{"id":167519,"date":"2026-10-15T14:00:00","date_gmt":"2026-10-15T12:00:00","guid":{"rendered":"https:\/\/www.immo-invest.ch\/?p=167519"},"modified":"2026-10-13T14:44:41","modified_gmt":"2026-10-13T12:44:41","slug":"maklerwahl-kann-den-verkaufspreis-brutal-verschieben","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/maklerwahl-kann-den-verkaufspreis-brutal-verschieben\/","title":{"rendered":"Le choix de l&rsquo;agent immobilier peut faire varier consid\u00e9rablement le prix de vente"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Cet article sp\u00e9cialis\u00e9 a \u00e9t\u00e9 publi\u00e9 le 3 septembre 2026 dans <em>le Journal of European Real Estate Research<\/em>. Il s&rsquo;appuie sur plus de 260 transactions immobili\u00e8res priv\u00e9es r\u00e9alis\u00e9es en Suisse et examine l&rsquo;ampleur des variations des prix de vente propos\u00e9s d&rsquo;un agent immobilier \u00e0 l&rsquo;autre, ainsi que l&rsquo;impact des incitations contractuelles sur le r\u00e9sultat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les propri\u00e9taires, la situation est d\u00e9licate, car la perte de valeur ne menace pas seulement en cas de mauvaise phase du march\u00e9. Elle peut d\u00e9j\u00e0 commencer d\u00e8s la signature du mandat. Si l\u2019\u00e9valuation initiale est trop basse, le risque d\u2019une vente rapide en dessous de la valeur potentielle augmente. Si elle est trop \u00e9lev\u00e9e, la mise en vente s\u2019\u00e9ternise jusqu\u2019\u00e0 ce que des baisses de prix deviennent n\u00e9cessaires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u2019estimation constitue d\u00e9j\u00e0 un levier sur le prix<br><\/strong>Selon l\u2019\u00e9tude, deux agents immobiliers peuvent proposer, pour un m\u00eame bien immobilier, des prix de vente s\u2019\u00e9cartant de pr\u00e8s de 180 000 francs. C\u2019est pr\u00e9cis\u00e9ment l\u00e0 que r\u00e9side le c\u0153ur de l\u2019\u00e9tude. Le produit de la vente ne d\u00e9pend pas seulement de l\u2019emplacement, de l\u2019\u00e9tat et de la demande, mais aussi, de mani\u00e8re mesurable, de l\u2019interm\u00e9diaire qui se voit confier le mandat. Le projet de la ZHAW consacr\u00e9 \u00e0 ce sujet s\u2019est d\u00e9roul\u00e9 d\u2019avril 2024 \u00e0 d\u00e9cembre 2024 et est d\u00e9sormais achev\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Les commissions cr\u00e9ent des incitations erron\u00e9es ou trop fortes<br><\/strong>Cet effet est particuli\u00e8rement marqu\u00e9 dans le cas de ce qu\u2019on appelle la r\u00e9mun\u00e9ration marginale. Il s\u2019agit de la part de commission suppl\u00e9mentaire qu\u2019un agent immobilier gagne effectivement lorsqu\u2019il conclut une vente \u00e0 un prix plus \u00e9lev\u00e9. Entre les transactions comportant une commission marginale sup\u00e9rieure \u00e0 10 % et celles pr\u00e9sentant une incitation moindre, la diff\u00e9rence de prix s\u2019\u00e9l\u00e8ve \u00e0 120 461 francs. Ces petits gains suppl\u00e9mentaires affaiblissent ainsi l\u2019incitation \u00e0 n\u00e9gocier plus longtemps pour obtenir la derni\u00e8re baisse de prix.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Un march\u00e9 peu transparent aggrave le probl\u00e8me<br><\/strong>L\u2019\u00e9tude porte sur un march\u00e9 suisse o\u00f9 les donn\u00e9es de transaction accessibles au public restent rares. C\u2019est pr\u00e9cis\u00e9ment ce manque de transparence qui renforce l\u2019importance du choix de l\u2019agent immobilier, du mod\u00e8le d\u2019\u00e9valuation et de la structure de r\u00e9mun\u00e9ration. Dans la description du projet, la ZHAW cite donc trois leviers d\u2019am\u00e9lioration : une s\u00e9lection des agents immobiliers fond\u00e9e sur l\u2019analyse des donn\u00e9es, des estimations de prix plus pr\u00e9cises gr\u00e2ce \u00e0 plusieurs mod\u00e8les d\u2019\u00e9valuation et des syst\u00e8mes d\u2019incitation remani\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour les vendeurs, il ne s\u2019agit pas l\u00e0 d\u2019un aspect th\u00e9orique secondaire, mais d\u2019une cons\u00e9quence tr\u00e8s concr\u00e8te. Ceux qui se contentent de l\u2019offre la plus avantageuse ou de la premi\u00e8re estimation la plus \u00e9lev\u00e9e risquent de perdre beaucoup d\u2019argent. La question cruciale est de savoir si l\u2019\u00e9valuation, la commercialisation et le mod\u00e8le de commission sont r\u00e9ellement align\u00e9s sur le m\u00eame prix cible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jusqu\u2019\u00e0 180 000 francs de diff\u00e9rence pour un m\u00eame bien immobilier, soit un \u00e9cart de 120 461 francs selon les conditions de commission. Une \u00e9tude de la ZHAW montre que, lors de la vente d&rsquo;un logement, ce n&rsquo;est pas seulement le march\u00e9 qui compte, mais aussi le choix de l&rsquo;agent immobilier charg\u00e9 du mandat et la mani\u00e8re dont il est r\u00e9mun\u00e9r\u00e9.<\/p>\n","protected":false},"author":2,"featured_media":167520,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[55961,56003,55970,56030,4957],"tags":[6211,872,3931,62759,2002,62760,32797,17271,2177],"class_list":["post-167519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evaluations-analyses-de-marche","category-residentiel","category-transactions-deals","category-vente-courtage","category-region-zurich","tag-immobilienbewertung-fr","tag-immoinvest-fr","tag-immonews-fr","tag-maklerwahl","tag-news-fr","tag-provisionsmodell","tag-verkaufspreis-fr","tag-wohnimmobilien-fr","tag-zhaw-fr"],"acf":{"bild_mit_ki_erstellt_worden":["Ja"],"lead":"Jusqu\u2019\u00e0 180 000 francs de diff\u00e9rence pour un m\u00eame bien immobilier, soit un \u00e9cart de 120 461 francs selon les conditions de commission. Une \u00e9tude de la ZHAW montre que, lors de la vente d'un logement, ce n'est pas seulement le march\u00e9 qui compte, mais aussi le choix de l'agent immobilier charg\u00e9 du mandat et la mani\u00e8re dont il est r\u00e9mun\u00e9r\u00e9.","autor":"","ort":"Z\u00fcrich\/Schweiz","bildunterschrift":"","zusammenfassung":"<ul>\r\n<li>Maklersch\u00e4tzungen k\u00f6nnen um bis zu 180\u2019000 Franken abweichen.<\/li>\r\n<li>St\u00e4rkere Provisionsanreize gingen mit 120\u2019461 Franken mehr Verkaufspreis einher.<\/li>\r\n<\/ul>\r\n","bild_im_grid":false,"gallerie":"","newsim":"4436"},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"Jusqu\u2019\u00e0 180 000 francs de diff\u00e9rence pour un m\u00eame bien immobilier, soit un \u00e9cart de 120 461 francs selon les conditions de commission. Une \u00e9tude de la ZHAW montre que, lors de la vente d&#039;un logement, ce n&#039;est pas seulement le march\u00e9 qui compte, mais aussi le choix de l&#039;agent immobilier charg\u00e9 du mandat et la mani\u00e8re dont il est r\u00e9mun\u00e9r\u00e9.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"immovestuser\"\/>\n\t<meta name=\"google-site-verification\" content=\"fHJKvgWpZCR2zVBHWfkQeFXC11qieUSff0HGNYfuyLA\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.immo-invest.ch\/fr\/maklerwahl-kann-den-verkaufspreis-brutal-verschieben\/\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"fr_FR\" \/>\n\t\t<meta property=\"og:site_name\" content=\"immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien - Die\u00a0Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Le choix de l\u2019agent immobilier peut faire varier consid\u00e9rablement le prix de vente - immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta property=\"og:description\" content=\"Jusqu\u2019\u00e0 180 000 francs de diff\u00e9rence pour un m\u00eame bien immobilier, soit un \u00e9cart de 120 461 francs selon les conditions de commission. Une \u00e9tude de la ZHAW montre que, lors de la vente d&#039;un logement, ce n&#039;est pas seulement le march\u00e9 qui compte, mais aussi le choix de l&#039;agent immobilier charg\u00e9 du mandat et la mani\u00e8re dont il est r\u00e9mun\u00e9r\u00e9.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.immo-invest.ch\/fr\/maklerwahl-kann-den-verkaufspreis-brutal-verschieben\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/www.immo-invest.ch\/wp-content\/uploads\/2026\/10\/Maklerwahl-kann-den-Verkaufspreis-brutal-verschieben-immo-invest.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/www.immo-invest.ch\/wp-content\/uploads\/2026\/10\/Maklerwahl-kann-den-Verkaufspreis-brutal-verschieben-immo-invest.png\" \/>\n\t\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t\t<meta property=\"og:image:height\" content=\"768\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-10-15T12:00:00+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-10-13T12:44:41+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/people\/Immoinvest\/100077962920504\/\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:site\" content=\"@i\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Le choix de l\u2019agent immobilier peut faire varier consid\u00e9rablement le prix de vente - immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Jusqu\u2019\u00e0 180 000 francs de diff\u00e9rence pour un m\u00eame bien immobilier, soit un \u00e9cart de 120 461 francs selon les conditions de commission. Une \u00e9tude de la ZHAW montre que, lors de la vente d&#039;un logement, ce n&#039;est pas seulement le march\u00e9 qui compte, mais aussi le choix de l&#039;agent immobilier charg\u00e9 du mandat et la mani\u00e8re dont il est r\u00e9mun\u00e9r\u00e9.\" \/>\n\t\t<meta name=\"twitter:creator\" content=\"@i\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/www.immo-invest.ch\/wp-content\/uploads\/2026\/10\/Maklerwahl-kann-den-Verkaufspreis-brutal-verschieben-immo-invest.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BlogPosting\",\"@id\":\"https:\\\/\\\/www.immo-invest.ch\\\/fr\\\/maklerwahl-kann-den-verkaufspreis-brutal-verschieben\\\/#blogposting\",\"name\":\"Le choix de l\\u2019agent immobilier peut faire varier consid\\u00e9rablement le prix de vente - immo!nvest - Die Plattform f\\u00fcr Standorte und Immobilien\",\"headline\":\"Le choix de l&rsquo;agent immobilier 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