This is a final report of an archaeological excavation at Platin/Lagavooren 1 (00E0822) which was located on the route of the M1 Northern Motorway Gormanston – Monasterboice (Drogheda Bypass), Platin to Oldbridge, Chainage 21600–24800, Contract 7, County Meath. The excavation was carried out by Robert Lynch of Irish Archaeological Consultancy Ltd on behalf of Meath County Council. The work was carried out under licence No. 00E0822 which was received from the DoEHLG in consultation with the National Museum of Ireland. The fieldwork took place between 8 November 2000 and 14 March 2001. Platin/Lagavooren 1 was identified as a result of archaeological assessment undertaken in 2000 (Valerie J. Keeley 2003; Licence No. 00E282). An extensive spread of archaeological material consisting of deposits, pits and a narrow trench was identified at the site. An area measuring c. 60m x 30m (1800m²) was cleaned back by hand for excavation. The site at Platin/Lagavooren 1 primarily comprised a well-defined middle/developed Iron Age structure with associated pits, gullies and gullies which contained metallurgical waste (Phase 2). This was preceded by a possible slightly earlier phase which was identified through C14 dating of a single pit which returned an early Iron Age date (Phase 1). A post-medieval phase which comprised linear ditches and drains marked the final phase of activity (Phase 3). This site at Platin/Lagavooren is without close parallel in the Irish context. Although there are a number of circular Iron Age houses with similar date ranges, few are as clearly defined, or have the direct association with high quality iron and bronze metalworking such as the case here. The artefactual material (in particular an assemblage of red glass beads) from this site is also without parallel in Ireland. There is tangible evidence that this was a relatively high status site and that inhabitants of Platin/Lagavooren had close contact or at least trade with mainland Europe in the middle/developed Iron Age.