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The pitfalls of private real estate sales between individuals

INVESTISSEMENT
12/01/2026 - 9 min read
The pitfalls of private real estate sales between individuals

Selling or buying without an agency or an advisor: is it really suited to my property project? What are the main risks to be aware of in a private sale between individuals?

The pitfalls of private real estate sales between individuals are explained here: definition, steps, risks, and concrete solutions to sell or buy with peace of mind.

In this article, we detail the dangers of buying and selling between individuals, showing why the absence of a professional intermediary may seem attractive but carries multiple sources of problems for both the seller-owner and the buyer.

Contact your local Optimhome real estate advisor to get personalised answers and succeed with your sale or purchase project thanks to comprehensive support.

Understanding private real estate sales between individuals and the motivations behind them

A private real estate sale between individuals refers to a transaction carried out directly between a seller-owner and a buyer, without a mandate from a real estate agency or a real estate agent operating under a network. It concerns most property types: house, apartment, land, or commercial premises.

Motivations are mainly financial. Many people want to save on agency fees to maximise the net proceeds for the seller. Others want to keep control over the timeline, viewings, and negotiation.

These steps can go through mainstream digital platforms or specialised sites such as PAP. These channels make it easier to post a property listing and connect sellers and buyers directly, but they do not provide the local expertise of a professional in the field — and that is precisely the problem! A lack of knowledge about procedures and the market exposes both parties to costly mistakes.

Before considering this option, you need to know how to price a property accurately against market prices in the area, prepare the mandatory diagnostics, gather the documents required by the notary, and manage every step up to signing: a path full of pitfalls for amateurs.

What is a private real estate sale between individuals?

A house, apartment, or land sale between individuals is a sale where the owner offers the property without an agency mandate. Even without an agency or real estate agent, the transaction remains notarial. The authentic deed must be signed with a notary. The notary checks title compliance, searches for mortgages, and registers the sale with the land registry/publication service.

Why do some people choose to sell or buy without a real estate agency?

The main argument is saving fees. Some sellers believe they can gain 3% to 7% of the price by avoiding agencies. They hope to achieve the best sale price and attract buyers easily.

Confidentiality and control also matter. Some prefer to manage contacts, select discreet buyers, and conduct viewings themselves.

Finally, practical reasons can motivate a private sale: needing to sell quickly due to a job transfer, personal constraints, or a family emergency — thinking they will save time by skipping a professional intermediary.

Unfortunately, the absence of a real estate professional increases the risk of mistakes in pricing, writing the listing, managing viewings, negotiating, drafting the promise to sell, the preliminary sale agreement, and the authentic deed.

Pitfalls to avoid for seller-owners in private real estate sales

Succeeding in a private sale is possible, but it requires careful preparation and a solid understanding of every step in a property transaction. You need a realistic valuation, a complete file, high-quality photos, an effective distribution strategy, a well-managed negotiation, and high vigilance when drafting and signing the final documents. This section describes the most frequent mistakes and provides practical solutions.

Whatever the distribution channel (well-known property portals, local platforms, or word of mouth), the final deed is signed with the notary. Before the preliminary sale agreement, the seller must provide the property diagnostics, the EPC (DPE), and, when necessary, the co-ownership regulations. Respecting the required administrative steps avoids major delays.

Pitfall #1: Pricing the property correctly and its impact on the sale

Free online valuation tools provide a benchmark. They do not replace local expertise. A realistic sale price must take into account the average price per square metre, the year of construction, and the property’s condition.

A price that is too high reduces visibility. Buyers sort listings by price and avoid overpriced properties. Conversely, a price that is too low causes a financial loss. Planning a negotiation margin of 2% to 3% is a common practice.

Bringing in a professional to assess the true local market value helps set a consistent price and sell faster at the best price.

Pitfall #2: Poor marketing strategy and weak property listing creation

A strong listing makes the difference. Quality photos and a precise, complete description attract qualified visitors. Mention features, year of construction, surface area, and proximity to transport.

Publish on major property platforms to maximise visibility. Comply with legal requirements: EPC (DPE), surface-area disclosures, and required diagnostics. An incomplete listing discourages buyers.

Write a clear and honest fact sheet. State charges, rental status if the property is rented, and co-ownership rules for apartments. An optimised listing reduces time on market by attracting more serious buyers.

Pitfall #3: Managing viewings poorly and targeting potential buyers

Organising and hosting viewings may seem easy, but in reality, it is an art — and without an expert method, visitors’ perception can suffer. During viewings, presenting the home room by room is a skill: kitchen, living room, bedrooms, bathroom, and outdoor areas. Ideally, prepare a complete file to hand to visitors to make the best impression.

You also need to know how to filter enquiries and offer suitable time slots. Without filtering, the seller wastes time on non-serious prospects. Conversely, excessive control can discourage serious buyers.

For security reasons, never open your property to an unknown person without verification. Keeping a copy of identification documents can be useful. A complete file reassures and facilitates serious purchase offers.

Pitfall #4: Negotiation, legal clauses, and official documents

Negotiation requires tact and market knowledge. Accepting an offer too quickly or signing a poorly drafted agreement can lead to a dispute. The promise to sell or preliminary sale agreement must specify the price, deadlines, and conditions precedent: a detail of the highest importance to protect yourself from unpleasant surprises.

The notary plays a key role. They verify easements and mortgages and draft the authentic deed. Attaching all diagnostics to the file and clarifying loan conditions protects both parties as well.

Having clauses drafted and reviewed by a professional is a safeguard that is risky to do without. This expertise secures the transaction and avoids future disputes.

Other common pitfalls for the seller-owner

The seller may be liable for hidden defects, unless a valid exclusion clause applies. You must remain transparent about completed works and keep invoices. Case law reminds that an exclusion clause does not protect a bad-faith seller.

Forgetting a document (co-ownership rules, floor area certificate, EPC/DPE) delays the sale. You must anticipate administrative steps and centralise your file. A local real estate advisor is extremely helpful in checking document completeness and directing you to reliable diagnosticians or tradespeople.

Mini case study: The impact of the right price on a successful sale

Scenario: a house initially valued at €500,000 is listed privately at €535,000 to compensate for the absence of fees. After six months with no offer, the seller lowers the price and finally sells at a net €470,000. They suffer a significant net loss.

By contrast, a realistic valuation at €510,000 with a 2% to 3% negotiation margin could have resulted in a quick sale around €505,000. This case illustrates the impact of a good valuation on both timeline and sale price.

Lesson: a reliable valuation, a well-prepared listing, and a complete file foster a successful transaction. Consulting a local real estate advisor to validate pricing positioning is a reassuring strategy.

Pitfalls to know for buyers in private real estate sales between individuals

Buying directly from an individual may seem simple and economical. Yet an isolated buyer risks facing incomplete information, outdated diagnostics, or incorrect pricing. This section details key vigilance points to secure a purchase.

A successful purchase project relies on serious preparation: approved budget, loan conditions, and search criteria. A local real estate advisor helps you refine criteria, select suitable properties, negotiate with the right strategy, and define a purchase offer consistent with the average price per square metre.

Pitfall #1: Poor preparation of your property purchase project

Before visiting, define your budget, down payment, and borrowing capacity. List your priorities: number of rooms, location, and year of construction. A poorly prepared buyer risks rushing into an unsuitable property.

Check the property’s status: vacant or occupied by a tenant. For an apartment, ask for the co-ownership regulations and the latest general meeting minutes. These elements strongly influence the purchase decision.

An Optimhome advisor filters the best listings for you, targets the right platforms, and organises efficient viewings. They may also access off-market opportunities and help you build a strong financing file.

Pitfall #2: Misjudging properties and ignoring essential diagnostics

Property diagnostics (EPC/DPE, lead, asbestos, termites, risk report) are mandatory and must be provided to the buyer. Accepting an incomplete file can expose you to costly works or the discovery of hidden defects.

For a property rated F or G on the EPC (DPE), request an energy audit. For an apartment, check service charges and the condition of common areas. Inspect the roof, plumbing, and signs of humidity in the bathroom.

These checks protect the buyer and can serve as negotiation arguments if works are required.

Pitfall #3: Negotiating alone without expertise or strategy

Negotiation covers the price, but also deadlines, conditions precedent, and allocation of works. An inexperienced buyer may poorly formulate their offer and lose important levers.

Include clear conditions precedent in the agreement (loan approval, absence of mortgage). Have the agreement checked by the notary to secure the transaction. Working with an advisor helps secure purchase offers and, above all, limit risks after signing — to avoid unpleasant surprises that can be very costly!

The know-how of Optimhome real estate advisors: your ally to secure and succeed with your transaction

At Optimhome, our local advisors are trained professionals equipped with advanced tools to support you from A to Z. They value, market, and negotiate your property while ensuring file compliance (diagnostics, EPC/DPE, co-ownership regulations).

Their goal is to optimise the transaction, reduce timelines, and secure every step, from online listing to signing the deed with the notary. To secure your project, contact an Optimhome advisor near you.

Why use an advisor for your property purchase?

An advisor brings local expertise. They identify rare properties, objectively assess strengths and weaknesses, and protect the buyer during negotiations. They also help build a strong financing file. A local real estate advisor structures the search, filters listings, and secures the process. They organise room-by-room viewings, check diagnostics, and prepare purchase offers suited to the local market.

The time savings and peace of mind provided by a professional often justify their involvement. The advisor coordinates stakeholders (notary, diagnostician, bank) and simplifies the process up to signing the deed.

Concrete benefits of professional Optimhome support

Optimhome advisors combine digital tools, a local network, and personalised support. They provide a free valuation, prepare marketing, and negotiate to achieve the best price.

They coordinate the steps: distribution, viewings, diagnostics, and notarial appointments. Their expertise adapts to profiles: first-time buyers, investors, or luxury buyers. Book an appointment for tailored support.

Conclusion

Selling or buying privately may seem economical, but it requires rigorous preparation: valuation, diagnostics, and a complete file. It is a very risky choice given what is at stake.

The main pitfalls relate to incorrect pricing, poor-quality listings, poor management of viewings and negotiations, and poorly drafted legal clauses.

Buyers must check diagnostics, prepare financing, and include precise conditions precedent to secure their offer.

Special cases (new build, life annuity/viager, luxury, rental investment, commercial property) require specific expertise and heightened vigilance. In these highly targeted markets, it is almost impossible to succeed without expert help.

Best practices: complete file, well-prepared listing, realistic valuation, and professional organisation of viewings and negotiations.

To minimise risks, get support from a professional who knows the local market and administrative procedures.

Contact your local Optimhome real estate advisor to obtain a reliable valuation, benefit from personalised support, and secure every step of your project, whether you are a seller-owner or a buyer.

FAQ

How does a private real estate sale between individuals work?

The sale takes place without a professional intermediary: valuation, file preparation, online listing, viewings, agreement formalised by a promise to sell or preliminary sale agreement, then signing the authentic deed with the notary.

What is the best site for private real estate sales between individuals?

The most used sites remain Leboncoin and certain specialised local platforms. They offer broad visibility but require a complete listing and high-quality photos.

What are the steps to buy a property privately?

Key steps: prepare your budget, search on platforms, visit, check diagnostics, negotiate, sign a preliminary sale agreement, then the final deed with the notary.

Who pays for the preliminary sale agreement in a private sale?

Drafting costs are generally borne by the buyer, unless agreed otherwise. These costs remain modest compared with notary fees.

How do you sell a property privately?

To sell effectively: set the right price, prepare diagnostics, write a detailed listing, organise viewings, negotiate methodically, and finalise the sale with the notary.



Author :


Fabrice DOBROWOLSKI - Optimhome 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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