1, Tyddyn Adi, LL49 9YU

1 Tyddyn Adi is a 86 m² / 926 sq ft flat in Porthmadog. It sold for £146,000 in November 2017. Indexed forward to today's value, that sale is roughly £169k. Recent local prices imply a broad valuation context of £147k to £264k based on its internal area. The Land Registry and EPC data was last updated 4 August 2026.

Property data
Sale history
Date Paid price Annual growth After inflation
Nov 2017 £146,000 1.7% -0.4%
Nov 2010 £130,000 -10.6% -12.3%
Aug 2008 £167,500 16.2% 14.0%
Dec 1998 £38,950 na na
Floor plan

Archived estate agent floor plan for 1, Tyddyn Adi.

Floorplan 1
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Internal area
86 square metres (926 square feet) according to latest EPC inspection
Price per internal area

This property sold for £1,697 per square metre (£158 per square foot) in Nov 2017. Indexed forward to today's value, this is roughly £1,967 per square metre (£183 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Nov 2017 £146,000 £1,698 £169,144 £1,967
Nov 2010 £130,000 £1,512 £154,461 £1,796
Aug 2008 £167,500 £1,948 £198,510 £2,308
Dec 1998 £38,950 £453 £138,772 £1,614

Calculated using the latest EPC internal area of 86 m². Earlier sale dates may not have had the same measured area available.

Valuation
The most recent sale price indexed forward to today's value is £169,144. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Porthmadog are now selling for between £1,710 and £3,070 per square metre (£158 and £285 per square foot). Based on an internal area of 86 m², this implies a valuation between £147,000 and £264,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
Bedrooms
3
Type
Flat
Council tax band
C
Archived listings
History:
Archived sales listing for 1 Tyddyn Adi. Advertised on multiple portals. It was added on 27/07/2017. It last appeared Nov 2017.
Photos:

There are 11 archived estate agent listing photos for 1 Tyddyn Adi.

Photos for 1 Tyddyn Adi
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Advertiser remarks:
  • 3 bedrooms
  • 1 bathrooms
EPC Inspections
Summary:
11 June 2009 - energy performance certificate grade D
Reason for EPC:
None
Tenure:
Owner-occupied
Property type:
None , has 5 habitable rooms. Estimated year built 1967 to 1975
Area:
86 sqm (926 square foot) total internal area
Comments:
Frequently asked questions

1 Tyddyn Adi is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.

  • HouseMetric estimates the most recent sale price indexed forward to today's value is £169,144.
  • Based on an internal area of 86 m² and recent prices in Porthmadog, this implies a lower and upper quartile range from £147,000 to £264,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 1 Tyddyn Adi last sold for £146,000 in November 2017.

HouseMetric shows 1 Tyddyn Adi as 86 m² (926 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 3 bedrooms. Bedroom numbers can come from a previous estate agency listing, an EPC record, or an estimate based on the size of the property.

The latest EPC rating shown by HouseMetric is D, from an inspection dated 11 June 2009. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 1 Tyddyn Adi was in council tax band C. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

1 Tyddyn Adi is in postcode LL49 9YU, in Porthmadog. You can also view HouseMetric's sold-price page for Tyddyn Adi, LL49 9YU or analysis of the Porthmadog property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 4 August 2026. Figures such as indexed values and local valuation ranges are calculated estimates for context, while official records can change as public datasets are updated.

For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.