18b, Castlemaine Road, Weymouth, DT3 6RQ
About 18b
18b is a semi-detached house in Weymouth (DT3 6RQ). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1967-1975 and council tax band A. At 71 m² this is the 6th smallest of 32 units on EPC record in the building, where floor areas span 50–102 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (May 2019) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75).
Last sale on file: £120,000 in July 2019. Across the public record there are 4 sales, relatively high churn for a single property. It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs). Across 1997–2019, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £165,000 is 37.5% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£157/sq ft) was about 55% above the typical sold price in the postcode.
Energy performance
EPC Rating
Planning history
18b has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
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.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
18b has more than quadrupled in price since its earliest registered sale in 1997.
£165,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 23 years.
£120,000
Growth on file: 6.4% per year over 23 years.
Sales timeline
21 July 2019Most recent
£120,000
+216.2%over 20 years13 August 1998
£37,950
+26.5%over 10 months15 October 1997
£29,995
13 January 1997
£29,995
Median price across the last 5 sales in DT3 6RQ: £220,000 (2025–2020).
Nearby sales in DT3 6RQ
Versus other Castlemaine Road homes
On epc rating, 18b runs well behind the street norm.
Price per m²
£1,690
Street avg £1,508
Floor Area
71 m²
Street avg 71 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
2.9 t/year
Street avg 2.0 t/year
Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Top Club — bus stop.
Closest school
0.2 km
Bincombe Valley Primary School. 8 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
47.3dB

Night-time· 23:00 – 07:00
38.9dB







