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Get startedSiren House, Flat 12, 18 Ladymead, Guildford, GU1 1FL
About Siren House
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Siren House is a semi-detached house in Guildford (GU1 1FL). It has a recorded floor area of 46 m² (around 495 sq ft) and construction records dating it to 2012-2021. At 46 m² this is the smallest unit on EPC record across Siren House (46–49 m²). The building's EPC ratings span C to B, with this unit at the bottom. On EPC score it ranks last in the building (73 versus a best of 84). The latest certificate (February 2026) shows a C (score 73). Earlier certificates rated it B (November 2019); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and roof efficiency dropped from Very Good to Good. This certificate was lodged in the last six months, so the rating reflects current condition.
It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs).
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Siren House's carbon output is low for the local stock.
Current Certificate(1 of 2)
Feb 2026
EPC Rating
A
B
C
C73
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
1.1 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.
Siren 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£236,000
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.
Versus other Ladymead homes
Four headline reads against 11 similar flats on this street, drawn from the latest EPC and Land Registry data.
Siren House is notably below the street on epc rating.
EPC Rating
73 (C)
Street avg 80 (C)
Floor Area
46 m²
Street avg 48 m²
CO₂ Emissions
1.1 t/year
Street avg 0.8 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 Guildford district page.
Crime
27/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Guildford College — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around GU1 1FL from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
59.6dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 51 points of interest in total.
Beautiful places to visit nearby
Curated scenic spots within reach of this postcode, served by Beautifulplaces.ai. Photography and tagging come from their open dataset.
Common questions
The questions buyers, sellers and homeowners most often ask about Siren House, Flat 12, 18 Ladymead, Guildford, GU1 1FL. Each answer is also embedded as structured data for search engines.