Flat, 20 Marlborough Street, Plymouth, PL1 4AH
About Flat
Flat is a mid-terrace house in Plymouth (PL1 4AH). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (March 2025) shows a C (score 71). Earlier certificates rated it B (March 2009); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Very Good to Good. At 37 m² this is the 3rd smallest of 41 units on EPC record in the building, where floor areas span 24–115 m². The building's EPC ratings span F to B across 41 units on file.
It hasn't traded since November 2001, a hold of 25 years that's notably long for the area. Across 1998–2001, sale prices on this property compounded at 13.3% per year. Today's modelled estimate of £122,000 sits 205% above the 2001 sale of £40,000. One planning record on file: subdivision approved in 2002. Past consents include subdivision, meaningful when judging how the property has evolved.
Energy performance
Flat's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Low energy lighting percentage decreased
Loft insulation installed or upgraded to 250mm+
Heating controls upgraded for better temperature management
Window efficiency improved
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
1 application on record at Flat, 20 Marlborough Street, Plymouth, PL1 4AH
- Dec 2002SubdivisionFullOutcome in report
Change of use and conversion of 1st, 2nd and 3rd floors from single dwelling to three self contained flats
- Reference
- 02/01246/FUL
Unlock Flat, 20 Marlborough Street, Plymouth, PL1 4AH's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 2 notable nearby
- What the pattern means for extending or converting here
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Sales history & valuation
Flat's modelled value sits at over four times its earliest registered sale price (1998).
£122,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.3% per year over 3 years.
£40,000
Growth on file: 13.3% per year over 3 years.
Sales timeline
16 November 2001Most recent
£40,000
+45.5%over 2 years18 November 1998
£27,500
Median price across the last 5 sales in PL1 4AH: £90,000 (2018–2001).
Versus other Marlborough Street homes
Flat is notably below the street on floor area.
Price per m²
£1,081
Street avg £1,212
Floor Area
37 m²
Street avg 47 m²
Habitable Rooms
3 rooms
Street avg 2 rooms
CO₂ Emissions
1.5 t/year
Street avg 1.7 t/year
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Granby Green — bus stop.
Closest school
0.1 km
Marlborough Primary Academy. 30 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
50.4dB

Night-time· 23:00 – 07:00
40.9dB







