How Mi Parcelita works

From a cadastral reference to a first layout of the house, pool and garden on your plot, in a few minutes and in your browser.

1. Find the plot

   Type the cadastral reference (14 characters for a plot, 20 for a property) into the search field on the home page. No reference to hand? Try the sample plot in Cádiz or upload a GML file.

2. Open it in 3D

   Mi Parcelita downloads the official outline, the address and, if you tick the box, the existing buildings from the Catastro. The plot opens in 3D on the PNOA aerial photo and IGN terrain, with the neighbouring buildings at their recorded number of floors.

3. Place the elements

   Open the catalogue and add houses, garages, carports, pools, courts, paths, hedges or trees. Drag them onto the map, turn them with the handle and set width, depth, floors and roof in the inspector.

4. Set setbacks and limits

   Enter the boundary setback and your municipality's limits (floor-area ratio, coverage, height and floors). Anything that breaks a rule turns red, and the summary shows whether the plan meets each limit.

5. Study the sun

   Pick a date and time on the sun dial to see the shadows, play the day, or turn on the sun-hours map to find the sunniest spot for the pool or garden.

6. Ask the AI for ideas

   Describe what you want, for example "a house, a garage and a pool making the most of the sun", and the assistant proposes a layout that respects your rules. Accept or discard it.

7. Save and share

   The plan saves itself in your browser. Download it as a project file to carry on elsewhere, or export PNG images of the map or the 3D view.

What's on screen

• A full-screen map with floating panels: the plot card and the 2D/3D switch top left, the tools on the left, the plan panel on the right and the sun dial at the bottom.
• A summary bottom left: coverage, floor-area ratio, a rough cost and whether you meet the limits.
• On phones, a bottom sheet with tabs: element, add, plan, sun and AI.

Where the data comes from

• Plot, buildings and addresses: INSPIRE services of the Spanish Directorate General for the Cadastre.
• Aerial photo: PNOA, from the National Geographic Institute (IGN).
• Terrain: the IGN's MDT05 (5 m grid) and MDT25 digital terrain models, for the 3D view, slope and mountain shadows.
• Sun: solar position computed for the plot's latitude and longitude (NOAA algorithm).

Outside Spain there is no PNOA photo or terrain: the ground is treated as flat.