Contractor Amsterdam
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Zwanenburgerdijk 279 C,
1161 NL Zwanenburg -
06 4012 5121 - info@aannemer-amsterdam.nl
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Construction Amsterdam
When you want more living space, an extension may be a good option. By adding an extension, a dormer or dormer window you increase your living space considerably, which increases the possibilities in your own home and avoids the need to move. Useful in a time when housing is not for the taking.
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The building expert in Amsterdam
Aannemer Amsterdam is a specialist when it comes to installing an extension, outbuilding, superstructure or dormer. There are numerous possibilities when it comes to an extension. Numerous styles, shapes and sizes. So there is always an extension that suits your home, style and living requirements. Want to know what kind of extension can enrich your home? Feel free to contact us to discuss the possibilities.
Building costs in Amsterdam
Of course, you also want to know what an addition will cost you. If we assume a fairly standard house is about 5 meters wide. With an extension of 3 meters long, the living room becomes considerably larger. On average an extension of 3 by 5 meters costs between € 16,000 and € 25,000. This price depends on the way the extension is realized. You can opt for a custom-made extension but a prefabricated extension is also one of the options. See below the average prices in a handy overview.
| Construction type | Prefab construction costs | Custom construction costs |
|---|---|---|
| Standard | € 16.000 – € 20.000 | € 19.000 – € 23.000 |
| Classic / modern | € 18.000 – € 22.000 | € 21.000 – € 25.000 |
Free quote?
Custom or prefabricated construction in Amsterdam?
You want an addition but are not sure the best way to enlarge your home? Below you will find the different options.
Prefabricated construction
A prefabricated addition is a kind of ready-made kit that is built in a factory or workshop. After this, it only needs to be put together on location. This has the advantage that a prefabricated building can be placed very quickly, even within 1 day! It also means there is little inconvenience around your home. A disadvantage of a prefabricated building is that it cannot be completely customized. Fortunately, there are different types to choose from. Do you really want an extension completely to your liking? Then you might want to choose a custom-built extension.
Custom construction
A custom addition, as the name implies, is custom built to your home on site. This causes a little more inconvenience around your home and building a custom addition also takes a little longer. The advantage is that the extension can be built completely according to your wishes. Often a custom-built extension is slightly more expensive because of this.
Wooden extension
A wooden addition can also be beautiful, create a nice country look with it. Besides the beautiful appearance, a wooden extension is also slightly cheaper. Because a wooden extension is less heavy, the foundation does not need to be as strong. A wooden extension can be prefabricated or custom made. Here again, prefabricated is slightly cheaper but if you have specific needs then let the wooden extension be custom made.
Bay window
A bay window gives your home a beautiful 1930s-like appearance. A bay window is a closed extension of the facade of your home. Usually the bay window protrudes 1 to 1.5 meters. This allows more light to come in. You can have the bay window placed at the front or rear of your home. Usually you need to apply for a permit for a bay window at the front.
Different types of construction in Amsterdam
You know you want to enlarge your home but is this best done by an addition, buildup, or dormer? We will try to give you the best possible picture of what you will achieve with each component.
Attachment
An extension makes your first floor significantly larger. This not only allows you to create a nice large sitting area, have you ever thought that with an extension of a few meters it is possible to change the entire layout. For example, place a new kitchen with an island in the extension or create a study or playroom on the first floor by moving a wall. By placing French doors in the extension, you can connect the outside with the inside. The possibilities are truly endless. One thing is certain with an extension you will increase your living pleasure.
Construction
If you are looking for more space upstairs, a roof structure may be an option. With a roof structure, you enlarge the top of your home. Sometimes this makes it possible to create an extra floor on your home, useful if you now have too few bedrooms, want to create an extra work or laundry room or if you want to move the bathroom to a larger space. A roof structure can be placed on a flat roof but also on a sloping roof. Because a roof structure enlarges your home, it always increases the value of your home. A good option for more space that you usually also earn back.
Dormer
Is a roof structure a bit too much for you, but you are still looking for more light and space on the upper floor, then a dormer window may be something for you. By adding a dormer window to your sloping roof you can create a full-fledged bedroom, work or hobby room. A dormer is available in many sizes, styles and types there is always one that fits your home and needs.
How an addition comes about
Many people remodel only once or twice in their lifetime. At this point, you probably have no idea how to do it and what to expect. Difficult to make so many choices without too much knowledge. To give you an idea of what to expect, we take you step by step through the process of building an extension.
1. The preparation
You probably have a picture in your head of what the addition should look like. Think in as much detail as possible. What should the size of the extension be, what material should it be made of, should it be made to measure or prefabricated, is there enough light or do you need a skylight, what kind of window frames should be installed? Make a sketch or drawing of this and a description. Discuss with your immediate neighbors what they think about your addition, as they may object. Contact your municipality to ask what the rules are regarding an extension.
2. Engage architect or not?
Do you have really specific requirements or can’t manage to make a drawing? Then you can choose to hire an architect. An architect can give you ideas that you had not yet thought of or can come up with a solution for specific problems. If you manage to make a drawing yourself, we can take the measurements on the basis of the drawing.
3. Get a quote
Ask us for a free quote. We will come and see if your wishes are feasible, discuss with you which materials you want to use and measure everything in order to offer you a competitive quote. We can also tell you right away how long the construction will take and what you can expect.
4. Permit application
If you need a permit, it is smart to apply for it early. Sometimes applying for a permit can take up to three months. Sometimes you may also need a demolition and environmental permit if you need to dispose of asbestos-containing material, for example. Applying for a permit is not always necessary; often you can build freely up to certain dimensions. Check with your municipality to what size and height you are free to build.
5. Need funding?
Now that you know what the remodel will cost you, you can see if you can pay for it out of your own savings or maybe you need to find another way to finance it. If you need financing you may be able to apply for a building deposit on your mortgage or increase your mortgage. Contact a financial or mortgage advisor or your bank. There are often several options.
6. Contract with your contractor
Once the financing is complete, you can enter into the contract with the contractor. We put important things on paper so there can be no misunderstandings during construction. This contract will also include the agreed amount.
7. Contractor's schedule
Now that the contract has been signed we will start ordering the necessary building materials. We now know how long it will take for these to be delivered. Now we can agree on a date to start construction and we will share with you the schedule. This way you know how long the construction will take and you can, for example, arrange for a container to store your belongings.
8. Construction begins
Once all the furniture is in a container and the garden has been cleared, the construction can begin. Sometimes construction can be finished within a week if you have chosen a prefabricated extension, for example. Custom construction can take longer but will take a maximum of about 6 weeks.
9. The addition is delivered
When the addition is finished, it is officially delivered. Our contractor walks with you through and around the new building and you check together whether everything is to your satisfaction. Is this not the case or do you still see some small points of improvement then you can indicate this and we will make sure that these are still in order. Of course it is possible that after a week something comes up that needs to be looked at. No worries! Even then we will come back to fix it. We give a guarantee on every construction or renovation!
Have window frames installed in addition
If you build an extension, of course window frames must be installed. But what kind of window frames do you choose? There is a choice between wood, plastic and aluminum. If you go for wooden frames you can choose between hardwood and softwood frames. Hardwood is more expensive than softwood but lasts 40 to 75 years. Softwood lasts only 15 to 25 years. The disadvantage of wooden window frames is that you need to maintain them well, every 5 to 10 years the window frames need to be repainted. Plastic is more expensive than wood but will last 50 years and is very easy to maintain. Plastic is available in different appearance characteristics so you can choose smooth plastic but also plastic with a wood grain in it. These wood-look plastic window frames are now so beautiful that they are almost indistinguishable from real wood. In addition, you can choose aluminum. Aluminum provides a tighter look aluminum window frames require little or no maintenance and have a long life of 40 years on average. Below you will find a handy table where you can compare the differences between the window frames.
| Feature | Plastic window frames | Wooden window frames | Aluminium window frames |
|---|---|---|---|
| Price-quality ratio | +++ | + | ++ |
| Insulation | ++ | +++ | ++ |
| Maintenance | ++ | + | +++ |
| Safety (burglary resistance) | ++ | +++ | +++ |
| Style and color (the type of frame has a versatile design) | + | ++ | +++ |
| Environmentally friendly | ++ | +++ | ++ |
| Lifespan | +++ Average 50 years |
++ Average 50 years |
+++ Average 40 years |
Roofing
If you have no preference for a type of roofing we will almost always install a bitumen roof on you. This is because bitumen roofing is fairly cheap at around €45 per m2. The lifespan of bitumen is about 25 years. If you prefer a roofing material that lasts longer, you can choose EPDM, which has a lifespan of about 40 years. EPDM is a bit more expensive to purchase, about €60 to €80 per m2.
Do you have a flat roof covered with EPDM or bitumen and does this roof have a pitch no greater than 45 degrees? Then you can also choose to turn it into a green roof. Mosses, ornamental grasses or succulents can be placed on it. The advantage of a green roof is that it absorbs rainwater, absorbs CO2, reduces particulates and is good for biodiversity.
Addition; additional options
If you’re having an addition installed, it’s smart to think carefully about any additional options. What do you think the perfect addition should look like? Would you like to install a skylight for extra light? And should it be manually or electrically operated? You may want to install a screen in the opening skylight. Also think carefully about what the inside of the building should look like. Do you want the walls plastered? Should there be heating in the annex? And should this be floor heating or a radiator? If you know what you want we can give you a good and competitive quote. Additional options simply cost more money but you will probably only renovate once and it is always cheaper to do everything right the first time. At Aannemer Amsterdam you do not have to pay the high price, we will always offer you a competitive quote!
Licensed
In many cases an extension is exempt from the permit requirement if it is not deeper than 4 meters or higher than 5 meters. If you want to be sure this is the case in your municipality, use the permit check of the Ministry of Infrastructure and Environment. You can always contact your municipality to find out how it is regulated in your municipality. If you want to build an extension to the front or side of your house, you almost always need a permit.
Also, always check if there are any other items for which you need a permit. This may be the case, for example, if the demolition involves removing asbestos or if you want to dispose of more than 10 m3 of demolition waste. You may also need to apply for a permit to place a container for demolition waste. Do you live by the water? Then check with the Water Board it may be possible that permission is needed from the Water Board for an extension.
Requesting a quote for an addition
Is an extension also a great addition to your home? Then contact the construction specialist in Amsterdam and surroundings! At Aannemer Amsterdam we always listen carefully to your wishes and advise you if desired so that together we come to the perfect extension for your home! In addition, we will always offer you a competitive quote, in most cases we are a lot cheaper than other contractors. Quality is what we stand for, but it does not have to cost the earth!
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