| Commercial opening of the Pajares Bypass (passengers) | Pajares Bypass (HSR) | Completed | 14y 11m of delay | 29 Nov 2023 | — | 4 |
| Third rail León - La Robla (Pajares access) | Pajares Bypass (HSR) | Under construction | 7y 6m of delay | 31 Dec 2026 | €53 M | 1 |
| Commercial opening of Madrid - León HSR (Valladolid - Venta de Baños - León) | Madrid - León HSR (Venta de Baños - León) | Completed | 4y 9m of delay | 30 Sep 2015 | — | 1 |
| Third-rail and ERTMS adaptation of the Pajares Bypass | Pajares Bypass (HSR) | Under construction | No target date | — | €122 M | — |
| Longitudinal ventilation system of the Pajares tunnels | Pajares Bypass (HSR) | Completed | On time | 29 Nov 2023 | — | — |
| Safety and civil protection maintenance in the Pajares tunnels | Pajares Bypass (HSR) | Under construction | No target date | — | €4 M | — |
| 750 m sidings León - Monforte | León - Monforte de Lemos access | Planned | No target date | — | — | — |
| Infrastructure maintenance León — La Robla — Pola de Lena (HSL) | Pajares Bypass (HSR) | Under construction | No target date | — | €28 M | — |
| Second track and electrification of the Palencia - León HSR (Bercianos - León) | Madrid - León HSR (Venta de Baños - León) | Under construction | No target date | — | €95 M | — |
| Duplication of the Palencia - León HSR (Palencia exit toward Grijota) | Madrid - León HSR (Venta de Baños - León) | Under construction | No target date | — | €22 M | — |
| León - La Robla link and Pajares Bypass opening (in service) | Pajares Bypass (HSR) | Completed | No target date | 30 Nov 2023 | — | — |
| Rail integration of León station (Iberian/standard gauge) | León rail node | Completed | No target date | 21 Sep 2021 | — | — |
| FEVE / metric-gauge integration in León (2010 deal, failed) | León rail node | Stopped | No target date | — | — | — |
| Full renewal of the León - La Granja section (line 800, 89 km) | León - Monforte de Lemos access | Planned | No target date | — | €222 M | — |
| Renewal of the La Granja - Covas section (line 800, 62 km) | León - Monforte de Lemos access | Planned | No target date | — | — | — |
| Gauge and tunnel adaptation of the Manzanal pass (Brañuelas - La Granja) | León - Monforte de Lemos access | Planned | No target date | — | — | — |
| Ponferrada intermodal logistics platform (La Placa) — 750 m siding | Ponferrada logistics platform (La Placa) | Planned | No target date | — | €830,000 | — |
| Removal of the Dehesas level crossing (Ponferrada, line 800) | León - Monforte de Lemos access | Under construction | No target date | — | €3 M | — |
| Torneros-Grulleros intermodal logistics platform (Onzonilla, León) | Torneros logistics terminal | Stopped | No target date | — | €33 M | — |
| Rail access to the Villadangos del Páramo estate (León logistics hub) | Villadangos del Páramo rail access (León logistics hub) | Completed | On time | 22 Jan 2025 | €21 M | — |
| Stabilisation of Screen 1 — unstable slope on the Pajares Variant | Pajares Bypass (HSR) | Under tender | No target date | — | €14 M | — |
| Interlockings, CTC and energy of the León — Pajares junction section (HSL) | Pajares Bypass (HSR) | Completed | No target date | — | — | — |
| GSM-R telecommunications for the León — La Robla section (HSL Asturias) | Pajares Bypass (HSR) | Completed | No target date | — | — | — |
| Renewal of road crossings on the León — La Robla line | Pajares Bypass (HSR) | Under construction | No target date | — | — | — |
| New grade separation at Trobajo del Cerecedo over the Palencia-León HSL | Madrid - León HSR (Venta de Baños - León) | Completed | No target date | 18 Jun 2026 | — | — |
| Urban redevelopment around Matallana station (FEVE) in León — Sector NC06-03 | León rail node | Completed | No target date | 27 May 2025 | — | — |
| Rail and sleeper replacement (RS to monoblock) between Bembibre and Toral de los Vados (León-A Coruña line) | León - Monforte de Lemos access | Completed | No target date | — | — | — |
| Station and interlocking modernisation on the León-Guardo metre-gauge line (line 790) | León rail node | Completed | No target date | 8 Jul 2024 | — | — |
| Level crossing elimination in Villaquilambre (León-Matallana metre-gauge line, RAM) | León rail node | Under construction | No target date | — | — | — |
| Palencia rail integration — Southern Access platform (Phase II) | Madrid - León HSR (Venta de Baños - León) | Under construction | No target date | — | — | — |
| Palencia urban rail undergrounding (3.7 km) | Madrid - León HSR (Venta de Baños - León) | Planned | No target date | — | — | — |
| Platform construction on the Palencia to Palencia Norte section (Palencia-Santander HSL) | Madrid - León HSR (Venta de Baños - León) | Under construction | No target date | — | — | — |
| Safety systems modernisation on the Guardo-Arija-Balmaseda section (Bilbao-León metre-gauge line) | León - Monforte de Lemos access | Under construction | No target date | — | — | — |