The process of legalising a property can be initiated for various reasons. For instance, if a property was built illegally, we'll need to certify its surface area and other fundamental elements like habitability. You can freely choose the specialist technician who will prepare the surface certificate. Find and approach the one you prefer and arrange an appointment. On the day of the appointment, you must allow them access to the property, and they will take their measurements. It would be very unusual for a surface certificate to delay any procedure you are involved in. Once you confirm an appointment with the competent professional and they take measurements at your property, the preparation of the surface certificate should not take longer than one or two days. However, you should allow for extra time. In some cases, the relevant professional body's endorsement is required, a procedure that can slightly extend the process.

– Law 58/2003, of December 17, General Tax Law. You may need to 'dispute' the valuation of a property with the Tax Administration, as they might be using a value that is disadvantageous to you from a tax perspective. To resolve this difference of opinion, there is the contradictory expert appraisal. To carry this out, you might need a surface certificate that measures the property's size more accurately. Article 57 outlines the value verification methods the Administration can use, against which you can object with a contradictory expert appraisal. Title III, which deals with tax treatment, dedicates Article 135 to describing the contradictory expert appraisal: when and how to request it. The certificate is a standard document, but its preparation involves work of variable complexity. The cost of the certificate may include the surface area to be measured, the type of property, and the purpose of the certificate. More generic aspects like the property's location or the urgency of the commission. You should request a surface certificate when required by public authorities, the judiciary, the property registrar, or a notary, for specific cases of routine administrative procedures and various registrations. But also for urban planning and expropriation purposes, financial purposes, cadastral valuations, or legal effects.

However, to overcome this deficiency and unify certain criteria (which lends special quality and trust to the certificate), some professional bodies may have official templates for surface certificates. These templates detail the minimum content the certificate must include. It is up to the technical professional to follow these specifications, if they exist, and apply the technical methods they master for each case. There's the age, the quality of materials, the interior layout… but one of the most important characteristics for valuing a property is its surface area. And this surface area can be measured well, or measured poorly. It can be measured by trusting the plans, or it can be done _in situ_ on the actual surface. It can be measured with inadequate techniques, or it can be done with professionalism and the right technology. La Herrada bungalows have repetitive installations, the same model of fuse box, water heater, and air conditioning in many homes. This reduces diagnosis time and allows us to carry common parts in stock.

The price for rendering and plastering in Gràcia typically ranges from €160 to €3400 as an indicative reference. The final amount depends on the property's condition, materials, and working time, and we always finalise it after seeing photos or – if you prefer – a site visit, with no obligation. In the area, the market benchmark is around €550 for similar jobs; we are usually below that when the property's condition allows. FINAL PRICE: the price shown here is fixed, with no surprises, and EVERYTHING INCLUDED: home visit, inspection, measurements, preparation... The fee for this service varies depending on several factors, such as the property's location, the complexity of the appraisal, and the professional undertaking it. Generally, for properties with smaller surface areas, around 120 m², prices can range from approximately €150 to €250. However, for larger properties, the price may increase, potentially reaching €300 or more.