17 Mostyn Avenue is a four-bedroom detached house in West Kirby, Wirral, Wirral (CH48 3HN). It has a recorded floor area of 214 m² (around 2303 sq ft), construction records dating it to before 1900 and council tax band F. Tenure is freehold. The latest certificate (January 2026) shows a D (score 58), a step below the typical UK home. When first surveyed in April 2011 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Average to Good and main heating went from Average to Good; while lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 78). This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have outpaced Wirral HPI: 7.8% per year against 0% for the wider region. Today's modelled estimate of £747,000 is 44.2% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£225/sq ft) was about 58.4% above the typical sold price in the postcode. At 214 m² the property is well over the postcode median (162 m² across 9 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. Last sold in October 2016, so it's been off the market for around 10 years.
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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17 Mostyn Avenue's carbon output runs well above what efficient homes in the postcode produce.
17 Mostyn Avenue has an approved single-storey rear extension on the planning record.
Latest sale on 17 Mostyn Avenue was the highest on Land Registry record across the postcode.
£747,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.8% per year over 19 years.
£518,000
Growth on file: 7.8% per year over 19 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Mostyn Avenue — bus stop.

Daytime· 07:00 – 23:00
48.5dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
Low energy lighting percentage decreased
Roof insulation improved
More low energy lighting installed
Extension: Single storey · Rear of property
Single storey rear extension and internal alterations
What's in 17 Mostyn Avenue, West Kirby, Wirral, CH48 3HN's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
6 October 2016Most recent
£518,000
+10.2%over 4 years16 March 2012
£470,000
+288.4%over 14 years29 May 1997
£121,000
Median price across the last 5 sales in CH48 3HN: £218,000 (2024–2017).

CH48 3JQ
Closest school
0.3 km
West Kirby St Bridget's CofE Primary School. 7 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Night-time· 23:00 – 07:00
39.9dB