This report presents the results of archaeological evaluation trenching that was carried out by South West Archaeology Ltd. (SWARCH) for a residential development at Land North-East of Chywoone Farm, Newlyn, Penzance, Cornwall. The archaeological evaluation trenching revealed a possible boundary lynchet that contained Medieval pottery and a probable intrusive glass fragment. It ran in a curve from the northern boundary of the site to the western boundary of the site, dividing the site approximately in half. It also revealed five linear features (ditches and gullies) that may have been associated with an undated field system that included the boundary lynchet. The only find from the linear features was a scrap of possible residual Prehistoric pottery. A concentration of three undated ditches and a pit were present in the western corner of the site (Trench 2), whilst six post holes and a pit forming part of a probable roundhouse were present in the north-eastern corner of the site (Trench 5) that represented Iron Age activity and that contained Iron Age pottery and an Iron Age spindle whorl. Given the results of the archaeological evaluation trenching, it seems prudent that two separate areas around Trench 2 and Trench 5 should be subject to further archaeological works, such as targeted strip, map, and sample to better understand the extent, character, and date of any buried archaeological resource.