The document outlines a set of 30 standalone web applications, each tailored to a specific building trade such as masonry, electrical work, plumbing, painting, carpentry, and roofing. These applications enable users to complete tasks such as reading PDF plans, generating deterministic quantity surveys, providing access to a catalogue of 130 to 250 services per trade, and creating professional A4 quotations. A proprietary license system using HMAC-SHA256 keys ensures secure offline operation, requiring no cloud or API subscriptions. Drawing on 19 years of building industry experience and 16 years of training, the product is designed for artisans, small and medium enterprises (SMEs) in the construction sector, as well as project managers, architects, surveyors, experts, and vocational training organizations. The applications operate locally without the need for servers or remote databases, making them low-maintenance for a future owner. While a domain and presentation website are included, and the applications are fully developed and tested, active sales have not yet been pursued, resulting in no revenue to date. Development costs were internal, with the only recurring expense being the domain registration. The entire package, including source code, intellectual property rights, licensing system, service catalogues, user guides, presentation website, and domain, is available for sale. Post-sale support and knowledge transfer will be provided to ensure a smooth transition for the new owner.