Your portfolio — valued, operated, ready to report.
Valuation, tenant management, maintenance and ESG on one data core – from a single apartment block to a whole portfolio, every residential unit with its own record.
One truth for holding, upgrading and selling – instead of islands of spreadsheets.
60 days free · no credit card · GDPR-compliant, hosted in Germany
Built by practitioners: 10 years of retrofit project management plus 30+ years of construction expertise.
Hold, upgrade, sell – all from the same data.
A transparent portfolio
Assets, residential units, rents and status across the whole portfolio – an end to scattered spreadsheets.
Ready for ESG reporting
Energy baseline, CO₂ and retrofit pathway per asset – the basis for ESG reporting and retrofit roadmaps.
Upgrades, properly costed
Cost measures with real contractor prices, including the § 559 modernisation rent uplift under German tenancy law and the resulting increase in value.
Value, cost, report — from one model.
The existing stock is at the centre, but an upgrade is costed with exactly the same real prices as a new-build scheme.
From ESG baseline to a costed retrofit
Rating, measure, new class.
Energy class and CO₂ per asset — then cost an upgrade at real prices and see which ESG class comes out of it, and what rent uplift § 559 allows.
Costing without a quantity take-off
Quantities from the building, prices from the market.
You choose the work item. The quantity comes from your building and room data, the price from real regional contractor rates. No counting windows, no calculating wall areas.
The bill of quantities you never have to write
Straight from the configuration into the tender.
Your configuration becomes a tender-ready bill of quantities across every trade — with long descriptions, quantities and unit prices. From there straight into the local search and the online request.
From rent roll to exit – all on the same asset.
Every asset and every key figure at a glance.
Assets, residential units, investment volume and status across the whole portfolio – sortable and comparable. The project-status timeline shows, per asset, whether it is being held, upgraded or marketed.
- Assets, units & key figures portfolio-wide
- Project-status timeline per asset
- Sort & filter by investment volume, € per unit …
A rent roll per unit – rents, terms, vacancy.
One tenancy per residential unit: status, contracted rent, deposit, term and contact. Out of that come rent-roll figures such as vacancy, contracted annual rent and average € per m² – with no side spreadsheet.
- One tenancy per residential unit
- Vacancy, contracted annual rent, average € per m²
- The basis for valuation & sale
Maintenance under control, running costs allocated.
Maintenance tasks with due date, interval and cost per asset – with automatic follow-up when one is completed, overdue items first. Costs that can be passed on are flagged; the running-cost allocation distributes the annual costs across the units by floor-area key.
- Maintenance with due date, interval & cost – automatic follow-up
- Flag costs that can be passed on to tenants
- Running-cost allocation by floor-area key
Energy-rated – and ready to report.
A score and traffic light built from energy class, CO₂ per m²·a and final energy – with a baseline-versus-retrofitted comparison. So you can see, per asset, where the stock stands and which retrofit pathway makes it reportable.
- Score & traffic light per asset
- CO₂ per m²·a & final energy
- Baseline vs. retrofitted comparison & retrofit pathway
Measures at real prices – rent uplift included.
Cost modernisation and retrofit measures across every trade – with real contractor prices, linked directly to the building data. Including the maximum modernisation rent uplift under § 559 of the German Civil Code and the increase in value you can expect.
- Costing across every trade, at real prices
- § 559 modernisation rent uplift & statutory cap
- Funding & increase in value taken into account
Costing, tendering & sale belong to Renaldo Developer – added on to Operate as a module (both can run on one organisation at the same time).
Sell straight out of the portfolio.
When an asset goes to market: a brochure per residential unit with AI-written marketing copy, a shareable data room for buyers and lenders, and a listing export with an automatically pre-filled asking price – all from the same asset data. Sale belongs to the Renaldo Developer module and can be added to Operate at any time.
- Unit brochure with AI marketing copy & a shareable data room
- Listing export with an automatically pre-filled asking price
- Financing bridge (LTV, DSCR, cash flow)
Tools for the whole portfolio.
SAM – AI assistant
Technical questions on German building-energy law, funding, upgrades and standards – in the context of your asset.
Team & roles – collaborative
Property managers, energy consultants, trades and lenders on the same asset – with roles and permissions, and no per-head surcharge.
Funding module
Match and schedule KfW/BAFA programmes for upgrades and energy retrofits in the existing stock.
Data room & document storage
Drawings, certificates, contracts and correspondence kept audit-proof per asset – shareable with buyers and lenders.
AI photo staging
Photorealistic before/after visualisations of the existing stock, for marketing and re-letting.
White-label export
Reports and brochures in your own house layout – for owners, boards, banks and buyers.
The entire lifecycle of a residential building – in one data core.
From acquisition and development potential through costing, tendering and construction to operation and sale. New build and retrofit, from single-family homes to apartment blocks – every work item linked directly to the building and room data.
Costing across every trade – with ready-made bills of quantities and real contractor prices. Every work item linked directly to the building & room data.
Acquisition
- Development potential (plot ratio / site coverage)
- Standard land value (BORIS) & cadastral map
- 3D building model
- Feasibility (margin, GDV, residual value)
Design & costing
- Building import (IFC)
- Drawing register
- Energy consulting module
- Building profile
- Funding module
- Financing calculator
- Material selection
- Apartment-block structure
- Neubau
Tendering & award
- Contractor portal
- Online contract award
- Bids + AI comparison
- Contractor address book
- Tendering-software / CSV export
Construction & handover
- Construction schedule & dates
- Site diary & AI weekly report
- Defect management
- Site supervision
- AI invoice checking
Operation & sale
- Tenant management
- Maintenance & billing
- ESG rating
- Unit brochure & data room
- Financing bridge
- Listing export
Renaldo Operate – priced per residential unit, not by an expensive base fee.
Operate Start is the free platform base. To operate actively you unlock Operate Scale – €9 net per residential unit per month. No base fee, no project fee.