Renaldo brings true cost transparency to construction projects – from the initial concept to the final invoice.
Every contractor's invoice essentially consists of three components: service × quantity × unit price. Renaldo determines all three and links them to your building – services from a comprehensive database, quantities from building and room data, and regionally adjusted contractor prices. This results in a reliable cost estimate early on, which remains up-to-date throughout the entire project.
For new construction and renovations, from single-family homes to multi-family dwellings.
Renaldo WHO IS IT FOR?
• Private homeowners – overview and cost certainty for their own project
• Architects, civil engineers, energy consultants, and renovation advisors – calculation, tendering, and their own fee proposals
• General contractors – calculation and awarding contracts to subcontractors
• Project developers and building contractors – review acquisitions, calculate profitability and margins
• Property owners and asset managers – portfolio, modernization, and operation
YOUR PATH IN THREE PHASES
1. PLAN & CALCULATE
• Activate trades and immediately receive an initial cost estimate
• Import building data: IFC model, EVEBI, Hottgenroth, iSFP
• Costs by cost group (cost groups 200–800), compare variants side by side
• Keep track of the level of detail: rough estimate → reliable → ready for tendering
• Bill of quantities as PDF or CSV, plus a bank-ready financing PDF
• Funding calculator for KfW and BAFA programs
2. TENDER & AWARD
• Tender trades, obtain bids, and Compare
• Tradespeople portal, commissioning and award overview
• Target vs. actual comparison: your own estimate against the actual offer
3. EXECUTION & BILLING
• Construction schedule and tasks along the HOAI service phases
• Construction diary with photos and dictation
• Record defects and inspection points – with photos and AI support
• Plan lists with versions and approvals
• Check invoices and compare them to the budget
FOR DEVELOPERS AND PROPERTY OWNERS
• Site plan with parcel boundaries, standard land value (official, where available), GRZ and GFZ
• Development potential: maximum GFA and possible residential units
• 3D building model that grows with the calculation
• Profitability: margin, residual value, rental yield, debt service
• Exposé and listing export for marketing
• Operation: rent statement and modernization levy
SAM – YOUR AI ASSISTANT
SAM knows your project, answers questions via text or language, and takes over the work: activating trades, checking off tasks, explaining cost increases. This includes AI analyses for existing damage and invoices, as well as configuration directly from expert reports or meeting notes.
TOGETHER ON THE PROJECT
Building owners, architects, energy consultants, surveyors, and tradespeople work on the same project – with clearly defined roles and rights. Invited project participants can contribute free of charge. Every change to the costs is traceable throughout the process.
GET STARTED FOR FREE
Renaldo can be used permanently free of charge. Extended features are available for a fee, depending on the user group. Plans are managed via your Renaldo account – no in-app purchase is necessary.
From cost estimate to invoicing – for new construction and renovation