UK Property Check · Printed on 8 November 2026ukpropertycheck.co.uk/postcode/ll55
LL55Caernarfon, Gwynedd, Wales
House prices in LL55, Caernarfon
Homes in LL55 sold for a median of £209,000 between September 2024 and August 2026, from 464 standard sales.
It is the second most expensive of the 8 postcode districts in the Gwynedd council area with at least 100 sales.
Prices by property type
| Type | Sales | Median price | Middle half |
|---|---|---|---|
| Detached | 133 | £320,000 | £273,000 to £375,000 |
| Semi-detached | 123 | £221,500 | £175,000 to £258,000 |
| Terraced | 200 | £158,000 | £125,000 to £200,000 |
LL55 has too few sales linked to an energy certificate for its own price per m². Across the LL postcode area, whose median sale price is within 20% of LL55's, it was £2,609 per m² from 503 linked sales.
Terraced houses were the most common type sold here, at 43% of sales, ahead of detached houses at 29%.
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
Where prices are higher in LL55
Of the postcode sectors with at least 20 standard sales, prices were highest in LL55 4, around Llanrug and Llanberis, with a median of £220,000, and lowest in LL55 1, around Caernarfon, at £195,000. Dashed outlines on the map show roughly where the two sectors are.
Each dot is a postcode in LL55 with at least 3 standard sales from September 2024 to August 2026, shaded by the median price of those sales. Select a dot for its median and a link to its sales, or use the list below the map.
Map loading
List the 43 postcodes on the map, dearest first
| Postcode | Median price | Standard sales |
|---|---|---|
| LL55 1LL | £440,000 | 4 |
| LL55 4HD | £375,000 | 3 |
| LL55 1LR | £286,500 | 4 |
| LL55 4AH | £285,500 | 8 |
| LL55 2UB | £285,000 | 5 |
| LL55 1GA | £265,000 | 4 |
| LL55 4FF | £265,000 | 3 |
| LL55 2SQ | £255,000 | 8 |
| LL55 2SJ | £250,500 | 10 |
| LL55 2UR | £245,000 | 5 |
| LL55 3EG | £237,000 | 3 |
| LL55 1YA | £235,000 | 3 |
| LL55 4YS | £235,000 | 3 |
| LL55 2SF | £221,500 | 3 |
| LL55 4BA | £220,000 | 3 |
| LL55 4LE | £220,000 | 3 |
| LL55 4PR | £217,500 | 4 |
| LL55 2LL | £214,000 | 4 |
| LL55 4LY | £212,500 | 3 |
| LL55 2RL | £202,500 | 5 |
| LL55 1BP | £195,000 | 3 |
| LL55 4AN | £192,000 | 3 |
| LL55 4HL | £180,000 | 3 |
| LL55 1DS | £179,500 | 4 |
| LL55 2UE | £174,000 | 5 |
| LL55 4AG | £169,000 | 8 |
| LL55 1PN | £165,000 | 9 |
| LL55 1TD | £165,000 | 3 |
| LL55 4LH | £165,000 | 4 |
| LL55 1PH | £162,000 | 6 |
| LL55 1PG | £161,000 | 6 |
| LL55 4AE | £160,000 | 4 |
| LL55 4EP | £147,500 | 3 |
| LL55 4DE | £128,500 | 3 |
| LL55 1NS | £125,000 | 3 |
| LL55 3HT | £119,000 | 3 |
| LL55 3HR | £113,500 | 6 |
| LL55 2PU | £101,500 | 6 |
| LL55 1TA | £97,000 | 3 |
| LL55 2HY | £95,000 | 3 |
| LL55 1ND | £90,000 | 3 |
| LL55 2AP | £85,000 | 3 |
| LL55 3HU | £82,000 | 3 |
Prices over time
The median rose 37%, from £150,000 in 2016 to £205,000 in 2025, less than the 48% rise for a typical district in Wales.
Sales picked up in 2025: 267 standard sales in LL55, 20% more than the 223 in 2024.
Postcode districts in the Gwynedd council area
Median sale price of the 8 districts with at least 100 standard sales, September 2024 to August 2026, dearest first, each named by its post town. LL55 is the second most expensive.
- LL53 Pwllheli£255,000
- LL55 Caernarfon, this district£209,000
- LL40 Dolgellau£200,000
- LL49 Porthmadog£195,000
- LL36 Tywyn£192,500
- LL57 Bangor£180,000
- LL54 Caernarfon£165,000
- LL41 Blaenau Ffestiniog£127,500
Energy ratings of homes for sale
| Rating | Homes | Share |
|---|---|---|
| A | 1 | |
| B | 9 | |
| C | 103 | |
| D | 188 | |
| E | 104 | |
| F | 42 | |
| G | 25 |
Only 24% of homes put up for sale were rated C or better, against 52% across England and Wales. D was the most common rating: see what a D rating means.
When the homes were built
| Built | Homes | Share |
|---|---|---|
| 195 | ||
| 73 | ||
| 33 | ||
| 32 | ||
| 77 | ||
| 35 | ||
| 20 | ||
| 7 |
57% 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 41% 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.
Prices by council ward
Median price in the council wards that cover most of LL55, from the sales in LL55, September 2024 to August 2026, dearest first:
- Bethel a'r Felinheli 31 sales£254,000
- Llanberis 55 sales£235,000
- Peblig 48 sales£218,000
- Llanrug 50 sales£213,500
- Menai 54 sales£202,500
- Deiniolen 44 sales£152,500
- Canol Tref Caernarfon 56 sales£125,000
Fewer than 30 sales, so no median: Cwm-y-glo.
Recent sales
The 10 latest sales ran from £135,000 for a terraced house on William Street to £290,000 for a detached house on Gwel Y Llan.
The latest standard sales recorded in LL55. 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.
- 1 Tros Y GorsSold for £175,000
- 14 Maes MeddygSold for £230,000
- AngorfaSold for £123,000
- Glan Padarn Station RoadSold for £197,500
- 18 Margaret StreetSold for £165,000
- 126 Gwel Y LlanSold for £290,000
- 4 Maes MeddygSold for £200,000
- 13 MinfforddSold for £218,000
- 26 Bro EglwysSold for £240,000
- 13 William StreetSold for £135,000
Streets with the most standard sales, with their median price, September 2024 to August 2026:
- Gwel Y Llan, Caernarfon£250,50018 sales
- Station Road, Llanrug£186,50012 sales
- High Street, Deiniolen£91,00010 sales
Living in LL55
Crime
80 crimes per 1,000 residents in the year to August 2026
Higher than 65 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 75% of homes can get it
Lower than 72 in 100 postcode districts. England and Wales: 89%. The middle half of postcode districts are between 73% and 94%.
Radon
92% of postcodes are in a 1 km square that includes a radon Affected Area
Higher than 70 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 741 live postcodes in LL55 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 464 standard sales in LL55, the latest on 28 August 2026 (what counts as a standard sale). Of these, fewer than 1 in 10 were flats.
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.