Blackwell House, Hogs Back, Guildford, GU3 1DF
About Blackwell House
Blackwell House is a detached house in Guildford (GU3 1DF). It has a recorded floor area of 508 m² (around 5468 sq ft) and construction records dating it to before 1900. The latest certificate (July 2022) shows an F (score 33), near the bottom of the EPC scale. Earlier certificates rated it D (November 2008); the latest reading is 2 bands lower. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Average to Good and lighting went from Average to Very Good; while window efficiency dropped from Average to Poor and hot-water efficiency dropped from Very Good to Poor. The recommended improvements would push it to E (score 52). Main heating runs on lpg.
At 508 m² the property is well over the postcode median (61 m² across 5 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. One planning record on file: an extension approved in 2005. Past consents include an extension, meaningful when judging how the property has evolved.
Energy performance
Blackwell House sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Fuel source changed
Hot water efficiency decreased
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, is a large detached home over 300m², and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £2,095 · Includes VAT
Planning history
Council records include a two-storey extension at Blackwell House.
1 application on record at Blackwell House, Hogs Back, Guildford, GU3 1DF
- Jul 2005ExtensionFullOutcome in report
Extension: Two storey
Erection of a two storey extension.
- Documents
- 1 doc on file
- Reference
- 05/P/01171
Unlock Blackwell House, Hogs Back, Guildford, GU3 1DF's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 1 notable nearby
- The 1 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
Blackwell House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£2,541,000
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 Hogs Back homes
Blackwell House is notably below the street on epc rating.
EPC Rating
33 (F)
Street avg 48 (E)
Floor Area
508 m²
Street avg 69 m²
CO₂ Emissions
17.0 t/year
Street avg 4.4 t/year
Habitable Rooms
13 rooms
Street avg 4 rooms
Similar properties nearby
1 Brook House, New Pond Road, Compton
GU3 1JL
1 Oakdene Place, Peasmarsh
GU3 1NJ
1 Brook Cottages, New Pond Road, Compton
GU3 1HX
1 Hook Lane, Puttenham
GU3 1AN
1 Manor Cottages, Hook Lane, Puttenham
GU3 1AW
1 Hops End, Puttenham
GU3 1AE
1 Moat Cottages, Loseley Park
GU3 1HL
1 Coneycroft Farm Cottages, Down Lane, Compton
GU3 1DN
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.8 km
Francis Crick Road — bus stop.
Closest school
1.3 km
Guildford Grove Primary School. 8 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
43.6dB

Night-time· 23:00 – 07:00
37.2dB







