4 Castlebay Court, Darlington, DL1 3RF
About 4 Castlebay Court
4 Castlebay Court is a two-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 (November 2023) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2012. Between certificates, hot-water efficiency went from Poor to Average; while roof efficiency dropped from Very Good to Good. The recommended improvements would lift it to B (score 87), a 2-band jump. Other recorded features include a conservatory.
Across 1999–2018, sale prices on this property compounded at 5.9% per year. Today's modelled estimate of £143,000 is 16.7% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£178/sq ft) was about 17.5% above the typical sold price in the postcode. On the market in May 2018 and unlisted since — roughly 8 years.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- ConservatoryYes
Outside
- GarageYes
Building
- TenureFreehold
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 efficiency improved
More low energy lighting installed
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Planning history
4 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
4 Castlebay Court has more than doubled in price since the earliest registered sale in 1999.
£143,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.9% per year over 19 years.
£122,500
Growth on file: 5.9% per year over 19 years.
Sales timeline
3 May 2018Most recent
£122,500
+60.1%over 14 years22 May 2003
£76,500
+80.0%over 3 years30 September 1999
£42,500
Median price across the last 5 sales in DL1 3RF: £135,000 (2025–2019).
Nearby sales in DL1 3RF
Versus other Castlebay Court homes
Price per m²
£1,914
Street avg £1,752
Floor Area
64 m²
Street avg 65 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
3.1 t/year
Street avg 3.4 t/year
Similar properties nearby
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







