Appraisal of storage rooms
TECNITASA / Appraisal / Residential real estate / Storage rooms
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In Tecnitasa Group we are specialists in the valuation of storage rooms with more than 50 years of experience in the sector. We offer a personalized and professional service , thanks to our wide network of professionals.
The appraisal of storage rooms is a technical procedure to determine the real value of these auxiliary spaces. Although their size is usually small, their importance in sale-purchase or rental transactions is significant, especially in densely populated urban areas, where every square meter is essential. An official appraisal accurately reflects the state of the market value and the characteristics of the storage room.
In addition, it guarantees compliance with legal regulations ECO/805/2003 and allows financial or property transactions. If your storage room is in the same location and linked to the cadastral property, it is included in the price of the appraisal of your property.

>Whatis involved in the valuation of a storage room?
The appraisal of a storage room does not only involve valuation of its size or location, but also requires a thorough in-depth analysis of its specific characteristics. This technical procedure covers multiple aspects, such as the state of conservation, safety conditions, accessibility and legal restrictions. Includes:
- Physical inspection of the propertyThe general condition of the storage room, its maintenance and possible damages are analyzed.
- Market researchComparison of similar properties in the area to determine a competitive value.
- Analysis of applicable regulationsThe following is done to verify that the storage room complies with local laws, such as the General Urban Development Plan (PGOU) of the corresponding municipality.
- Preparation of a technical reportThe appraiser prepares a detailed document that includes all the aspects evaluated and the conclusion on the value of the property.
> Key factors influencing the appraisal of a storage room
The valuation of a storage room is influenced by a combination of physical, legal and economic factors. These elements interact to define its market attractiveness and ultimate value.
Size, volume and functionality
The size of the storage room, measured in square meters, and its volume capacity are essential factors. The Order ECO/805/2003 requires precise measurement to ensure maximum transparency. Larger or optimally dimensioned storage rooms are more highly valued, especially if they allow for efficient use of space. In addition, functionality is influenced by aspects such as:
- Useful heightStorage rooms with high ceilings can facilitate vertical storage.
- Regular shape: a space without nooks and crannies or corners that are difficult to take advantage of is more attractive.
Location within the building
The location of the storage room in the building or premises has a direct impact on its valuation:
- Easy accessibilitystorage rooms located on the first floor or close to the main accesses are more in demand.
- Proximity to common areasspaces near elevators, ramps or stairs facilitate their use.
- Environment of the propertyThe geographical location of the building also has an influence; for example, a storage room in cities such as Madrid or Barcelona tends to have a higher value than in rural areas due to the high demand for space.
Safety conditions
Security is a crucial factor. Storage rooms equipped with:
- Reinforced doors.
- Video surveillance systems.
- Alarms connected.
- Electronic access controls.
They are better valued for possible interested partiesThey offer greater protection for stored goods. In addition, current regulations require minimum security levels in residential or commercial buildings.
Ventilation and state of conservation
Air quality and maintenance are essential to determine the functionality of the storage room. According to regulations, a storage room must be free of dampness, cracks or mold, as these problems can damage the stored goods. Appraisers rate positively:
- Natural or assisted ventilation.
- Maintenance of walls, floors and ceilings in good condition.
Urban planning regulations and legal restrictions
The value of a storage room also depends on the permitted uses according to the PGOU of the municipality. For example:
- Storage rooms intended for private storage have a different valuation than those that allow commercial uses.
- Compliance with legal requirements such as accessibility or safety, especially in homeowners’ associations, is a decisive factor.
Regulations such as the Horizontal Property Law regulate the conditions of use in community buildings, while the Technical Code of Technical Building Code (Código Técnico de la Edificación, CTE) may be relevant in terms of structural safety or accessibility.
> Why is it important to appraise a storage room?
Perform an official official appraisal of a storage room is not only a technical requirement, but a fundamental tool to guarantee operations that provide a market value in line with the demand of the real estate sector. This process is indispensable in many contexts:
Knowing the exact value for purchase or sale
An official appraisal ensures that the price of the storage room is fair according to its characteristics, both for the seller and the buyer. This is especially important in a competitive real estate market such as big cities due to lack of space and high demand.
Maximizing rental yields
For owners interested in renting a storage room, the appraisal allows to establish a price according to its market value, maximizing the income. It also offers confidence to tenants, who know that they are paying a price according to its characteristics.
Use as financial guarantee
Storage rooms, like any other real estate, can be used as collateral in financial transactions, such as mortgages or personal loans. An official appraisal is necessary to determine their market value so that credit institutions can grant a mortgage.
Estate planning and inheritance
In cases of inheritance partitions, an official appraisal avoids family conflicts by guaranteeing an equitable distribution of the estate. According to the Civil Code, this process is key to ensure transparency and fairness in the valuation of assets.
Storage insurance security
Having an official appraisal facilitates the establishment of an adequate value, protecting both the property and the stored goods in case of damage or loss, avoiding the payment of inferior insurances that may cause a lack of coverage, leading to the total loss of the property.
Advantages of hiring a professional storage room appraisal service

Hiring a professional valuation service offers multiple advantages, especially in such a specific market. The technicians have knowledge and experience in the valuation of ancillary properties, guaranteeing a process that complies with ECO/805/2003 regulations and market value.
Reasons to trust experts
We understand the particularities of the storage room market, such as the importance of location, dimensions and state of conservation. Their analysis allows us to make objective valuations adjusted to the local environment, which are essential for any real estate transaction.
Appraisals based on the current local market
One of the main benefits of hiring a professional service is the ability to perform appraisals aligned with current local market conditions.
- Comparative Market Analysis (CMA)Comparative Market Analysis (CMA): Technicians examine similar properties in the same area to ensure that the value reflects current trends and prices.
- Demand studyIn high-density urban areas, such as Madrid, Barcelona or Valencia, the demand for storage rooms can change rapidly. Technicians evaluate these changes to provide an accurate assessment.
- Identifying opportunitiesA market-oriented appraisal can help to identify undervalued storage units or those with high appreciation potential.
Experience in auxiliary properties
Storage rooms, being ancillary properties, present unique characteristics and challenges compared to residential or commercial real estate, it is needed:
- ExpertiseThe technicians understand how factors such as access, security and condition affect the market value of storage rooms.
- Specific methodologyThe methodology applies technical criteria adapted to non-residential spaces, such as the functionality of the available volume and its compliance with local and national regulations.
- Approved technical reportTecnitasa Group guarantees that the final documentation complies with legal requirements, offering quality standards valid for banking or administrative entities.
Discover our residential real estate appraisal services
In addition to storage rooms, Tecnitasa Group offers appraisals of all types of residential properties. Its specialist team
applies specific criteria for each type of property, adapting to the particular needs of its clients.
Latest news on the residential market
Check our blog for up-to-date news and specialized articles on the residential real estate sector. We offer information on trends, market changes, regulations and advice for owners and investors in this segment.
Tecnitasa Group has a wide network of more than 50 offices, which allows it to take on projects thanks to its expert team in residential real estate appraisals, ensuring accurate reports adapted to each market.
Frequently asked questions about storage room appraisals
What documents do I need for a storage room appraisal?
The following documents are required to perform an official appraisal:
- Registry Documentation: Simple note of the property.
- Cadastral card: Code and document issued by the Cadastre describing the storage room (location, area, use).
How does the valuation of a storage room differ from that of other properties?
The valuation of a storage room focuses on specific aspects that differ from the valuation of homes or offices:
Functionality of the space: Its usefulness as storage space is evaluated, considering its volumetric capacity and ease of use.
Access and security: Key factors that influence the valuation and that are less relevant in homes or premises.
Local regulations: Storage rooms are usually subject to specific restrictions depending on their location within the building or premises.
Is it mandatory to appraise a storage room before selling or renting it?
Although it is not mandatory, it is highly recommended to ensure:
- A price in line with market value.
- Trust between the parties to a real estate transaction.
- The validity of documentation in transactions with banking or legal entities.
In any case, banks require an approved appraisal if the storage room is used as mortgage collateral.
How much does it cost to perform a professional appraisal of a storage room?
The cost of an official appraisal can vary depending on several factors, therefore, in Tecnitasa Group we offer competitive rates, speed and the guarantee of more than 40 years of experience.
Remember that a storage room that is located in the same building as the property and that is linked to it, will be included in the price of the appraisal of your property.