9 St Marys Park, Windermere, LA23 1AY
About 9 St Marys Park
9 St Marys Park is a four-bedroom detached house in Windermere (LA23 1AY). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (July 2025) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since February 2009. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Average to Good and lighting went from Very Poor to Good; while wall efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 77).
At 128 m² the property is well over the postcode median (90 m² across 11 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, an annexe and partial demolition, meaningful when judging how the property has evolved. Across 2009–2021, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £752,000 is 15.7% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£472/sq ft) was about 23.2% above the typical sold price in the postcode. Most recent transfer: October 2021 at £650,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 9 St Marys Park
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms3
- EnsuiteYes
Outside
- Private gardenYes
- ParkingOff road
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Single glazing replaced with double or better glazing
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Feb 2019Tree WorksTreesIn report
Fell 1 sycamore (T26)
- Council
- South Lakeland
- Documents
- 3 docs on file
- Reference
- T/2019/0007
- Jun 2013AnnexFullIn report
Demolition of existing garage and link. Construction of ensuite bedroom, improved utility facilities and entrance to provide ambulant disabled facilities and a dayroom on the rear elevation
- Council
- South Lakeland
ExtensionDemolition- Documents
- 8 docs on file
- Reference
- 7/2013/5168
We flagged 1 thing worth checking at 9 St Marys Park
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Latest sale on 9 St Marys Park was the highest on Land Registry record across the postcode.
£752,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 12 years.
£650,000
Growth on file: 6.4% per year over 12 years.
Sales timeline
14 October 2021Most recent
£650,000
+62.7%over 8 years21 April 2013
£399,500
+33.2%over 3 years19 May 2009
£300,000
Median price across the last 5 sales in LA23 1AY: £389,050 (2022–2014).
Nearby sales in LA23 1AY
Everything we know about 9 St Marys Park, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other St Marys Park homes
On floor area, 9 St Marys Park stands well clear of the street.
Price per m²
£5,078
Street avg £4,038
Floor Area
128 m²
Street avg 96 m²
Habitable Rooms
6 rooms
Street avg 4 rooms
CO₂ Emissions
5.6 t/year
Street avg 5.3 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Rising year-on-year across the wider district.
Nearest stop
0.6 km
Windermere Rail Station — railway station.
Closest school
1.0 km
St Cuthberts Catholic Primary School, Windermere. 4 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
51.2dB

Night-time· 23:00 – 07:00
43.2dB