add an extra bedroom or office, especially in older homes in Groningen neighbourhoods like Oosterpoort or Helpman. Basements are less common in the Groningen area due to the high water table, but depending on the soil conditions it can still be an option. We assess the feasibility during the first visit.

Question 10

Can you help with the architectural drawings and structural calculations?

Accepted Answer

Yes, we work closely with trusted architects and structural engineers in Groningen. We can arrange the full preparation for you, from initial design sketches to the final construction drawings and structural calculations needed for the permit application. This means you only have one point of contact for the entire project.

Question 11

What happens if the extension affects my neighbours?

Accepted Answer

When building an extension in Groningen, the municipality often requires that your neighbours are informed, especially if the extension is close to the property boundary. In some cases their formal consent is needed as part of the permit process. We advise you on this and can help manage the communication with your neighbours if needed.

Question 12

Do I need a permit for an extension in the Netherlands?

Accepted Answer

Often not, but the rules are precise. In the rear garden zone you may build permit-free under conditions. Broadly, that covers an extension up to four metres deep measured from the original main building, a height that ties in with the first floor level, and a maximum share of the rear garden built on. Step outside that, or if the building is listed, and an omgevingsvergunning is required. We check your specific address before anything is ordered.

Question 13

What does an extension cost in Groningen?

Accepted Answer

For a 20 m² extension we budget € 28,000 to € 36,000 in the basic specification, € 36,000 to € 48,000 mid-range and € 48,000 to € 64,000 for a high-end finish. An aluminium sliding door adds € 3,200 to € 5,500, a rooflight € 1,800 to € 3,200.

Question 14

Does an extension need pile foundations in Groningen?

Accepted Answer

In much of Groningen, yes. The ground here is often clay and peat, so an extension on a shallow foundation settles differently from the existing house over time, which cracks the joint between them. Pile foundations cost € 2,500 to € 5,000. Whether you need them follows from the soil data and your existing foundation.

Question 15

What is timber-frame construction and why do you use it?

Accepted Answer

In timber-frame construction the shell is a wooden frame with insulation between the studs and board material on both sides. It is light, which helps on soft ground, it insulates better than masonry at the same wall thickness, and it goes up quickly because there is little drying time. The Barkmolenstraat extension was built this way; the full build sequence is on our projects page.

Question 16

Can a kitchen or bathroom go in the extension?

Accepted Answer

Yes, and it is a common choice. A kitchen in the extension adds € 1,200 to € 2,000 for the services. What matters is that water, waste and electrics are designed in during the shell stage; chasing pipes into a finished floor afterwards wastes the work.

Question 17

Can an extension be built during the Dutch winter?

Accepted Answer

Yes. Only concrete pouring and masonry pause during a hard frost, because mortar does not cure below zero. Timber-frame construction is far less affected, and once the roof is on and the facade is wrapped watertight, interior work carries on. We plan the concrete stage outside the frost period where possible.

Extension builder in Groningen.

Your renovation contractor in Groningen,
from start to finish.

How we build your home extension in Groningen

Preparation & foundation

Construction & shell

Mechanical & electrical

Finishing & handover

Extension Barkmolenstraat, Groningen

Recent home extension projects in Groningen

Full renovation + extension, Barkmolenstraat

Full renovation, Haren

Full renovation, Zandsteenlaan

Full renovation, Allermanstraat

What our clients say

From first meeting
to your completed home addition

Introduction

Tailored quote

Execution

Handover

Everything about a home extension in Groningen

Home extension in Groningen: permits, costs and timeline

Do I need a permit to renovate in the Netherlands?

Dutch house types explained: what you are buying and what it will need

Frequently asked questions about
home extensions in Groningen

Ready for a home extension in Groningen?