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How to accurately estimate a property's value?

ACHAT/VENTE
06/03/2025 - 5 min read
How to accurately estimate a property's value?

The valuation of a property is an essential step before any real estate transaction. Clearly defining the market value of a house or an apartment allows for setting an appropriate price that aligns with the current real estate market. What are the best methods to accurately estimate the value of a property? Here are the essential techniques and criteria for conducting a reliable appraisal. Contact your Optimhome advisor for a professional valuation.


Criteria Influencing the Value of a Pr​oper​ty


Certain factors can justify an increase or decrease in a property’s value.


The Impact of Location and Property Features

Real estate appraisal primarily relies on location. A property situated in a dynamic area with modern infrastructure and easy access is more attractive. Green spaces, schools, shops, and public transport play a crucial role. The closer a property is to these amenities, the higher its value.

The living space and room layout also affect the value. A well-designed, well-lit property with efficiently used spaces will be more appreciated. The value of the property can also be enhanced by the presence of a balcony, terrace, or garden.


General Condition and Technical Diagnostics


The property’s condition directly impacts its market value. A renovated property equipped with modern materials sells at a higher price than one in need of repairs. Energy renovation work, such as effective insulation or replacing old windows, can be a major advantage.


Property diagnostics are also crucial. A good Energy Performance Certificate (EPC) can increase the property’s value, while issues like asbestos, lead, or outdated electrical installations can reduce its attractiveness and lead to price negotiations.


Steps for a Successful Property Valuation

Market Analysis


Before valuing a property, it is essential to analyze the local real estate market. Property value can be assessed by comparing similar properties that have recently been sold.


Market trends should also be considered: in times of high demand, prices tend to rise, whereas a declining market requires a more cautious valuation.


Assessing Property Characteristics


Every property is unique. It is important to analyze its specific features: general condition, layout, equipment, orientation, and energy efficiency. All these elements influence the final value.


An Optimhome real estate advisor can refine this analysis and provide a personalized valuation based on advanced criteria.


Real Estate Valuation Methods


Comparative Market Analysis and Online Tools


The most commonly used approach is comparing the property to similar homes recently sold. This real estate comparison considers location, size, and general condition to determine an appropriate price.


Free online valuation platforms provide an initial estimate based on databases. However, they do not account for all the specific details of the property, limiting their accuracy.


Expert Opinion from an Optimhome Advisor


Consulting an Optimhome real estate advisor ensures a more reliable and personalized valuation. These experts have an in-depth knowledge of the local real estate market and adjust property prices based on current trends.


An Optimhome advisor conducts a precise and detailed evaluation of your property. Their tailored support maximizes your chances of selling under the best conditions. Acting as intermediaries, they facilitate effective negotiations and smooth transactions between buyers and sellers.


How to Calculate the Selling Price of a Property?


Surface Area and Price per Square Meter


  1. Determine the property’s living space, which is available in tax records or can be calculated by measuring room areas, excluding spaces like basements, garages, or unfinished attics.
  2. Research the average price per square meter using specialized real estate websites based on recent sales.


The calculation is straightforward: living space (m²) multiplied by the average price per square meter gives the estimated property value. However, additional factors such as the property’s overall condition and appeal can influence this estimate.


For a more accurate and reliable evaluation, an Optimhome real estate advisor’s expertise is recommended. Their market knowledge ensures a coherent and attractive valuation.


Common Mistakes to Avoid in Property Valuation

Overestimation or Underestimation of the Property


Setting an excessively high price can discourage buyers and extend the selling time. Overestimation often leads to endless negotiations or a lack of offers. Conversely, underestimating a property results in financial loss for the seller.


A real estate simulation based on market analysis helps determine a fair price and attract the right buyers quickly.


Ignoring Market Trends and Local Specificities


The real estate market is constantly evolving. Property values are influenced by interest rates, acquisition subsidies, and supply and demand. Being aware of these changes allows for smart price adjustments.


Local factors are also crucial. Two similar properties may have different prices depending on neighborhood activity, infrastructure quality, and demand in the area.


The Impact of Market Conditions on Real Estate Valuation


Market Cycles and Their Influence on Prices


The real estate market evolves in cycles with three main phases:

  • Expansion: A period of economic growth where demand is high, optimism prevails, and prices rise.
  • Stagnation: A phase where prices stabilize as supply and demand reach equilibrium.
  • Recession: A period of economic slowdown marked by declining demand, potentially leading to lower property values.


Each cycle affects valuation. During an expansion, property prices may increase due to strong demand, whereas in a recession, caution is needed to avoid overvaluation.


The Effect of Interest Rates and Financing on Property Value


Loan interest rates play a key role in real estate dynamics. When rates are low, financing becomes more accessible, stimulating demand and driving prices up.


Conversely, rising rates reduce buyers’ purchasing power and slow market activity. Therefore, financing conditions must be considered in property valuation, as they directly affect potential buyers' budgets.


The Impact of New Regulations on Property Value


New regulations also shape the real estate landscape. For example:

  • Energy Standards: The obligation to improve a property’s energy performance can increase its value but may require prior investments.
  • Rent Control: In some areas, rental price regulations can limit investment profitability, affecting the value of rental properties.
  • Renovation Incentives: Government incentives encourage property owners to upgrade their homes, potentially boosting property values over time.


These regulations must be factored into valuation analyses to ensure realistic estimates.


Why Hire a Professional for Property Valuation?


The Limits of Self-Valuation


Many sellers make mistakes by relying solely on online tools or their emotional attachment to their property. Common pitfalls include:

  • Emotional bias: Owners often overestimate their home’s sentimental value.
  • Poor market analysis: Without deep knowledge of the sector, understanding actual price trends is difficult.
  • Limitations of online estimators: These tools use generic data and do not consider specific property characteristics, leading to inaccurate valuations.


Local Expertise from an Optimhome Advisor


An Optimhome real estate advisor has up-to-date local market knowledge. Thanks to this expertise, they can adjust property prices based on neighborhood specifics and economic trends. Using professional tools and detailed property analysis, they provide tailored valuations, ensuring a realistic and attractive price.


Maximizing Your Chances of Selling Quickly and at the Best Price


An accurate and realistic valuation is one of the key factors for a successful sale. By setting an appropriate price, the seller attracts a larger number of serious buyers, which speeds up the transaction and often results in a better selling price. Concrete examples show that properties correctly assessed sell faster and with fewer endless negotiations, thereby strengthening buyers' confidence and facilitating a smooth transaction.


Conclusion


A reliable real estate valuation requires a deep understanding of the market, effective appraisal tools, and professional expertise. Setting a fair price helps sell quickly and under the best conditions.


To maximize accuracy, it is advisable to use multiple methods and avoid common mistakes. Seeking expert guidance is often the best way to ensure a successful real estate transaction.


Do you want a reliable and personalized property valuation? Contact an Optimhome advisor today for expert guidance and a seamless transaction!


FAQ


1.  What are the essential criteria for estimating a property?


The location, surface area, general condition, and technical diagnostics determine the property's value.


2. What methods should be used for an accurate estimate?


Comparing the property to similar sales and consulting an expert help obtain a reliable estimate.


3. How does the market influence property value?


Economic cycles, interest rates, and regulations impact demand and, consequently, prices.


4. Why seek a professional to estimate your property?


An expert avoids emotional biases and incomplete analysis, ensuring an evaluation suited to the local market.


5. What pitfalls should be avoided when estimating a property?


One must avoid overestimation, underestimation, and a superficial analysis that overlooks market trends.



Author

Fabrice DOBROWOLSKI - Network Development Director

Optimhome offers you personalized support for your real estate project. Benefit from all my advice, based on several years of experience, to ensure the success of your project.

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