17 Underlane, Plympton, Plymouth, PL7 1QU
About 17 Underlane
17 Underlane is a three-bedroom semi-detached house in Plympton, Plymouth, Plymouth (PL7 1QU). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (July 2026) shows a D (score 57), a step below the typical UK home. When first surveyed in September 2017 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, hot-water efficiency went from Very Poor to Good and main heating went from Average to Good; while window efficiency dropped from Good to Average and lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 71). This certificate was lodged in the last six months, so the rating reflects current condition.
Today's modelled estimate of £276,000 sits 67.3% above the 2017 sale of £165,000. One planning record on file: an extension approved in 2018. Past consents include an extension, meaningful when judging how the property has evolved. At 101 m² it's 16.8% larger than the typical home in the postcode (87 m² median across 18 EPCs). Last sold in December 2017, so it's been off the market for around 9 years.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
Outside
- Private gardenYes
Building
- Heating systemElectric
- RefurbishedYes
Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Certificate validity
Valid until 21 July 2036
Property Improvements
Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Wall insulation improved
More low energy lighting installed
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Planning history
17 Underlane has an approved single-storey rear extension on the planning record.
1 application on record at 17 Underlane, Plympton, Plymouth, PL7 1QU
- Aug 2018ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
A single-storey rear extension which extends beyond the rear wall of the original dwellinghouse by 3.6m, has a maximum height of 3.0m, and has an eaves height of 2.6m
- Reference
- 18/01085/GP1
Unlock 17 Underlane, Plympton, Plymouth, PL7 1QU's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full
- What the pattern means for extending or converting here
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Sales history & valuation
17 Underlane valuation sits well clear of the typical sold price in this postcode.
£276,000
Modelled from EPC, postcode comparables.
£165,000
Recorded with HM Land Registry.
Sales timeline
21 December 2017Most recent
£165,000
Median price across the last 5 sales in PL7 1QU: £200,000 (2025–2018).
Nearby sales in PL7 1QU
13 Underlane, Plympton, Plymouth, PL7 1QU
Sold Mar 2025
£390,00026 Underlane, Plympton, Plymouth, PL7 1QU
Sold Jun 2022
£495,00029 Underlane, Plympton, Plymouth, PL7 1QU
Sold Jul 2018
£185,00015 Underlane, Plympton, Plymouth, PL7 1QU
Sold Jan 2018
£187,00021 Underlane, Plympton, Plymouth, PL7 1QU
Sold Feb 2015
£179,000
Versus other Underlane homes
On epc rating, 17 Underlane runs well behind the street norm.
Price per m²
£1,634
Street avg £2,208
Floor Area
101 m²
Street avg 89 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
3.8 t/year
Street avg 3.3 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
99/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Merafield Rise — bus stop.
Closest school
0.4 km
Plympton St Mary's CofE Infant School. 14 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
48.3dB

Night-time· 23:00 – 07:00
38.9dB







