21 Mill Lane, Portbury, Bristol, BS20 7TX
About 21 Mill Lane
21 Mill Lane is a mid-terrace house in Portbury, Bristol, Bristol (BS20 7TX). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (May 2014) shows an F (score 38), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 91), a 4-band jump. Main heating runs on oil. The latest certificate is from May 2014, so improvements made since then won't be reflected.
At 94 m² the property is well over the postcode median (55 m² across 18 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2014–2018, sale prices on this property compounded at 3.3% per year. Today's modelled estimate of £318,000 sits 76.7% above the 2018 sale of £180,000. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last sale on file: £180,000 in August 2018.
Know exactly what you're buying at 21 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
Energy performance
21 Mill Lane sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 28 May 2024
EPC Rating
Planning history
Council records include a two-storey rear extension at 21 Mill Lane.
- Nov 2018AmendmentIn report
Variation of condition 2 on 17/P/5581/FUH (Erection of a two storey rear extension) to raise the level of the eaves on the North elevation of the extension to the level of the existing.
- Documents
- 4 docs on file
- Reference
- 18/P/4240/MMA
- Feb 2018ExtensionFullIn report
Extension: Two storey · Rear of property
Erection of a two storey rear extension
- Documents
- 8 docs on file
- Reference
- 17/P/5581/FUH
What's in 21 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
21 Mill Lane valuation sits well clear of the typical sold price in this postcode.
£318,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.3% per year over 4 years.
£180,000
Growth on file: 3.3% per year over 4 years.
Sales timeline
29 August 2018Most recent
£180,000
+13.9%over 4 years25 August 2014
£158,000
Median price across the last 5 sales in BS20 7TX: £337,500 (2021–2016).
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
£122,50031 Mill Lane, Portbury, Bristol, BS20 7TX
Sold Jun 2018
£135,0009 Mill Lane, Portbury, Bristol, BS20 7TX
Sold Apr 2018
£337,50023 Mill Lane, Portbury, Bristol, BS20 7TX
Sold Mar 2016
£425,000
Everything we know about 21 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
21 Mill Lane is notably below the street on epc rating.
Price per m²
£1,915
Street avg £3,335
Floor Area
94 m²
Street avg 100 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
8.0 t/year
Street avg 4.8 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