II*Church of St Eleth Set back, within an irregularly shaped churchyard, from the E side of Queen Street in the centre of the town of Amlwch.
IICopper Hoppers A linear range aligned along the E side of the Upper Basin or inner harbour of the harbour at Porth Amlwch; located directly below and aligned with Pen Cei (Upper Quay Street).
IIDinorben Arms Hotel Located along the W side of Queen Street, directly SW of the Church of St Eleth.
IIDry dock Located to the NE of the old harbour, and S of the new harbour.
IIEglwys Bresbyteraidd Cymru On the N side of the road from Amlwch Port to Pengorffwysfa, set back in a railed forecourt.
IIFormer stables-coachhouse at Mona Lodge Located on the N side of the B5111 (Mona Street) at its junction with Lodge Orchard; the stable-coachhouse block is set at right angles to No. 4 Mona Lodge (the E wing of the house).
IIHarbour Walls of old harbour Located to the N of Lon y Cei (Quay Street), with a slipway to the S end; sections of walling link up vertical rock faces to form a continuous harbour wall, with level quayside.
IILychgate at Church of St Eleth Forming the main W entrance to the irregularly shaped churchyard of the Church of St. Eleth; located on the E side of Queen Street in the centre of the town of Amlwch.
IIMadyn Dysw Accessed via a narrow side road leading off the E side of Lon Goch, where Lon Goch changes direction to run northwards.
IIMelin Adda Set back from the N side of Ffordd Tanybryn, c200m due east of Ysgol Syr Thomas Jones in Pentrefelin.
IIMona Lodge Located on the N side of the B5111 (Mona Street) at its junction with Lodge Orchard; No. 1 occupies the wing at the far L (W) end of the large town house.
IIMona Lodge Located on the N side of the B5111 (Mona Street) at its junction with Lodge Orchard; No. 2 is to the R (E) end of the main part of the large town house.
IIMona Lodge Located on the N side of the B5111 (Mona Street) at its junction with Lodge Orchard; No. 2 is to the L (W) end of the main part of the large town house.
IIMona Windmill Located on a headland to the W of Porth Amlwch. Reached via an unsurfaced trackway leading E off the chemical works access road.
IINo.4 Mona Lodge Located on the N side of the B5111 (Mona Street) at its junction with Lodge Orchard; No. 4 occupies the wing at the far R (E) end of the large town house.
IIOld National School Located on the N side of the A5025, on the lower side of the hillside leading down into Amlwch.
IIParc Mawr Set back from the NE side of the A5025 on the SE approach to the town of Amlwch; c1.5km SE of the Church of St Eleth.
IIParys Mountain Windmill In an isolated location, set back from the SE side of the B5111 running S out of Amlwch. The windmill is located close to the highest point of Parys Mountain, to NE of the remains of the Parys Mines.
IIPearl Engine House Located in a prominent position on the extreme north-east side of Parys Mountain. Accessed via a minor road leading W off the A5025.
IISail Loft In an elevated position above the dry dock at the N end of the harbour, the sail loft is slightly set back from the N end of Pen Cei (Upper Quay Street).
IITy-newydd Located at the E side of the A5025 on the way out of Amlwch to the south. The cottage lies SW of the roundabout at Cross Ways and is at the junction with the turn off to Bod-Ednyfed-bach.
II*Ysgol Syr Thomas Jones Set back, within private grounds, from the SW side of Ffordd Tanybryn in Pentrefelin.