Quellenangaben für die verwendeten Bilder und Grafiken:

© iStock.com/Kwangmoozaa 1041465228

© iStock.com/taa22 1064157320

© iStock.com/Urupong 1091547286

© iStock.com/Geber86 1128376988

© iStock.com/ThitareeSarmkasat 1134367625

© iStock.com/fizkes 1134312181

© iStock.com/porcorex 1135582902

© iStock.com/Fokusiert 1148812518

© iStock.com/marchmeena29 1162052620

© iStock.com/Bojan89 1166391545

© iStock.com/scyther5 1189131263

© iStock.com/nullplus 532239105

© iStock.com/JamesBrey 535469354

© iStock.com/wellphoto 501259042

© iStock.com/Imgorthand 535420492

© iStock.com/Bogdanhoda 622800884

© iStock.com/sturti 804627288

© iStock.com/vm 810293400

© iStock.com/marchmeena29 870307396

© iStock.com/KatarzynaBialasiewicz 901505518

© iStock.com/marchmeena29 932278678

© iStock.com/courtneyk 1047855674

© iStock.com/diego_cervo 1087578414

© iStock.com/Kritchanut 915688444

© iStock.com/GregorBister 530746094

© iStock.com/monkeybusinessimages 546201764

© iStock.com/tadamichi 1140300365

© iStock.com/Urupong 1201792299

© iStock.com/sestovic 517689092

© iStock.com/Kerkez 1132329631

© iStock.com/evgenyatamanenko 1147132084

© iStock.com/AndreyPopov 921356732

© iStock.com/peterschreiber.media 1157722971

© iStock.com/Beeldbewerking 478812174

© iStock.com/andresr 491579060

© iStock.com/Cecilie_Arcurs 939722468

© Privat

© Fotograf Paul Esser

© Andreas Scheffel, AS-Fotografie https://asfoto.de/

© Fotografin Bettina Osswald http://www.photographie-osswald.de/

© Dr. med. dent. Carina Teichmann

Visualisierungen und Animationen von Ein- und Mehrfamilienhäusern: © archprodesign – High-End Architekturvisualisierungen http://www.archprodesign.de/

Stadtteil-Fotografien Leverkusen: © Chris Feith Photography http://www.chris-feith.de/

Stadtteil-Fotografien Willich: © Chris Feith Photography http://www.chris-feith.de/

Stadtteil-Fotografien Langenfeld: © Chris Feith Photography http://www.chris-feith.de/

Stadtteil-Fotografien Monheim: © Fabian Riediger https://www.fabianriediger.de/

alle weiteren Abbildungen: © PAESCHKE Unternehmensgruppe