21, Mariners Way, SR7 7EB
21 Mariners Way is a 42 m² / 452 sq ft flat in Seaham. It sold for £92,000 in March 2026. Indexed forward to today's value, that sale is roughly £92k. Recent local prices imply a broad valuation context of £36k to £96k based on its internal area. The Land Registry and EPC data was last updated 2 July 2026.
- Sale history
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Date Paid price Annual growth After inflation Mar 2026 £92,000 17.7% 15.1% Oct 2025 £86,000 -2.2% -5.9% Oct 2022 £92,000 7.1% 0.5% Oct 2020 £80,000 0.0% -1.5% Aug 2017 £79,950 1.3% -0.1% Dec 2012 New build New £75,250 na na - Floor plan
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Archived estate agent floor plan for 21, Mariners Way.
- Internal area
- 42 square metres (452 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £2,190 per square metre (£203 per square foot) in Mar 2026. Indexed forward to today's value, this is roughly £2,190 per square metre (£204 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Mar 2026 £92,000 £2,190 £92,000 £2,190 Oct 2025 £86,000 £2,048 £83,805 £1,995 Oct 2022 £92,000 £2,190 £86,094 £2,050 Oct 2020 £80,000 £1,905 £79,013 £1,881 Aug 2017 £79,950 £1,904 £78,638 £1,872 Dec 2012 £75,250 £1,792 £59,067 £1,406 Calculated using the latest EPC internal area of 42 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 £92,000. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Seaham are now selling for between £850 and £2,280 per square metre (£78 and £211 per square foot). Based on an internal area of 42 m², this implies a valuation between £36,000 and £96,000. 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
- 2
- Type
- Flat
- Council tax band
- B
- Summary:
- 10 February 2025 - energy performance certificate grade C
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Marketed sale
- Tenure:
- Owner-occupied
- Property type:
- 2nd floor flat in an apartment block with 1 storeys , has 3 habitable rooms. Estimated year built 2012 to onwards
- Area:
- 42 sqm (452 square foot) total internal area
- Comments:
- Walls: Cavity wall, as built, insulated (assumed). Roof: (another dwelling above). Heating: Boiler and radiators, mains gas.
- Summary:
- 15 November 2012 - energy performance certificate grade B
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- New dwelling
- Tenure:
- Unknown
- Property type:
- 2nd floor flat in an apartment block with 1 storeys Estimated year built None to None
- Area:
- 52 sqm (560 square foot) total internal area
- Comments:
- Roof: (other premises above). Heating: Boiler and radiators, mains gas.
21 Mariners Way 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 £92,000.
- Based on an internal area of 42 m² and recent prices in Seaham, this implies a lower and upper quartile range from £36,000 to £96,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.