UK Property Check · Printed on 8 November 2026ukpropertycheck.co.uk/postcode/ll51
LL51Garndolbenmaen, Gwynedd, Wales
House prices in LL51, Garndolbenmaen
Homes in LL51 sold for a median of £172,500 between September 2024 and August 2026, from 12 standard sales.
That is 12% below the £195,000 median for the Gwynedd council area.
Prices by property type
Detached houses and terraced houses sold in similar numbers here, at 42% and 42% of sales.
Compare an asking price
- Check a home for its floor area
- How much to offer, then how to put the offer in writing
- Work out Land Transaction Tax
Prices over time
Energy ratings of homes for sale
| Rating | Homes | Share |
|---|---|---|
| B | 1 | |
| C | 2 | |
| D | 6 | |
| E | 10 | |
| F | 1 | |
| G | 3 |
Only 13% of homes put up for sale were rated C or better, against 52% across England and Wales. E was the most common rating: see what a D rating means.
When the homes were built
| Built | Homes | Share |
|---|---|---|
| 17 | ||
| 2 | ||
| 2 | ||
| 2 |
83% of homes put up for sale were built before 1930, against 24% across England and Wales. For older homes RICS suggests a Level 3 survey: see which survey you need.
With 74% built before 1900, ask early whether a home is listed or in a conservation area, which limits the work you can do: see buying a listed building and buying in a conservation area.
Recent sales
The latest standard sales recorded in LL51. Sales take 2 weeks to 2 months to appear (how to find out what a house sold for). Select an address to check that home, or a postcode for every sale there.
- 5, Mynydd GlasSold for £215,000
- 7 Bro Pedr FarddSold for £120,000
- 6 Cambrian TerraceSold for £91,000
- Tan Y FforddSold for £170,000
- Min Y DdolSold for £145,000
- 14 Maes HyfrydSold for £110,000
- 2, HighgateSold for £230,000
- Glan HenwySold for £235,000
- Efail GlandwyfachSold for £175,000
- TrigfaSold for £160,000
Living in LL51
Crime
19 crimes per 1,000 residents in the year to August 2026
Lower than 99 in 100 postcode districts. England and Wales: 84. The middle half of postcode districts are between 47 and 93.
The rate counts every crime recorded in an area against the people who live there, so shops, stations and nightlife push it up.
Gigabit broadband
Across its postcodes, an average of 40% of homes can get it
Lower than 95 in 100 postcode districts. England and Wales: 89%. The middle half of postcode districts are between 73% and 94%.
Radon
Every postcode is in a 1 km square that includes a radon Affected Area
Higher than 83 in 100 postcode districts.
In a radon Affected Area, UKHSA recommends a radon test. A UKradon report gives the result for an exact address.
Council tax
Band D is £2,469 a year in Gwynedd for 2026 to 2027
Higher than 60 in 100 council areas. Wales: £2,283. The middle half of council areas are between £2,323 and £2,526.
Band D includes every charge on the bill, such as the police and any community council.
The free check gives these for a single home, with the nearest schools and road and rail noise (how we work them out).
Crime: data.police.uk, with Census 2021 population from the Office for National Statistics. Broadband: Ofcom Connected Nations, January 2026. Radon: the British Geological Survey and UKHSA. Council tax: the Welsh Government. Contains public sector information licensed under the Open Government Licence v3.0.
Coal mining
None of the 45 live postcodes in LL51 is in the Mining Remediation Authority's coal mining reporting area, although 39% of postcodes in Wales are.
About these figures
The figures come from 12 standard sales in LL51, the latest on 29 July 2026 (what counts as a standard sale).
Updated 15 October 2026 with sales recorded to August 2026. Next update due in late November 2026.
Contains HM Land Registry data © Crown copyright and database right 2026. Energy certificate data from the Ministry of Housing, Communities and Local Government. Both are licensed under the Open Government Licence v3.0.