Our Data Sources
17, Garth Terrace, Porthmadog has no records in the Land Registry and a single entry in the EPC database dated November 2022.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 17, Garth Terrace, Porthmadog is in very good condition we estimate a sale value of £182,416 and a rental value of £691 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £161,569 and a rental value of £612 per month.
Plot Size
According to data from HM Land Registry, 17, Garth Terrace, Porthmadog sits on a plot of 52 m2.
We have plot size data on 16 out of 19 other houses in the postcode and 17, Garth Terrace, Porthmadog sits on the 13th largest plot.
Energy Efficiency
17, Garth Terrace, Porthmadog has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 18 Nov 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 61 sales of properties similar to 17, Garth Terrace, Porthmadog within a radius of 2.0 kilometres since 2017.
The most recent example is 78, Madoc Street West, Porthmadog, LL49 9EA, a freehold house which sold for £150,000 on the 27th May 2026.
Read more about house prices in LL49.
- Sold May 2026£150,000 | 3 Bed House78, Madoc Street West, Porthmadog, LL49 9EA78, Madoc Street West, Porthmadog, LL49 9EA
- Sold Feb 2026£145,000 | 3 Bed House4, Glaslyn Street, Porthmadog, LL49 9EG4, Glaslyn Street, Porthmadog, LL49 9EG
- Sold Dec 2025£155,000 | 3 Bed House50, East Avenue, Porthmadog, LL49 9EL50, East Avenue, Porthmadog, LL49 9EL
- Sold May 2025£195,000 | 3 Bed House16, Heol Y Parc, Porthmadog, LL49 9AR16, Heol Y Parc, Porthmadog, LL49 9AR
- Sold Apr 2025£140,000 | 3 Bed House9, Heol Y Parc, Porthmadog, LL49 9AR9, Heol Y Parc, Porthmadog, LL49 9AR
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £244,965, ranging from £155,791 to £353,725.
- 15 Garth Terrace
2 Bed House | 10 m | Est. Value: £157,041
- 14 Garth Terrace
3 Bed House | 16 m | Est. Value: £182,854
- 8 Roche Terrace
4 Bed House | 18 m | Est. Value: £329,086
- 7 Roche Terrace
4 Bed House | 19 m | Est. Value: £320,123
- 3 Roche Terrace
4 Bed House | 19 m | Est. Value: £313,933
Location Comparison
Garth Terrace, Porthmadog, LL49 has a total of 25 addresses. According to our analysis of all the public data, 17, Garth Terrace, Porthmadog is the 19th largest and the 18th most expensive property on the street.
When compared to the postcode district it is £54k less expensive than the average property in LL49.
More reading links
Schools Nearby
Public Transport Nearby
- Porthmadog|900 m away
- Minffordd|3.2 km away
- Penrhyndeudraeth|4.5 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












