5 websites to assess the value of a house that you are going to buy or sell

5 websites to assess the value of a house that you are going to buy or sell

If you are looking for a house or if you have already chosen one, at some point you have wondered where you can find an objective valuation criterion and the most rigorous possible so that your offer is truly competitive in the market. On the contrary, if you are looking to buy a property, it is important that you have a good knowledge of the prices of homes in the area.

For this, there are companies that offer the appraisal service in person, but also online, which for many is a great convenience. These online tools will help you discover how much a home can be worth based on similar ones in the same area, and decide if it is convenient for you to sell or buy (depending on each case) based on the price and its real value .

In addition, in many cases you can also extract external information related to the home . For example, know the services that are close to the property. In this way, you will be able to better guide yourself on the added value they bring and not have to regret your decision in the future.

Next, we are going to review some of the most complete appraisal web tools, similar to the one used by the great professional agents in the real estate sector,  to help you in your real estate purchase or sale project

housing price

Housing price

We start with the price-housing platform, where they have developed an appraisal application certified by the Faculty of Mathematical Sciences of the Complutense University of Madrid. For a decade they have been establishing a target value for each of the 20 million homes they have collated throughout Spain.

This service collects information based on cadastral data, where the address, surface area, use, characteristics and age, among others, are specified. From these data, others related to the offer prices of houses with similar characteristics are added.

In this way, and completely free of  charge , you will only have to indicate the address of the property or its cadastral reference (which appears, for example, in the information sent by the cadastre headquarters) to obtain information on that target value, or a range of maximum and minimum prices. In addition, there is the possibility of obtaining a PDF report if you want to obtain more detailed information about the property. Of course, for this Premium report you will have to pay 15 euros.



Housell is another online home appraisal system that will allow you to know the approximate price of your home instantly . To do this, they are based on 3 main factors: location of the home, the PER indicator (Price Earning Ratio), an indicator that relates the price of the houses with their rent; and the characteristics of the home.

From here, the process is pretty straightforward . To begin, we must enter the address where the home in which we are interested is located, as well as its size. In this section we must take into account the number of rooms and the surface in square meters. Next, and to obtain an appraisal as accurate as possible, we will have to answer a series of questions about our house. For example, the type of home it is, its current state, if it has other infrastructures such as a swimming pool, garage or terrace, among others.



ProntoPiso is a real estate agency created by experts in the sector who have developed a system based on the transparency of the information requested. From their website, they will make an assessment of your home using a simple form, always offering a result according to the reality of the market .

The calculator designed by ProntoPiso takes into account the sale price of the houses that are in the vicinity of your home. Next, a specialized expert will review the information and if necessary adjust the price even more according to the particular conditions of the home. That is, if it is more or less deteriorated. Finally, an agreement is reached and all aspects of the sale are fixed on a guaranteed minimum price.

From this point, they ensure that the house will be sold within the next 90 days . Otherwise, the agency agrees to  advance you 95% of its value at no cost .

Third b

Third b

From its website, this startup, owned by the famous idealista real estate portal, provides detailed reports on the real estate market based on public data from the Ministry of Finance and Public Administrations .

Depending on the quantity and quality of the data obtained to calculate the estimated price, they will assign different degrees of reliability (A +, B, B-). The idea of ​​this project is basically to offer a website where anyone can find an estimated valuation of their home .

In addition, they will provide you with the necessary information so that you can make the decision with total security: estimation of the value of the properties, price evolution, nearby points of interest, etc.

transaction society

Appraisal Society

On its website, Sociedad de Valuation offers an online appraisal tool supported by the data offered by the digital company specialized in real estate Big Data ubanData Analytics (uDA). Those interested in using their services will be able to access up-to-date information on the real estate market in each area of ​​Spain , with a fairly complete valuation report on both the purchase and rental of homes in that location, their profitability and the convenience or not of to invest. The cost for your online appraisal service is 10 euros.

UDA technology collects data from various public sources (INE, Cadastre, ...) and private sources (portals and real estate agencies, appraisers). Thanks to its algorithm, they analyze all this collected data and synthesize it into indicators with relevant information for the user. As a result, the client will have instant knowledge of the profitability and risk ratios of each home .