Calculate easily how much does it cost to build your new house

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How New Construction Calculator works


Get immediately how much it would cost to build a house accurately and reliably Its very easy and fast!

Easy: The New Construction calculator is very simple to use because you only have to enter the basic data of the house you want to build: surface of the plot and the house and how you want to distribute each floor.

Reliable: We have been polishing and tuning our algorithm since 2012. In all this time we have performed more than 200,000 calculations. In addition, it is the same algorithm that our professionals use to make their budgets, so you can trust!

Precise: Our algorithm is capable of calculating the concrete measurements of each of the necessary work items, that is, it does not calculate approximate costs per square meter of construction but rather calculates the quantities accurately and applies market prices that our professionals in your Zone used daily.

Inmediate: With our generator, you will immediately obtain the estimated price to build your single-family house. Without cheating and without having to invest time in finding a professional, staying with him and waiting for him to send you the budget (which is a waste of time for both of you). All you have to do is register on our portal so you can access your calculation whenever you want or perform all the calculations you want, because it is also completely free.

Optional: Get a budget breakdown in PDF signed and sealed

Once you have completed the calculation of your House construction, you will have the option of buying two documents that can be used to request financing from your bank or simply to have a more precise idea of ​​the costs breakdown, in a transparent and reliable way.

Reform Report: A simple document with a cost breakdown by main parts. Some banks accept it.

Breakdown Budget: A budget signed and sealed by the PlanReforma, with a breakdown of labor prices, product options and measurements.

Opcional: PRojectDIY

The PRojectDIY empowers you and allows you to have control of the construction of your house, choose materials, and obtain, on the one hand, an interactive budget, with which you can "play" to choose materials, activate / deactivate parts, while recalculating the final amount. In addition, you can download all the versions you want in PDF.

or know the rest of the services offered by Plan Reforma

New Construction calculator

Houses building prices Guide


If you are looking for an orientation on what it can cost you to build a house you can consult this price guide that we have extracted from the more than 200,000 calculations that, since 2012, we have made. However, remember that you can always calculate precisely the specific price of YOUR home, in less than 1 minute, and for free, accurate and easy:

The average price of building a house in 2021 is 247.674 €

The average price is for the construction of a house with an average area of ​​204m2, on a plot of 36x27m2, with an average of 1-2 floors; one third of these homes have a basement and / or pool.


Average price per provinces to build a house in 2021:

The price of labor usually varies from one province to another, so for the same work it is normal for the construction price to be different from one community to another. We leave here the list of average prices of what it costs to build a single-family home in each province:

Province New construction average price
Bizkaia344.098 €
Ourense329.188 €
Jaen304.431 €
Guipuzcoa282.749 €
Madrid274.163 €
Alicante272.372 €
Cantabria270.854 €
Lugo270.614 €
Alava270.369 €
Lleida262.248 €
Pontevedra259.518 €
La Coruna258.592 €
Islas Baleares257.364 €
Zaragoza256.629 €
Barcelona255.748 €
Navarra249.874 €
Las Palmas248.149 €
Girona246.778 €
Asturias246.773 €
Ciudad Real245.041 €
Toledo244.109 €
Malaga242.581 €
Badajoz241.749 €
Cordoba241.334 €
Segovia240.595 €
Leon239.406 €
Province New construction average price
Castellon239.106 €
Granada238.139 €
Albacete236.201 €
Murcia235.143 €
Almeria234.522 €
Tarragona232.605 €
Cadiz230.685 €
Valladolid230.545 €
Sevilla229.842 €
Ceuta229.356 €
Caceres227.894 €
Huelva227.193 €
Valencia227.068 €
Santa Cruz de Tenerife224.249 €
Avila223.779 €
Guadalajara219.989 €
Huesca218.790 €
Cuenca214.649 €
La Rioja213.961 €
Teruel210.465 €
Zamora206.295 €
Melilla205.891 €
Palencia202.433 €
Salamanca202.207 €
Burgos199.319 €
Soria177.963 €
Author: Plan Reforma
Average price of building a house in 2021 by province

Evolution of the average price of construction houses by years

This is the price table that reflects the evolution of the average expenditure in the construction of a house over the last 5 years. It can be seen that there was a drop in prices in 2017 and that little by little they have been recovering.

Year New construction average price Variation
2015261.409 €
2016247.203 €-5,43 %
2017185.378 €-25,01 %
2018216.614 €16,85 %
2019239.424 €10,53 %
2020250.042 €4,25 %
2021247.674 €-0,96 %
Author: Plan Reforma
Evolution of the average price of building a house by years

Tips for your new house


If you are thinking of building a house, this is a summary of the best tips we have in the Plan Reform Blog. Let's start reading!

First: Choose the terrain well

The first thing you will have to find is the land where you want to build. At a constructive level, although "everything can be done" the more flat the land, the easier it will be to design the project, and the more economical the excavation will come out. The shape of the land, when more rectangular or square, also helps to optimize the square footage of the house. Finally, take into account both orientation and sunning, that is, if there is a mountain that can take your sun off in winter, when the shadows are longer or some other dwelling. In fact it is always more advisable to buy the land in winter, in order to see the worst of times.It is also important to know the prevailing winds. A house that constantly has a wind flow (we are not referring to a pleasant breeze) can be a comfort problem in the future.


Project of an architect

Once you have bought the land, the following is to get in touch with an architect so that he can do the project to build your future new home. It is important that you go to see it with the clear ideas of what your needs are, but with an open mind to proposals of both design and distribution: Many times you think you are so clear what you want you to miss more interesting options than you You had thought. After all, they are architects for something...

This phase is long and requires several tests, so the better you can specify your needs, the better the architect can do his job. It is important to invest time in the project phase, before launching to start the works, because the more defined this whole, the budget can be more accurate, and less work delays will appear due to project modifications, nor extra costs during these.


Work license

Once you have defined the project, you just have to take the project to the town hall to request the corresponding works license. The architect himself usually helps you with this procedure. The time and costs of the license vary from one municipality to another.


Search construction companies

Within the architect's project are some measurements of the work. Ideally, give the same project (plans + measurements) to several builders so that they all budget based on the same. With STIMAT, for example, the architect can prepare the budget and send it to the builders so they can pass a price. So you can review it together (if you have hired that part to the architect) and decide which construction company will do the work for you.


Sign the contract and budget

In a reform work, a contract is not usually signed, but in a larger work, such as the construction of a house, it is more advisable to sign it so that there are no scares. It is also highly recommended to pay for certification. With STIMATpay, you can automate the management of payments to your contractor safely.


Duration of works to build a house

The approximate duration of building a house is usually around 12-18 months, between the beginning of the excavations and the final review of the works. But think that before you will have to ask for the works license and before that, do the project, so you should count 2 years, from the beginning of the planning of your work to build your house.


See other tips for your build your new house

How much will cost your dreams house

How much costs to build a house

Build a house, How much is it?


Services to build a house


Contact professionals:

Whether you need an architect to design your house, an interior designer to decorate it or a construction company to build, get up to 4 contacts from professionals in your area who will call you to visit and give you your budget.


Manage the finishes of your new home with STIMAT:

Your professional can attach several options of finishes and you can play with your interactive budget, to save both of you a lot of time. Remember that the better you have defined all the finishes before starting the works, the less deviations from the budget there may be during these. It will also reduce the likelihood that the duration of the construction of your house will increase.


Manage payments safely:

Once the work has been contracted - either with a professional of Plan Reforma or NO - you can hire STIMATpay to safely manage the construction payments of your house: You will not pay anything in advance to the professional and you will pay, for certifications, once the Work is done. It is the safest and most efficient way to manage your work!

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