18b, Basedale Road, Dagenham, RM9 4QA
About 18b
18b is a semi-detached house in Dagenham (RM9 4QA). It has a recorded floor area of 73 m² (around 786 sq ft) and construction records dating it to 2022. The latest certificate (December 2022) returns a B (score 84), comfortably above the UK average. The recommended improvements would push it to A (score 96).
On energy efficiency it sits in the top 10% of properties in this postcode. On a £-per-square-foot basis, the last sale (£556/sq ft) was about 115.8% above the typical sold price in the postcode. One planning record on file: a loft conversion refused in 2023. Sold March 2023 for £437,000.
Know exactly what you're buying at 18b
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
Energy performance
18b ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Planning history
A a loft conversion application was refused at 18b in 2023.
- Aug 2023Loft ConversionFullIn report
Construction of a rear and side dormer extension including two roof lights to the front to facilitate conversion of roof space into habitable accommodation
- Documents
- 11 docs on file
- Reference
- 23/00942/HSE
We flagged 1 thing worth checking at 18b
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.
- A planning decision worth checking
30-day money-back guarantee
Sales history & valuation
18b valuation sits well clear of the typical sold price in this postcode.
£434,000
Modelled from EPC, postcode comparables.
£437,000
Recorded with HM Land Registry.
Sales timeline
9 March 2023Most recent
£437,000
Median price across the last 5 sales in RM9 4QA: £360,000 (2025–2022).
Nearby sales in RM9 4QA
Everything we know about 18b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- A planning decision worth checking

Versus other Basedale Road homes
On price per m², 18b stands well clear of the street.
Price per m²
£5,986
Street avg £3,529
Floor Area
73 m²
Street avg 75 m²
CO₂ Emissions
1.0 t/year
Street avg 3.2 t/year
Years Held
3 years
Street avg 11 years
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
16/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Porters Avenue — bus stop.
Closest school
0.5 km
Monteagle Primary School. 58 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
51.9dB

Night-time· 23:00 – 07:00
43.3dB