# Real Estate Management Software | Portfolio to Invoice

> Real estate management software for landlords and administrators: one system for the portfolio record, contracts, meter readings, rebilling and invoicing.

- Source: https://real-estate-management.webservices-engineering.de/
- Language: English (en). Deutsch (de): https://real-estate-management.webservices-engineering.de/de · Magyar (hu): https://real-estate-management.webservices-engineering.de/hu · Română (ro): https://real-estate-management.webservices-engineering.de/ro
- Site: Real Estate Management — The back office for real estate portfolios (Webservices Engineering GmbH)
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## Real estate management software, from the cadastral record to the issued invoice

One system for the portfolio, the contracts, the meters and the money that follows from them. Built by engineers who have done this administration work, for professionals who know the domain.

- Property group, property, housing unit, room — with areas rolling up automatically
- Meters, sub-meters, supplier invoices and configurable allocation keys in one pipeline
- Connected invoicing and accounting — documents issued by API, ledger figures read back over GraphQL
- EU-hosted shared cloud or a dedicated deployment, with an interface in English, German and Romanian

- [See pricing](https://real-estate-management.webservices-engineering.de/pricing)
- [Explore the modules](https://real-estate-management.webservices-engineering.de/solutions)

## What the system covers

Portfolio management is always included. Everything else is a module you switch on when the work requires it.

- **Portfolio management** — Property groups, properties, housing units, rooms and common spaces in one hierarchy, with areas, land registry and cadastral details, documents, tags and a visual graph of the portfolio. [What this module does](https://real-estate-management.webservices-engineering.de/solutions/portfolio-management)
- **Rentals and contracts** — Rental contracts, bailment agreements and early termination contracts, with clients, price entries on any interval, contract and pricing timelines, and reminders before renewal dates. [What this module does](https://real-estate-management.webservices-engineering.de/solutions/rental-contracts)
- **Utility management and rebilling** — Supply contracts, consumption sites, meters and sub-meters, supplier invoices, unmetered positions and allocation formulas. The deepest part of the product, and the reason most customers arrive. [What this module does](https://real-estate-management.webservices-engineering.de/solutions/utility-rebilling)
- **Finance, facility and analysis** — Invoices pushed to your invoicing platform and accounting connector, a technical asset register per building, and revenue and consumption timelines across the portfolio. [What this module does](https://real-estate-management.webservices-engineering.de/solutions/finance-and-accounting)

## A portfolio record that goes down to the room

Most systems stop at the unit. This one keeps going: property group, property, housing unit, then the rooms and common spaces themselves — kitchen, bath room, storage room, gangway, loft, basement, staircase, courtyard, parking lot, land lot.

Areas roll up from rooms to units to properties to groups, so a square-metre allocation key is derived from the record rather than from a spreadsheet somebody maintains by hand.

Land registry, cadastral and topographical details sit on the entity they describe. Housing units are typed — flat, business space, storage space — which is what makes mixed-use portfolios behave sensibly downstream.

- [Inside portfolio management](https://real-estate-management.webservices-engineering.de/solutions/portfolio-management)

## Contracts, clients and the dates that matter

Rental contracts, bailment agreements for gratuitous use and early termination contracts are separate document types because they behave differently, not because the form looks different.

Price entries are normalised across interval units and counts, so a monthly rent, a quarterly charge and an annual fee can be compared and charted without conversion arithmetic in a side file.

Reminders go out before contract end and renewal deadlines, with an audit trail of what was sent and to whom. An account can hold several legal entities, so contracts stay attached to the landlord company that owns them.

- [Inside rental contracts](https://real-estate-management.webservices-engineering.de/solutions/rental-contracts)

## How a month actually runs

Each step leaves a record the next step reads, so nothing is re-keyed and every figure keeps its origin.

1. **Take the readings** — Walk the building with the batch reading screen and enter meters and sub-meters in sequence. Readings land on their consumption site, timestamped and kept as a history.
2. **Record the supplier invoice** — Enter the supplier invoice and the supplier meter readings behind it. One document covering several utilities or periods is recorded as a compound supplier invoice.
3. **Allocate the cost** — Rebilling entries group consumption by utility type and rebilling mode, then apply the allocation key: per square metre, per person, per unit, per consumption share, or a custom formula.
4. **Preview before anyone sees it** — The rebilling dashboard shows every entry with its inputs, and the invoice preview shows what each client would receive. Corrections happen here, not after the document has left.
5. **Issue in a batch** — Approved entries become rebilling invoices and are issued together. Each client can also receive a branded PDF rebilling sheet showing how every figure was derived.
6. **Post to accounting** — Documents go out through the invoicing platform integration and into the accounting connector, under the credentials of the person who is supposed to have issued them.

- [How the rebilling engine works](https://real-estate-management.webservices-engineering.de/solutions/utility-rebilling)

## What the rebilling engine handles

Cost reallocation is where portfolio administration usually collapses into spreadsheets. This is the part of the product with the most detail in it.

- **Suppliers, supply contracts, price schedules** — utility prices over time, so a tariff change mid-period is a data point rather than a manual recalculation
- **Meters, sub-meters, consumption sites** — sub-metered consumption is deducted from the main meter instead of being charged twice
- **Compound supplier invoices** — a supplier document covering several utilities or periods is recorded as it arrived, then decomposed inside the system
- **Unmetered consumption positions** — standing charges and flat components are first-class positions, so a statement reconciles to the supplier invoice rather than nearly reconciling
- **Configurable allocation formulas** — when a building has an agreement that standard keys cannot express, you write the expression instead of leaving the system
- **Per-client rebilling sheet** — a branded PDF showing total cost, allocation key, share and resulting amount — it answers the tenant's question before the tenant asks it

## Invoicing and accounting, connected

The system generates the documents and hands them to the platforms responsible for them.

- **Invoicing platform connector** (Live) — Invoices and rebilling invoices are issued through the connected invoicing platform, including document types, numbering scheme prefixes and suffixes, and VAT on payment.
- **Accounting connector** (Live) — Accounting data moves over GraphQL, authenticated with client SSL certificates rather than a shared password pasted into a settings field.
- **Per-user platform credentials** — External credentials are held per user, so each document is issued under the account of the person entitled to issue it and the audit trail stays truthful.
- **Built to take more connectors** (On request) — The integration layer keeps invoicing apps and accounting connectors separate from the domain, so further platforms are added as connectors, not as a second product.

## Two integrations exist today

One invoicing platform and one accounting system, both in production. We would rather describe the two that work than show a wall of logos that do not.

- [See the integration list](https://real-estate-management.webservices-engineering.de/integrations)

## Technical assets and portfolio analysis

The facility management module is the newest area and is expanding. Reporting sits across everything else.

- **Technical asset register** — Typed assets per building — elevator, heating system, heat pump, photovoltaic and solar thermal, ventilation, fire safety, access control, roof, facade — each with its own documents. [What this module does](https://real-estate-management.webservices-engineering.de/solutions/facility-management)
- **Asset connections** — Assets are related to one another, so it is recorded which system feeds which. A heat pump and what it supplies are not two unrelated rows in an inventory.
- **Service partners and price lists** — Maintenance contractors are kept with the price lists you agreed with them, so the cost side of a maintenance conversation is on file rather than in an old email.
- **Revenue and consumption analysis** — Revenue timelines globally, per property group, per legal entity or both, alongside meter-reading and consumption timelines and investment calculations. [What this module does](https://real-estate-management.webservices-engineering.de/solutions/reporting-and-analytics)

## Public Cloud or Private Cloud

The same software, two ways of running it. Portfolios with their own compliance or branding requirements take a dedicated deployment.

|   | Public Cloud | Private Cloud |
| --- | --- | --- |
| Hosting | Shared, EU-hosted SaaS | Dedicated deployment in a secure EU data centre |
| Resources | Shared platform resources | Dedicated resources, including backup and failover infrastructure |
| Backups | Regular platform backups | Database and storage backups mirrored to your own site or office |
| Availability | Standard platform operation | High availability and redundancy, 24/7 monitoring |
| Support | Best-effort support and consulting | SLA: max 4h intervention in working hours, 24h outside them |
| Branding | Logo, colours and PDF font sizes per account | Full white labelling |

> All prices exclude VAT. The full specification is on the Private Cloud page.

## What it costs

Portfolio management is the base plan. Modules are flat-rated per month, and growth beyond Extended is metered by what you actually hold.

| Plan | EUR/month | Users | Properties | Housing units | Rooms and common spaces | Document storage |
| --- | --- | --- | --- | --- | --- | --- |
| Standard | €49 | 3 | 10 | 50 | 200 | 25 GB |
| Extended | €89 | 10 | 50 | 250 | 1000 | 100 GB |

- **Standard** — For a single portfolio that has outgrown the spreadsheet.
- **Extended** — For managers running several buildings and legal entities.

All prices are net and exclude VAT.

> Optional modules are priced separately, and there are published rates for portfolios larger than the Extended plan. The full breakdown, with an estimator, is on the pricing page.

## Asked before every evaluation

### What is real estate management software?

It is back-office software for administering property you own or manage, rather than marketing it. It holds the portfolio record — parcels, properties, units, rooms and areas — with tenants and contracts, meter readings and utility cost reallocation, and the invoices that follow. A listings portal finds occupants; this system administers them once they are in the building.

### Can it produce an ancillary cost statement and allocate heating costs?

Yes. Supplier invoices, supplier meter readings, tenant meters and sub-meters and unmetered standing charges feed rebilling entries, which are split by an allocation key: per square metre, per person, per unit, per consumption share, or a custom formula. Each client can receive a branded PDF rebilling sheet showing how every figure was derived.

### Why does signing in need a Workspace ID?

Signing in takes three things: a Workspace ID, an email address and a password. The Workspace ID identifies your account and isolates its data. Two customers can use the same email domain without collision, and a user's credentials are only ever valid inside their own workspace, never across the platform.

### Do I have to buy the whole system?

No. Portfolio management is the base plan. Rentals & Contracts, Utility Billing / Cost Reallocation, Accounting & Invoicing Integration, and Investment & Business Analyses are optional modules you add when you need them. All prices exclude VAT.

### Which integrations exist today?

Two. Invoices and rebilling invoices are issued through the connected invoicing platform, with document types, numbering prefixes and suffixes and VAT on payment supported. Booked figures come back through the accounting connector over GraphQL, authenticated with client SSL certificates. The integration layer is designed to take further connectors.

- [Read the full FAQ](https://real-estate-management.webservices-engineering.de/faq)

## See whether it fits your portfolio

Look at the plans and the module list, or create a workspace and work through one of your own buildings with us. Onboarding includes four hours of on-site training.

> No payment card is collected when you create a workspace.

- [See pricing](https://real-estate-management.webservices-engineering.de/pricing)
- [Create a workspace](https://real-estate-management.webservices-engineering.de/signup)