History in Structure

This site is entirely user-supported. See how you can help.

Mertyn Isaf

A Grade II Listed Building in Mostyn, Flintshire

We don't have any photos of this building yet. Why don't you be the first to send us one?

Upload Photo »

Approximate Location Map
Large Map »


Latitude: 53.2972 / 53°17'50"N

Longitude: -3.2466 / 3°14'47"W

OS Eastings: 317014

OS Northings: 378532

OS Grid: SJ170785

Mapcode National: GBR 5ZR9.XR

Mapcode Global: WH76K.3D84

Plus Code: 9C5R7QW3+V9

Entry Name: Mertyn Isaf

Listing Date: 22 October 1952

Last Amended: 28 March 2002

Grade: II

Source: Cadw

Source ID: 14878

Building Class: Domestic

Location: Beyond the N end of Llwyn Ifor Lane on a hillside overlooking Llanerch-y-mor, approximately 1km S of Mostyn church.

County: Flintshire

Community: Mostyn

Community: Mostyn

Locality: Mertyn Downing

Traditional County: Flintshire

Find accommodation in


A 3-unit stone house of c1600, with a brick wing of the early C18. The original house has plain-chamfered and ovolo-moulded windows, and a stone fireplace similar to those at Plas Mawr, Conwy. The rear wing contained a Jacobean stairway, but the original stair is in an outshut to the front. The house was abandoned in the mid C20 and has subsequently been restored.


A large sub-medieval house comprising a 2-storey rubble-stone main range with added brick rear wing, both of which are under renewed slate roofs with coped gables on moulded kneelers. The main house has a tall central stone stack and smaller end stack to the R. Windows are mainly renewed and have ovolo mullions. The 3-window E front has 3-light windows, of which 2 are L of the stair projection under an outshut roof, and a single window to the R. The outshut has a small stair light in a dressed surround. To the R of the outshut are 2 doorways under stone lintels, the L of which is probably the position of an original doorway. The L gable end has a 3-light upper-storey window. The R gable end has single-light windows R and L in the lower storey, and a similar but smaller window upper R. The 3-window rear has similar renewed mullioned windows, except for an original 3-light window with transom R of the rear wing and 2-light window to the L, both with ovolo mouldings.

The rear wing has a rubble stone basement, plat band between storeys and hornless sash windows, with an external stack to the gable end. The N side wall has arched heads to 2 small-pane sash windows offset to the R in the lower storey, above small-pane basement windows. In the upper storey is a single small-pane sash windows R of centre. On the L side is a blocked former doorway in the lower storey where a lean-to has been taken down, above which is a small-pane sash window breaking the plat band and beneath an arched head, lighting the stair. The 3-window S side has small-pane sash windows, and a renewed panelled door under small-pane overlight to the R, all under flat brick arches.


Not inspected.

Reasons for Listing

Listed as substantial early C17 house retaining early character, with an especially fine early C18 brick rear wing.

Recommended Books

Other nearby listed buildings

  • II Plassau
    At the end of a farm track 1.4km S of Mostyn church, and built across a sloping site overlooking Llanerch-y-mor.
  • II Penrho Hall
    Set back in its own grounds near the E end of Gwibnant.
  • II Mertyn Downing
    Set back on the W side of a minor road approximately 0.9km SW of Mostyn church.
  • II The Old Tavern Inn
    Fronting the S side of the road in Llanerch y Mor.
  • II Christ Church
    Reached by a narrow lane off S side of A548. Located in a large rectangular churchyard sloping up to S, surrounded by a coursed stone wall with saddleback coping. Entrance to W, tall moulded piers w
  • II* Stokyn Hall
  • II Barn and cow house at Isglan Farm
    On the W side of the farmhouse.
  • II Isglan
    Approximately 1.5km WNW of Greenfield, set back on the N side of a minor road between Llannerch-y-mor and Carmel.

BritishListedBuildings.co.uk is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact BritishListedBuildings.co.uk for any queries related to any individual listed building, planning permission related to listed buildings or the listing process itself.

British Listed Buildings is a Good Stuff website.