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For sale
£1,500,000Offers over

Gwern-Y-Domen Farm Lane, Caerphilly, CF83 3RN

7bedrooms
7bathrooms
Detachedtype
Freeholdtenure

Listed 25 Feb 2026 · Caerphilly

How the price compares

This home£1,500,000
Median 7 bed in Caerphilly£1.65m2 homes listed · £437 per sq ft
Difference-9%below the area median

Key features

  • Detached Tudor Mansion
  • Rich history and timeless charm
  • Exciting business opportunity
  • Historical Welsh Influence
  • Versatile Barn Space
  • Prime location

About this home

Stepping into Y Fan Mansion, you're immediately enveloped by its grandeur. The high ceilings and expansive windows flood the interior with natural light, highlighting the meticulous restoration undertaken by its current owners. The magnificent drawing and dining room exude elegance, while the spacious kitchen offers a perfect blend of functionality and style. Ascending the breathtaking staircase, you'll discover seven en-suite bedrooms, Six of which are thoughtfully named after iconic Welsh and French figures, each with a story to tell. Among them, Ifor Bach, Owain Glyndwr, Gruffydd the Fair, and The Green Lady pay homage to Wales rich history and legends. The Edward Lewis Room, the premier suite, boasts stunning double aspect windows, while another bedroom, was named after Gilbert de Claire. Additionally, the estate's heritage is intertwined with that of Gilbert de Clare, the renowned builder of Caerphilly Castle. Each room captivates with its unique character, making every visit a memorable experience. The attic spans the full length of the mansion, offering a generous space with potential for future adaptation. A Rich History The origins of Y Fan trace back to 1529 when it was acquired by Edward Lewis, the Sherriff of Glamorgan 3 times. The estate was developed in three distinct phases the mansion, the farmhouse, and the barn each built approximately 50 years apart. Sir Thomas Lewis, Edward's son and also a sheriff of Glamorgan, robbed' stone from Caerphilly Castle for the farmhouse, a feature still evident in its dressed stonework today. By 1630, the Lewis family relocated to St Fagans, a grander architectural counterpart to Y Fan. The Lewis male lineage eventually ended, and in the 1730s, Elizabeth Lewis married the Earl of Plymouth, transferring the family's South Wales estate including Y Fan and St Fagans to the Plymouth family. While St Fagans remained a summer residence, Y Fan was left unoccupied for over 260 years, with only the farmhouse used by tenant farmers working the surrounding land. Now beautifully restored by the current owners, Y Fan stands as a distinguished Grade II listed residence, blending historic charm with modern comforts. Stepping outside Y Fan Mansion, your welcomed by expansive gardens spanning approximately 0.67 acres, offering a blend of natural beauty and open green space. The grounds feature both lower and upper lawns, enclosed by historic stone walls, providing a serene setting for relaxation and outdoor gatherings. Mature trees offer natural shade, enhancing the tranquil ambiance. Adjacent to the main house is a two-story stone barn. The ground floor currently serves as a workshop, while the first floor, previously a self-contained apartment, awaits complete renovation. With existing plumbing and electrics, this space presents an excellent opportunity for conversion into a holiday let or self-contained annex, subject to planning permissions. The property also boasts ample parking for multiple vehicles, ensuring convenience for residents and guests alike. Whether you're seeking a peaceful retreat or exploring potential business ventures, the outdoor spaces of Y Fan Mansion offer a harmonious blend of relaxation and opportunity. Additional Information Currently operating as a boutique Bed & Breakfast, Y Fan offers an exceptional lifestyle business opportunity with room for further growth. The property benefits from an entirely new heating, electrical, and sprinkler system, ensuring comfort and efficiency. Conveniently located near Caerphilly Train Station, it also offers easy access to ancient meadowland one of the last 3% of its kind in the UK ideal for horse riding and scenic countryside walks. Whether as a distinguished family home or a thriving business, Y Fan presents a rare opportunity to own a remarkable piece of Welsh history in the heart of Caerphilly.

EPC Rating: F

Property details

Property type
Detached
Council tax band
F
Tenure
Freehold
Parking
Yes
Garden
Yes

Floorplan

All

Location

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  • Caerphilly Station0.7 mi
  • Aber Station1.1 mi
  • Energlyn & Churchill Park Station1.2 mi

What nearby homes sold for

Median sold prices in CF83 over the last 12 months: terraced £189k · semi-detached £240k · detached £360k · flat £130k.

Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0. All sales in CF83

Buying costs

Monthly repayment£7,504£150,000 deposit · £1,350,000 loan
Land Transaction Tax£111,750Wales rates

Estimates only, using rates in force from April 2025. Check GOV.UK, Revenue Scotland or the Welsh Revenue Authority and speak to a mortgage adviser before you offer.

Listed by Fine & Country, South Wales on Rightmove (original listing). First listed 25 Feb 2026; details checked 7 Nov 2026. Latest change: reduced on 26/04/2025.

Agent disclaimer

Disclaimer - Property reference a103daae-569f-481d-b59c-c9cee101d0e7. The information displayed about this property comprises a property advertisement. Rightmove.co.uk makes no warranty as to the accuracy or completeness of the advertisement or any linked or associated information, and Rightmove has no control over the content. This property advertisement does not constitute property particulars. The information is provided and maintained by Fine & Country, South Wales. Please contact the selling agent or developer directly to obtain any information which may be available under the terms of The Energy Performance of Buildings (Certificates and Inspections) (England and Wales) Regulations 2007 or the Home Report if in relation to a residential property in Scotland.

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