23 Duncan Street, Sunderland, SR4 6QR
About 23 Duncan Street
23 Duncan Street is a mid-terrace house in Sunderland (SR4 6QR). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (November 2025) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in October 2013 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good; while window efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 82), a 2-band jump.
Across 2006–2019, sale prices on this property compounded at -0.7% per year. Today's modelled estimate of £114,000 sits 103.9% above the 2019 sale of £55,900. On a £-per-square-foot basis, the last sale (£67/sq ft) was about 19.8% above the typical sold price in the postcode. Last sale on file: £55,900 in August 2019.
Know exactly what you're buying at 23 Duncan 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
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
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 changed
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
23 Duncan Street has no planning applications on record.
Notable planning nearby
1applications of note in the surrounding area
We flagged 1 thing worth checking at 23 Duncan 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.
- Recent ownership pattern worth a look
30-day money-back guarantee
Sales history & valuation
23 Duncan Street changed hands twice within eighteen months — unusual for the area.
£114,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.7% per year over 13 years.
£55,900
Growth on file: -0.7% per year over 13 years.
Sales timeline
8 August 2019Most recent
£55,900
+33.1%over 10 months8 October 2018
£42,000
-31.7%over 12 years29 June 2006
£61,500
Median price across the last 5 sales in SR4 6QR: £60,000 (2025–2024).
Nearby sales in SR4 6QR
Everything we know about 23 Duncan 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
- Recent ownership pattern worth a look
Versus other Duncan Street homes
Habitable Rooms for 23 Duncan Street runs comfortably ahead of the street norm.
Price per m²
£717
Street avg £808
Floor Area
78 m²
Street avg 70 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
3.1 t/year
Street avg 4.0 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
St Lukes Terrace — bus stop.
Closest school
0.2 km
Diamond Hall Infant Academy. 35 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
55.4dB
Night-time· 23:00 – 07:00
43.0dB