This　research　aims　to　develop　an　initiative　modular　unglazed　Solar　Thermal　Facade　(STF)　concept　initially　for　hot　water　generation　to　facilitate　the　integration　of　solar　energy　with　buildings.　The　new　STF　concept　is　simple　structure,　low　cost,　and　aesthetically　appealing　with　easy　installation　but　is　expected　to　achieve　the　equivalent　thermal　efficiency　as　the　conventional　STFs.　It　delivered　alternative　design　in　terms　of　material,　colour,　texture,　shape,　size,　architectural　design,　installation　method,　array　connection,　hypothetical　system　application,　and　solar　coverage.　Two　common　design　variants　i.e.　(a)　the　STF　cladding　system　and　(b)　the　prefabricated　STF　wall　system　were　described　respectively　for　existing　and　new　low-rise　building　typologies.　Interaction　of　inclination,　orientation,　and　insolation　were　discussed　for　the　optimum　STF　position　on　the　building.　Four　currently　available　methods　for　installation　of　such　STF　with　buildings　were　summarized　and　three　typical　array　connection　methods　were　identified.　The　decentralized　connection　was　recommended　for　different　types　of　STF　hot　water　systems.　It　is　customary　to　design　for　a　solar　coverage　of　50　to　60　percent　for　water　heating　in　detached　houses;　in　apartment　buildings　30　to　40　percent　are　more　commonly　assumed.　The　concept　design　in　this　paper　hereby　illustrates　the　precedence　for　the　hypothetical　function　by　the　creation　of　new　ideas　and　also　forms　up　the　physical　structure　or　operating　principle　for　the　investigations　in　near　future.　(C)　2016　The　Authors.　Published　by　Elsevier　Ltd