Alliance House, Apartment 6, 9 Leopold Street, Sheffield, S1 2GY
About Alliance House
Alliance House is a mid-terrace house in Sheffield (S1 2GY). It has a recorded floor area of 67 m² (around 721 sq ft) and construction records dating it to 2012 onwards. The latest certificate (June 2025) returns a B (score 82), comfortably above the UK average. When first surveyed in January 2015 the rating was C, the property has climbed 1 band since. Between certificates, wall efficiency went from Good to Very Good, hot-water efficiency went from Average to Good and main heating went from Average to Good. At 67 m² this is the 5th smallest of 10 units on EPC record in Alliance House, where floor areas span 63–67 m². The building's EPC ratings span C to B, with this unit at the top. On EPC score it ranks first in the building (82 versus a worst of 72).
On energy efficiency it sits in the top 10% of properties in this postcode. 4 planning records sit against the property, 4 approved, 0 refused. Past consents include new windows, change of use to residential and an extension, meaningful when judging how the property has evolved.
Know exactly what you're buying at Alliance 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
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Alliance House ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
Wall insulation upgraded
Planning history
Alliance House has been through 4 approved planning applications — a well-evolved property.
- Dec 2022RenovationFullIn report
Replacement of shop front with folding double-glazed window, aluminium frame and new entrance door
New Windows- Documents
- 20 docs on file
- Reference
- 22/03058/FUL
- Mar 2016Change Of UseFullIn report
Use of retail unit (Use Class A1) as gourmet burger restaurant (Use Class A3) and siting of associated extraction system
- Documents
- 16 docs on file
- Reference
- 16/00055/FUL
We flagged 2 things worth checking at Alliance 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
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Sales history & valuation
Alliance House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£162,000
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.
Everything we know about Alliance 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
Versus other Leopold Street homes
On epc rating, Alliance House stands well clear of the street.
EPC Rating
82 (B)
Street avg 73 (C)
Floor Area
67 m²
Street avg 60 m²
CO₂ Emissions
1.4 t/year
Street avg 1.3 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Similar properties nearby
Alliance House, Apartment 8, 9 Leopold Street
S1 2GY
Alliance House, Apartment 3, 9 Leopold Street
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Alliance House, Apartment 7, 9 Leopold Street
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Alliance House, Apartment 4, 9 Leopold Street
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Alliance House, Apartment 2, 9 Leopold Street
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Alliance House, Apartment 9, 9 Leopold Street
S1 2GY
Alliance House, Apartment 1, 9 Leopold Street
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Alliance House, Apartment 10, 9 Leopold Street
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Leopold Street/City Hall CH1 — bus stop.
Closest school
0.8 km
Springfield Primary School. 33 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
56.3dB
Night-time· 23:00 – 07:00
43.8dB