3 Cornwall Avenue, Welling, DA16 2PR
About 3 Cornwall Avenue
3 Cornwall Avenue is a five-bedroom semi-detached house in Welling (DA16 2PR). It has a recorded floor area of 130 m² (around 1399 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (May 2022) shows a C (score 73). When first surveyed in February 2015 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Good and lighting went from Average to Very Good. The recommended improvements would push it to B (score 85). It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.
At 130 m² the property is well over the postcode median (89 m² across 20 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 5 bedrooms is on the larger side for this postcode, where 4 is the typical count. One planning record on file: an extension approved in 2021. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £789,000 is 11.9% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£504/sq ft) was about 34.5% above the typical sold price in the postcode. Sold August 2022 for £705,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 3 Cornwall Avenue
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms5
- Bathrooms2
- Open-plan layoutYes
- Dining roomYes
Outside
- Private gardenRear
- GarageYes
Building
- Previously extendedYes
- RefurbishedYes
- Extension potentialPossible
Energy performance
3 Cornwall Avenue ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
3 Cornwall Avenue has an approved single-storey side and rear extension on the planning record.
- Sept 2021ExtensionFullIn report
Extension: Single storey · Side and rear of property
First floor side and rear extension, single storey rear extension
- Documents
- 4 docs on file
- Reference
- 21/01912/FUL
We flagged 1 thing worth checking at 3 Cornwall Avenue
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.
- Signs of HMO activity in the area
30-day money-back guarantee
Sales history & valuation
Latest sale on 3 Cornwall Avenue was the highest on Land Registry record across the postcode.
£789,000
Modelled from EPC, postcode comparables.
£705,000
Recorded with HM Land Registry.
Sales timeline
9 August 2022Most recent
£705,000
Median price across the last 5 sales in DA16 2PR: £470,000 (2025–2023).
Nearby sales in DA16 2PR
Everything we know about 3 Cornwall Avenue, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area

Versus other Cornwall Avenue homes
EPC Rating for 3 Cornwall Avenue runs comfortably ahead of the street norm.
Price per m²
£5,423
Street avg £5,033
Floor Area
130 m²
Street avg 91 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
3.7 t/year
Street avg 4.6 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Cambridge Avenue (DA16) — bus stop.
Closest school
0.4 km
Bishop Ridley Church of England VA Primary School. 46 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
53.8dB

Night-time· 23:00 – 07:00
44.1dB