23 Mill Lane, Portbury, Bristol, BS20 7TX
About 23 Mill Lane
23 Mill Lane is a four-bedroom end-of-terrace house in Portbury, Bristol, Bristol (BS20 7TX). It has a recorded floor area of 144 m² (around 1550 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (December 2025) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since September 2015. Between certificates, roof efficiency went from Very Poor to Poor and lighting went from Good to Very Good; while window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 77). This certificate was lodged in the last six months, so the rating reflects current condition. Period features are noted in the property record.
At 144 m² the property is well over the postcode median (55 m² across 18 EPCs), placing it in the larger end of the local stock. Across 1996–2016, sale prices on this property compounded at 8.5% per year. Today's modelled estimate of £641,000 sits 50.8% above the 2016 sale of £425,000. On a £-per-square-foot basis, the last sale (£274/sq ft) was about 50.9% above the typical sold price in the postcode. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. 10 years since the last transfer (March 2016).
Know exactly what you're buying at 23 Mill Lane
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms4
- Bathrooms2
- FireplaceYes
Outside
- Private gardenYes
- ParkingOff street
Building
- Period featuresYes
- RefurbishedYes
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
More low energy lighting installed
Planning history
- Apr 2004ExtensionFullIn report
Extension: Rear of property
Two storey extension and single storey kitchen extension
- Documents
- 4 docs on file
- Reference
- 04/P/0479/F
- Apr 2003ExtensionFullIn report
Erection of two storey side extension and single storey rear extension.
- Documents
- 3 docs on file
- Reference
- 03/P/0516/F
What's in 23 Mill Lane, Portbury, Bristol, BS20 7TX's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
Latest sale on 23 Mill Lane was the highest on Land Registry record across the postcode.
£641,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.5% per year over 20 years.
£425,000
Growth on file: 8.5% per year over 20 years.
Sales timeline
30 March 2016Most recent
£425,000
+415.2%over 20 years21 February 1996
£82,500
Median price across the last 5 sales in BS20 7TX: £180,000 (2021–2018).
Nearby sales in BS20 7TX
17 Mill Lane, Portbury, Bristol, BS20 7TX
Sold Jan 2021
£345,00037 Mill Lane, Portbury, Bristol, BS20 7TX
Sold Mar 2019
£122,50021 Mill Lane, Portbury, Bristol, BS20 7TX
Sold Aug 2018
£180,00031 Mill Lane, Portbury, Bristol, BS20 7TX
Sold Jun 2018
£135,0009 Mill Lane, Portbury, Bristol, BS20 7TX
Sold Apr 2018
£337,500
Everything we know about 23 Mill Lane, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Mill Lane homes
On floor area, 23 Mill Lane stands well clear of the street.
Price per m²
£2,951
Street avg £3,187
Floor Area
144 m²
Street avg 94 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.2 t/year
Street avg 5.3 t/year
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The neighbourhood at a glance
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Brittan Place — bus stop.
Closest school
0.4 km
St Mary's Church of England Primary School, Portbury. 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
55.8dB

Night-time· 23:00 – 07:00
48.1dB