7 Castlebay Court, Darlington, DL1 3RF
About 7 Castlebay Court
7 Castlebay Court is a three-bedroom semi-detached house in Darlington (DL1 3RF). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1976-1982 and council tax band B. Tenure is freehold. The latest certificate (May 2018) shows a D (score 55), a step below the typical UK home. Earlier certificates rated it C (October 2009); the latest reading is one band lower. Between certificates, roof efficiency went from Good to Very Good; while hot-water efficiency dropped from Good to Poor and lighting dropped from Very Good to Very Poor. The recommended improvements would lift it to B (score 88), a 2-band jump.
Across 2003–2018, sale prices on this property compounded at 3.2% per year. Today's modelled estimate of £161,000 is 26.3% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£185/sq ft) was about 23.8% above the typical sold price in the postcode. Most recent transfer: November 2018 at £127,500.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
Outside
- Private gardenYes
- GarageYes
Building
- TenureFreehold
- Heating systemGas
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system changed
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
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Planning history
7 Castlebay Court has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
7 Castlebay Court valuation sits well clear of the typical sold price in this postcode.
£161,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.2% per year over 15 years.
£127,500
Growth on file: 3.2% per year over 15 years.
Sales timeline
5 November 2018Most recent
£127,500
+63.5%over 15 years19 May 2003
£78,000
Median price across the last 5 sales in DL1 3RF: £135,000 (2025–2019).
Nearby sales in DL1 3RF
Versus other Castlebay Court homes
On co₂ emissions, 7 Castlebay Court runs well behind the street norm.
Price per m²
£1,992
Street avg £1,744
Floor Area
64 m²
Street avg 65 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
4.4 t/year
Street avg 3.3 t/year
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Caledonian Way — bus stop.
Closest school
0.4 km
Whinfield Primary School. 13 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
48.1dB

Night-time· 23:00 – 07:00
39.9dB







