21 Alderson Street, Bishop Auckland, DL14 6HR
About 21 Alderson Street
21 Alderson Street is a mid-terrace house in Bishop Auckland (DL14 6HR). It has a recorded floor area of 116 m² (around 1249 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (July 2019) shows a C (score 71). When first surveyed in February 2009 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Poor to Average and lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 87).
Across 1995–2022, sale prices on this property compounded at 2.8% per year. Today's modelled estimate of £115,000 sits 67.9% above the 2022 sale of £68,500. At 116 m² it's 26.1% larger than the typical home in the postcode (92 m² median across 17 EPCs). Most recent transfer: August 2022 at £68,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 21 Alderson Street
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
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Roof insulation improved
More low energy lighting installed
Planning history
21 Alderson Street has no planning applications on record.
Notable planning nearby
4applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Alderson Street
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
Sale price has at least doubled since 1995.
£115,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.8% per year over 27 years.
£68,500
Growth on file: 2.8% per year over 27 years.
Sales timeline
1 August 2022Most recent
£68,500
-27.9%over 14 years25 March 2008
£95,000
+30.1%over 3 years31 January 2005
£73,000
+54.7%over 10 months24 March 2004
£47,200
+43.0%over 8 years5 October 1995
£33,000
Median price across the last 5 sales in DL14 6HR: £75,000 (2025–2023).
Nearby sales in DL14 6HR
16 Alderson Street, Bishop Auckland, DL14 6HR
Sold Jun 2025
£66,00026 Alderson Street, Bishop Auckland, DL14 6HR
Sold Aug 2024
£75,0001 Alderson Street, Bishop Auckland, DL14 6HR
Sold May 2024
£75,0003 Alderson Street, Bishop Auckland, DL14 6HR
Sold Feb 2024
£65,00013 Alderson Street, Bishop Auckland, DL14 6HR
Sold Oct 2023
£90,000
Everything we know about 21 Alderson Street, 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 Alderson Street homes
21 Alderson Street outperforms the street on epc rating by a wide margin.
Price per m²
£591
Street avg £651
Floor Area
116 m²
Street avg 96 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
4.3 t/year
Street avg 5.6 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Cockton Hill Club — bus stop.
Closest school
0.2 km
Cockton Hill Junior School. 15 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
54.0dB

Night-time· 23:00 – 07:00
42.6dB