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Get startedBalchen House, Flat 11, Bishop Street, Portsmouth, PO1 3DG
About Balchen House
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Balchen House is a mid-terrace house in Portsmouth (PO1 3DG). It has a recorded floor area of 69 m² (around 743 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (December 2025) shows a C (score 78), near the top of the C band. When first surveyed in May 2024 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good and roof efficiency went from Very Poor to Good; while window efficiency dropped from Good to Poor and lighting dropped from Very Good to Good. This certificate was lodged in the last six months, so the rating reflects current condition.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Balchen House's carbon output is low for the local stock.
Current Certificate(1 of 2)
Dec 2025
EPC Rating
A
B
C
C78
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
1.4 t/year
Occupancy
Rented
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Balchen House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
Current estimate
See how we calculated this£161,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
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The complete analysis of Balchen House, Flat 11, Bishop Street, Portsmouth, PO1 3DG
Everything we know about this property, compiled into one in-depth, downloadable report.
Versus other Bishop Street homes
Four headline reads against 11 similar flats on this street, drawn from the latest EPC and Land Registry data.
Balchen House outperforms the street on co₂ emissions by a wide margin.
EPC Rating
78 (C)
Street avg 74 (C)
Floor Area
69 m²
Street avg 78 m²
CO₂ Emissions
1.4 t/year
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Portsmouth district page.
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Curzon Howe Road — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around PO1 3DG from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
50.7dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 64 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about Balchen House, Flat 11, Bishop Street, Portsmouth, PO1 3DG. Each answer is also embedded as structured data for search engines.