Our Data Sources
55, Isgraig, Porthmadog has no records in the the Land Registry and a single entry in the EPC database dated February 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 55, Isgraig, Porthmadog, we estimate a market value of £143,325 and a rental value of £746 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £126,945 and £661 per month respectively.
Plot Size
HM Land Registry records the plot of land for 55, Isgraig, Porthmadog as measuring 152 m2.
That makes it the largest plot in the postcode, where 36 of the 54 other houses have recorded plot data.
Energy Efficiency
55, Isgraig, Porthmadog has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 04 Feb 2026.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 55, Isgraig, Porthmadog have sold within a radius of 2.4 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 21st January 2025, was 10, Isgraig, Porthmadog, LL49 9PT, a freehold house which sold for £135,000.
Read more about house prices in LL49.
- Sold Jan 2025£135,000 | 3 Bed House10, Isgraig, Porthmadog, LL49 9PT10, Isgraig, Porthmadog, LL49 9PT
- Sold Dec 2021£135,000 | 3 Bed House91, Pensyflog, Porthmadog, LL49 9LB91, Pensyflog, Porthmadog, LL49 9LB
- Sold Aug 2019£85,000 | 3 Bed House56, Isgraig, Porthmadog, LL49 9PT56, Isgraig, Porthmadog, LL49 9PT
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 111 addresses on Isgraig, Tremadog, Porthmadog, LL49, 55, Isgraig, Porthmadog comes out as the 17th largest and the 8th most expensive in our analysis of the public data.
It is also £141k less expensive than the average property across the LL49 district.
More reading links
Schools Nearby
Public Transport Nearby
- 900mPorthmadog
- 4.1kmMinffordd
- 5.3kmPenrhyndeudraeth
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.












