Map tool # Cadastral map of Aachen Search cadastral parcels in Aachen, inspect property boundaries and read off parcel numbers — right on the map, free and without signing up. Data source: Nordrhein-Westfalen. [ ← All regions ](https://schwarzplan.eu/flurkarte/) Nordrhein-Westfalen · Cadastral parcels · Open geodata = 0 ? 'kataster-treffer-' + aktiv : null" :aria-busy="loading ? 'true' : 'false'" x-on:input="merkeEingabe()" x-on:keydown.enter.prevent="aktiv >= 0 ? goto(results[aktiv]) : search()" x-on:keydown.arrow-down.prevent="bewege(1)" x-on:keydown.arrow-up.prevent="bewege(-1)" x-on:keydown.escape="schliessen()" placeholder="e.g. Musterstraße 12, Hamburg" class="w-full min-w-0 bg-transparent border-0 px-3 py-3 text-base text-black placeholder:text-gray-400 focus:outline-none focus:ring-0" /> Extract from the cadastral map Uncertified — not an official site plan under German building law. The official site plan for a building application is produced by a publicly appointed surveyor. [ What you need for it ](https://schwarzplan.eu/lageplan-bauantrag/) Non-binding orientation — not an official cadastral extract ### Data sources & licences Data sources in this map extent Base map: © OpenStreetMap contributors, © OpenFreeMap Nordrhein-Westfalen ## Cadastral parcels in the Aachen map extent Cadastral parcels 408,984 Cadastral districts 155 Cadastral sectors 2,408 Median size 590 m² Average size 3,399 m² Calculated across roughly 2,461 km² of map extent from the official German cadastre (Liegenschaftskataster). The figures refer to the extent shown, not to the city's administrative area. As of 2026-08-14. How a parcel identifier (Flurstückskennzeichen) is built 05 State 4171 Cadastral district 001 Cadastral section 65 Numerator Example from Aachen: 05417100100065. The first two digits identify the federal state, followed by the cadastral district (Gemarkung), the cadastral sector (Flur) and the parcel numerator. [All cadastral maps in Nordrhein-Westfalen](https://schwarzplan.eu/flurkarte/nordrhein-westfalen/) · Get the official extract from [TIM-online NRW](https://www.tim-online.nrw.de/). From the shop ## Plans for Aachen - Nordrhine-Westphalia [Aachen](https://schwarzplan.eu/en/figure-ground-plan-site-plan-aachen/)15,00 € Original price was: 15,00 €.10,00 €Current price is: 10,00 €. incl. VAT Terminology ## Flurkarte, Liegenschaftskarte, Katasterplan — what is the difference? None. It is the same map. Which name it carries depends on the federal state, the authority and how old the usage is. The only real distinction is between the map itself and the official document produced from it. | Term | What it means | Where the term is official | |---|---|---| | Liegenschaftskarte | The official map of the German land register (Liegenschaftskataster), showing parcel boundaries, parcel numbers and buildings. | The current technical term nationwide, introduced with ALKIS. | | Cadastral map | The same map. The older name, still in everyday use. | Still the official product name of the state survey authority in Bavaria (Digitale Flurkarte, DFK) and North Rhine-Westphalia (Amtliche Flurkarte NRW). | | Katasterplan, Katasterkarte, Flurplan | Again, the same map. | Nowhere — colloquial, but widely used. | | Katasterauszug, Auszug aus der Liegenschaftskarte | Not the map, but the official document derived from it — sealed, chargeable and legally binding. | Nationwide. Only the cadastral office issues it. | | ALKIS | Not a map name but the system behind it. It merged the former cadastral map (ALK) and the cadastral register (ALB). | Nationwide, introduced in every federal state. | For Aachen the data is maintained by TIM-online NRW. Whatever the map is called there changes nothing about its content — or about the fact that you can view it above without signing up. What it is good for ## When is the online map enough — and when do you need the official extract? This map is enough - Looking up a parcel number or cadastral district - Estimating a plot's shape and its neighbouring boundaries - Preparing for a purchase or an estate agent meeting - A first assessment before dealing with the authorities Official extract required - Building applications and submission documents - Notary appointments, purchase contracts, the land register - Boundary disputes and surveying - Anything requiring legally binding documentation For Aachen, official extracts are issued solely by TIM-online NRW — the responsible body is the cadastral authority of your district or independent city. Depending on the format, fees are typically in the low double digits (euros). [ Site Plan for the Building Application → ](https://schwarzplan.eu/lageplan-bauantrag/) [ Bebauungsplan: what may be built? → ](https://schwarzplan.eu/en/german-zoning-plans/) Taking it further ## Site plan of Aachen for design work and building applications The cadastral map shows you the plot in Aachen. For design work, presentations and CAD you need its surroundings — to scale and on separate layers. That is exactly what our site plan delivers as PDF, DWG and DXF. [ View the site plan of Aachen → ](https://schwarzplan.eu/en/figure-ground-plan-site-plan-aachen/) FAQ ## Cadastral maps, parcels & the German cadastre ### Can I view the cadastral map of Aachen online for free? Yes. The map above shows the cadastral parcels in the Aachen map extent — no sign-up, no fee. 408,984 parcels are covered there. It is a non-binding orientation based on official open geodata, not an official cadastral extract. ### How do I find my parcel number in Aachen? Search for your address in Aachen above and zoom into the map. Parcel numbers appear once buildings become visible. A click reveals the cadastral district (Gemarkung), sector (Flur) and number — this extent holds 155 districts and 2,408 sectors. ### How large is a typical plot in Aachen? Within the Aachen map extent, half of all cadastral parcels are smaller than 590 m² (median); the mean is 3,399 m². The mean sits consistently above the median because a few large areas — forest, industry, transport — pull it upwards. ### Are the property boundaries on this map legally binding? No. The boundaries come from open geodata published by the state surveying authority and serve as orientation. Only the official extract from the German cadastre (Liegenschaftskataster) is legally binding — for Nordrhein-Westfalen it is issued by TIM-online NRW. You need that extract for a building application, a boundary dispute or a notary appointment. ### Is the Flurkarte in Aachen also called Liegenschaftskarte or Katasterplan? Yes, these all refer to the same map. Liegenschaftskarte is the current technical term from ALKIS, Flurkarte the older name, and Katasterplan, Katasterkarte or Flurplan are colloquial variants. For Aachen the map above shows the same content in every case: parcel boundaries, parcel numbers, cadastral district and land parcel block. The one genuine difference is the Katasterauszug — the sealed document produced from it. ### Where does the cadastral data for Aachen come from? From the open geodata of Nordrhein-Westfalen: © Geobasis NRW (dl-de/zero-2-0). Figures as of 2026-08-14.