regex101: PCRE (Legacy) Match Workspace

Regular Expression

(?:
    " : \g<object> ,
  |
    \A
    { "objekte" :
        {
            (?> \g<keyval> (?: , \g<keyval> )*? , "objekte" : | "objekte" : ) {
            
)
(?:
    \g<string> : {
    (?> \g<keyval> (?: , \g<keyval> )*? , "land" : | "land" : ) (?!"ESP") \g<value>
    (?: , \g<keyval> )* } ,

)*+

" \K [^"\\]*+ (?:\\.["\\]*)*+ 

(?(DEFINE)
    (?<number> -?(?:[1-9][0-9]*(?:\.[0-9]+)?|0(?:\.[0-9]+)?)(?:[eE][-+]?[0-9]+)? )
    (?<string> " [^"\\]*+ (?:\\.[^"\\]*)*+ " )

    (?<list> \[ (?: \g<value> (?: , \g<value> )*+ )?+ ] )
    (?<object> { (?: \g<keyval> (?: , \g<keyval> )*+ )?+ } )

    (?<value> \g<string> | \g<object> | \g<list> | \g<number> | null | true | false )
    (?<keyval> \g<string> : \g<value> )
)

New

{"objekte":{"treffer":"211","vermarktung":"kauf","objekte":{"NC065":{"objekttitel":"Four luxurious apartments with a modern, alpine charm","titeldetails":[["Property-No.","NC065"],["Living area","88 m²"],["Utility area","9 m²"],["Terraces","13 m²"],["Bedroom(s)",2]],"banderole":"new","land":"AUT","ort":"Kirchberg","art":"wohnung","preis":"675,000 \u20ac","video":"","tour":null,"intern_preis":"675,000 \u20ac","meta":{"title":"Four luxurious apartments with a modern, alpine charm - Private Residences","keywords":"Apartment,Eigentumswohnung,Kirchberg","description":"Eigentumswohnung for sale in Kirchberg, presents by Private Residences - Four luxurious apartments with a modern, alpine charm"},"titelbild":{"card":"http:\/\/www.private-residences.net\/immo-pics\/search_2011\/7947\/Foto_104701.jpg","detail":"http:\/\/www.private-residences.net\/immo-pics\/1680w\/7947\/Foto_104701.jpg"},"erstellt_am":"2017-08-07 09:33:48"},"ER433":{"objekttitel":"Four luxurious apartments with a modern, alpin

Extraction

{"objekte":{"treffer":"211","vermarktung":"kauf","objekte":{"NC065":{"objekttitel":"Four luxurious apartments with a modern, alpine charm","titeldetails":[["Property-No.","NC065"],["Living area","88 m²"],["Utility area","9 m²"],["Terraces","13 m²"],["Bedroom(s)",2]],"banderole":"new","land":"AUT","ort":"Kirchberg","art":"wohnung","preis":"675,000 \u20ac","video":"","tour":null,"intern_preis":"675,000 \u20ac","meta":{"title":"Four luxurious apartments with a modern, alpine charm - Private Residences","keywords":"Apartment,Eigentumswohnung,Kirchberg","description":"Eigentumswohnung for sale in Kirchberg, presents by Private Residences - Four luxurious apartments with a modern, alpine charm"},"titelbild":{"card":"http:\/\/www.private-residences.net\/immo-pics\/search_2011\/7947\/Foto_104701.jpg","detail":"http:\/\/www.private-residences.net\/immo-pics\/1680w\/7947\/Foto_104701.jpg"},"erstellt_am":"2017-08-07 09:33:48"},"ER433":{"objekttitel":"Four luxurious apartments with a modern, alpin