3 Ashdown House, 11 Sydney Road, Guildford, GU1 3LL
About 3 Ashdown House
3 Ashdown House is a two-bedroom semi-detached house in Guildford (GU1 3LL). It has a recorded floor area of 45 m² (around 484 sq ft) and construction records dating it to 1983-1990. At 45 m² this is the smallest unit on EPC record across the building (45–58 m²). The latest certificate (November 2019) shows a C (score 76), near the top of the C band. Earlier certificates rated it B (June 2010); the latest reading is one band lower.
A recent sale: £345,000 in February 2025. 3 planning records sit against the property, 3 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. Across 2011–2025, sale prices on this property compounded at 3% per year. On a £-per-square-foot basis, the last sale (£712/sq ft) was about 126% above the typical sold price in the postcode. At 45 m² it's 18.2% smaller than the typical home in the postcode (55 m² median across 21 EPCs).
What this property has
Inside
- Bedrooms2
- Bathrooms2
- EnsuiteYes
Outside
- Communal gardenYes
- ParkingAllocated
Building
- RefurbishedYes
Energy performance
3 Ashdown House's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
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Planning history
Planning history at 3 Ashdown House is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
3 applications on record at 3 Ashdown House, 11 Sydney Road, Guildford, GU1 3LL
- Apr 2013Tree WorksTreesOutcome in report
Reduce to 1.5 m above top of wall row of self seeded Sycamore, Beech and Holly trees (R1), prune secondary branches to clear roof by 2 m 3 stemmed Robina (T1) (Waterden Rd Conservation Area)
Conservation Area- Documents
- 4 docs on file
- Reference
- 13/T/00065
- More recent applications — locked
- Tree WorksNov 2020Decision
- Tree WorksFeb 2017Decision
Unlock 3 Ashdown House, 11 Sydney Road, Guildford, GU1 3LL's full planning history
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- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 2 notable nearby
- The 12 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
3 Ashdown House valuation sits well clear of the typical sold price in this postcode.
£355,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.0% per year over 14 years.
£345,000
Growth on file: 3.0% per year over 14 years.
Sales timeline
21 February 2025Most recent
£345,000
+50.0%over 13 years19 June 2011
£230,000
Median price across the last 5 sales in GU1 3LL: £345,000 (2022–2021).
Nearby sales in GU1 3LL
34 Sydney Road, Guildford, GU1 3LL
Sold Nov 2022
£1,435,0005 Ashdown House, 11 Sydney Road, Guildford, GU1 3LL
Sold Oct 2022
£345,00024 Sydney Road, Guildford, GU1 3LL
Sold Jul 2022
£2,750,000Flat 3, 7 Sydney Road, Guildford, GU1 3LL
Sold Mar 2022
£267,500Flat 4, 7 Sydney Road, Guildford, GU1 3LL
Sold Dec 2021
£285,000
Versus other Sydney Road homes
On price per m², 3 Ashdown House stands well clear of the street.
Price per m²
£7,667
Street avg £4,729
Floor Area
45 m²
Street avg 49 m²
Habitable Rooms
3 rooms
Street avg 2 rooms
CO₂ Emissions
1.3 t/year
Street avg 2.8 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
27/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Waterden Road — bus stop.
Closest school
0.4 km
Holy Trinity, Guildford, CofE Aided Junior School. 20 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
49.0dB

Night-time· 23:00 – 07:00
40.2dB







