[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"broker-data-isaak-makelaardij-og":3,"broker-profile-isaak-makelaardij-og":167,"broker-reviews-isaak-makelaardij-og":226},{"broker_name":4,"broker_slug":5,"url":6,"markdown_url":7,"html_url":8,"html_location_url":9,"location_url":10,"city_name":11,"city_slug":12,"province_name":13,"province_slug":14,"total_houses_sold":15,"avg_house_price":16,"avg_house_price_raw":17,"median_price":18,"houses_sold_last_year":15,"houses_sold_last_30_days":19,"houses_sold_last_3_months":20,"houses_sold_last_6_months":21,"houses_sold_last_12_months":15,"avg_days_on_market":22,"broker_cost_min":23,"broker_cost_max":24,"buying_agent_min":25,"buying_agent_max":26,"sales_frequency":27,"price_comparison":28,"price_segment":29,"sales_comparison":30,"total_reviews":19,"rating":19,"rating_display":31,"city_median_price":32,"city_median_days_on_market":33,"city_total_houses":34,"city_active_brokers":35,"lastmod":36,"top_5_locations":37,"property_types_sold":47,"similar_brokers":109},"ISAAK makelaardij o.g. B.V.","isaak-makelaardij-og","\u002Fmakelaar\u002Fisaak-makelaardij-og\u002F","[ISAAK makelaardij o.g. B.V.]( \u002Fmakelaar\u002Fisaak-makelaardij-og\u002F )","\u003Ca href=\"\u002Fmakelaar\u002Fisaak-makelaardij-og\u002F\">ISAAK makelaardij o.g. B.V.\u003C\u002Fa>","\u003Ca href=\"\u002Fmakelaars\u002Fnoord-holland\u002Famsterdam\u002F\">Amsterdam\u003C\u002Fa>","\u002Fmakelaars\u002Fnoord-holland\u002Famsterdam\u002F","Amsterdam","amsterdam","Noord-Holland","noord-holland",30,"€ 654.000",654000,"€ 637.500",0,6,15,36,"€ 6.539","€ 8.501","€ 3.270","€ 4.904","gerichte verkoper","hogere prijsklasse","hogere segment","meer woningen","–",525000,32,9270,613,"2026-09-10",[38,42],{"id":39,"name":11,"avg_price":40,"transactions_count":41,"city_slug":12,"province_slug":14},"","€ 660.103",29,{"id":39,"name":43,"avg_price":44,"transactions_count":45,"city_slug":46,"province_slug":14},"Castricum","€ 475.000",1,"castricum",[48,55,62,68,73,79,84,89,94,99,104],{"property_category":49,"property_type":50,"count":51,"avg_price":52,"price_per_m2":53,"avg_days_on_market":54},"Appartement","Bovenwoning",11,522273,7529,60,{"property_category":56,"property_type":57,"count":58,"avg_price":59,"price_per_m2":60,"avg_days_on_market":61},"Tussenwoning","Eengezinswoning",4,780000,6710,76,{"property_category":49,"property_type":63,"count":64,"avg_price":65,"price_per_m2":66,"avg_days_on_market":67},"Galerijflat",3,631667,7178,19,{"property_category":49,"property_type":69,"count":64,"avg_price":70,"price_per_m2":71,"avg_days_on_market":72},"Portiekflat",449333,6774,26,{"property_category":49,"property_type":74,"count":75,"avg_price":76,"price_per_m2":77,"avg_days_on_market":78},"Beneden + bovenwoning",2,1012500,7642,46,{"property_category":49,"property_type":80,"count":75,"avg_price":81,"price_per_m2":82,"avg_days_on_market":83},"Maisonnette",742000,6480,20,{"property_category":85,"property_type":57,"count":45,"avg_price":86,"price_per_m2":87,"avg_days_on_market":88},"Eindwoning",895000,8524,43,{"property_category":90,"property_type":91,"count":45,"avg_price":92,"price_per_m2":91,"avg_days_on_market":93},"Onbekend",null,31999,82,{"property_category":49,"property_type":95,"count":45,"avg_price":96,"price_per_m2":97,"avg_days_on_market":98},"Tussenverdieping",625000,8562,25,{"property_category":49,"property_type":100,"count":45,"avg_price":101,"price_per_m2":102,"avg_days_on_market":103},"Dubbel benedenhuis",1650000,10185,158,{"property_category":105,"property_type":106,"count":45,"avg_price":107,"price_per_m2":108,"avg_days_on_market":88},"Geschakelde woning","Grachtenpand",799000,8411,[110,123,135,144,156],{"broker_name":111,"broker_slug":112,"url":113,"shared_cities":75,"shared_city_names":114,"total_sales":115,"avg_price":116,"avg_price_raw":117,"avg_days_on_market":118,"rate_min":19,"rate_max":19,"rate_display":119,"total_reviews":120,"rating":121,"rating_display":122},"Max de Makelaer Amsterdam","max-de-makelaer-amsterdam","\u002Fmakelaar\u002Fmax-de-makelaer-amsterdam\u002F",[11,43],34,"€ 523.000",523000,24,"0% - 0%",31,9.8,"9.8 ★",{"broker_name":124,"broker_slug":125,"url":126,"shared_cities":75,"shared_city_names":127,"total_sales":128,"avg_price":129,"avg_price_raw":130,"avg_days_on_market":131,"rate_min":19,"rate_max":19,"rate_display":119,"total_reviews":132,"rating":133,"rating_display":134},"Makelaars van Amsterdam","makelaars-van-amsterdam","\u002Fmakelaar\u002Fmakelaars-van-amsterdam\u002F",[11,43],61,"€ 576.000",576000,48,68,9.5,"9.5 ★",{"broker_name":136,"broker_slug":137,"url":138,"shared_cities":75,"shared_city_names":139,"total_sales":140,"avg_price":141,"avg_price_raw":142,"avg_days_on_market":98,"rate_min":19,"rate_max":19,"rate_display":119,"total_reviews":143,"rating":133,"rating_display":134},"VanHuyse - Partner in Wonen","vanhuyse-partner-in-wonen","\u002Fmakelaar\u002Fvanhuyse-partner-in-wonen\u002F",[11,43],218,"€ 496.000",496000,203,{"broker_name":145,"broker_slug":146,"url":147,"shared_cities":75,"shared_city_names":148,"total_sales":149,"avg_price":150,"avg_price_raw":151,"avg_days_on_market":152,"rate_min":19,"rate_max":19,"rate_display":119,"total_reviews":153,"rating":154,"rating_display":155},"VLIEG Makelaars  OG","vlieg-makelaars-og","\u002Fmakelaar\u002Fvlieg-makelaars-og\u002F",[11,43],280,"€ 513.000",513000,38,384,9.43,"9.4 ★",{"broker_name":157,"broker_slug":158,"url":159,"shared_cities":75,"shared_city_names":160,"total_sales":161,"avg_price":162,"avg_price_raw":163,"avg_days_on_market":164,"rate_min":19,"rate_max":19,"rate_display":119,"total_reviews":165,"rating":166,"rating_display":134},"Rietveld Makelaardij o.g.","rietveld-makelaardij-og","\u002Fmakelaar\u002Frietveld-makelaardij-og\u002F",[11,43],44,"€ 569.000",569000,28,117,9.51,{"broker_slug":5,"website_summary":91,"review_summary":168,"positive_tags":169,"negative_tags":175,"employees":179,"specializations":186,"service_type":189,"target_audience":190,"typical_client":193,"neighborhoods":194,"ratings_distribution":195,"avg_rating":197,"total_reviews":198,"location_count":45,"locations":199,"top_reviews":207,"last_review_date":217},"ISAAK makelaardij onderscheidt zich door medewerkers die persoonlijke aandacht en duidelijke communicatie bieden. Silvan Telgenkamp en Marvin worden door klanten geroemd voor hun professionele begeleiding, marktkennis en vermogen om stress uit het proces te nemen. De makelaar werkt aan zowel aan- als verkooptrajecten. Een terugkerend kritiekpunt in meerdere reviews is de praktijk om huizen opzettelijk onder de marktwaarde in te brengen om veel biedingen uit te lokken, wat leidt tot ondoorzichtige veilingprocessen en ongelijke behandeling van bieders. Dit roept vragen op over eerlijkheid en transparantie in de onderhandelingsfase.",[170,171,172,173,174],"Persoonlijke aandacht van makelaar","Duidelijke communicatie","Marktkennis","Flexibel bij bezichtigingen","Stressvrij proces",[176,177,178],"Ondoorzichtige veilingpraktijken","Oneerlijke biedingsprocedure","Voorkeur voor verkoper bij aankoop",[180,183],{"name":181,"highlight":182},"Silvan Telgenkamp","Vereenvoudigt het proces met duidelijke uitleg en flexibiliteit",{"name":184,"highlight":185},"Marvin","Professionele begeleiding met marktkennis en vriendelijke instelling",[187,188],"appartementen","woningverkoop","beide",[191,192],"huizenkopersverkoopers","eerste woning kopers","Huizenkopersverkoopers die waarde hechten aan persoonlijke begeleiding en duidelijke communicatie",[],{"1":58,"2":45,"5":196},9,3.64,14,[200],{"name":201,"address":202,"website":203,"phone":204,"rating":205,"review_count":206},"Isaak Makelaardij O G BV","C. van Eesterenlaan 1, 1019 JN Amsterdam, Nederland","http:\u002F\u002Fwww.isaak.nl\u002F","+31 20 620 2022",3.5,13,[208,214,218,222],{"reviewer_name":209,"rating":210,"review_text":211,"review_date":212,"location_id":213},"kevin mckellar",5,"Silvan Telgenkamp was absoluut fantastisch. Vereenvoudigde het proces met zulke duidelijke uitleg dat hij alle stress wegnam. En leverde een geweldige prijs. Ik kan hem niet genoeg aanbevelen.... Silvan Telgenkamp was absolutely fantastic. Simplified the process with such clear explanations that he took take away all the stress. And delivered a great price. I can’t recommend him enough","2025-03-05",558,{"reviewer_name":215,"rating":210,"review_text":216,"review_date":217,"location_id":213},"Hjalmr Vogelesang","Marvin heeft ons uitstekend begeleid bij zowel verhuur als verkoop van onze woning. Zijn sterke netwerk en marktkennis zorgden voor een vlotte afhandeling. De communicatie was steeds helder en snel, en Marvin nam de tijd voor persoonlijke aandacht. Een betrouwbare en betrokken makelaar die we van harte aanbevelen!","2025-08-31",{"reviewer_name":219,"rating":210,"review_text":220,"review_date":221,"location_id":213},"Inge Pieters","Heel dankbaar voor Marvin’s professionele begeleiding tijdens de verkoop van mn appartement. Met zijn marktkennis, positieve en vriendelijke instelling was het een plezier om met hem samen te werken.","2025-05-24",{"reviewer_name":223,"rating":210,"review_text":224,"review_date":225,"location_id":213},"Otto Nooitgedacht","Wij kochten ons huis bij Isaak. Silvan was flexibel met extra bezichtigingen, dacht mee met ons en was een erg fijne partij om mee te werken. Mochten we het huis ooit verkopen kloppen we vast weer bij jullie aan. Bedankt 🙏","2024-12-12",{"locations":227},[228],{"location_id":213,"title":201,"address":202,"reviews":229},[230,232,235,236,238,240],{"reviewer_name":215,"rating":210,"review_text":216,"review_date":231},"2025-08-31T06:58:50.866+00:00",{"reviewer_name":233,"rating":210,"review_text":220,"review_date":234},"Inge","2025-05-24T18:14:01.734+00:00",{"reviewer_name":219,"rating":210,"review_text":220,"review_date":234},{"reviewer_name":209,"rating":210,"review_text":211,"review_date":237},"2025-03-05T08:47:03.898+00:00",{"reviewer_name":223,"rating":210,"review_text":224,"review_date":239},"2024-12-12T10:16:40.27+00:00",{"reviewer_name":241,"rating":210,"review_text":242,"review_date":243},"Peter Michilsen","Vriendelijke hulp bij vragen","2020-09-20T15:25:23.667+00:00"]