Opera House, Flat 3, 23 Derby Street, Weymouth, DT4 7HX
About Opera House
Opera House is a two-bedroom mid-terrace house in Weymouth (DT4 7HX). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to 2003-2006 and council tax band C. The latest certificate (March 2020) returns a B (score 83), comfortably above the UK average. The rating has held steady at B across 2 certificates since November 2008. Between certificates, lighting went from Good to Very Good. At 60 m² this is the 4th smallest of 6 units on EPC record in Opera House, where floor areas span 41–61 m². The building's EPC ratings span E to B, with this unit at the top. On EPC score it ranks first in the building (83 versus a worst of 50).
On energy efficiency it sits in the top 10% of properties in this postcode. Across 2005–2021, sale prices on this property compounded at -0.8% per year. Today's modelled estimate of £146,000 is 12.3% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£201/sq ft) was about 32.8% above the typical sold price in the postcode. Sold September 2021 for £130,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Opera House
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
- Bedrooms2
- Bathrooms2
Energy performance
Opera House ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
Opera House has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 3 things worth checking at Opera House
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
- Larger development activity nearby
- Environmental risk flagged
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Sales history & valuation
Opera House's sale-price growth has lagged the wider UK trajectory across its history on file.
£146,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.8% per year over 16 years.
£130,000
Growth on file: -0.8% per year over 16 years.
Sales timeline
9 September 2021Most recent
£130,000
-11.9%over 16 years10 May 2005
£147,500
Median price across the last 5 sales in DT4 7HX: £235,000 (2025–2022).
Nearby sales in DT4 7HX
Everything we know about Opera House, 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
- Larger development activity nearby
- Environmental risk flagged

Versus other Derby Street homes
EPC Rating for Opera House runs comfortably ahead of the street norm.
Price per m²
£2,167
Street avg £2,288
Floor Area
60 m²
Street avg 46 m²
Habitable Rooms
3 rooms
Street avg 2 rooms
CO₂ Emissions
0.9 t/year
Street avg 2.2 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
7/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Weymouth Rail Station — railway station.
Closest school
0.8 km
Coastland College. 12 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
53.5dB

Night-time· 23:00 – 07:00
43.7dB