3 Oak Tree Cottages, Main Street, Grendon Underwood, Aylesbury, HP18 0SH
About 3 Oak Tree Cottages
3 Oak Tree Cottages is a three-bedroom semi-detached house in Grendon Underwood, Aylesbury, Aylesbury (HP18 0SH). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (May 2025) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78). Main heating runs on oil. Our model identifies extension potential, subject to local planning policy.
Untraded for 27 years, with the last transfer in March 1999. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. 2 planning records sit against the property, 0 approved, 0 refused, 2 pending. An active application for an extension is awaiting a decision. Today's modelled estimate of £348,000 sits 992.6% above the 1999 sale of £31,850. On a £-per-square-foot basis, the last sale (£34/sq ft) was about 89.4% below the postcode norm. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs).
What this property has
Inside
- Bedrooms3
- Bathrooms2
- CloakroomYes
Outside
- Private gardenRear
Building
- Extension potentialPossible
Energy performance
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
There is a planning application currently awaiting a decision.
2 applications on record at 3 Oak Tree Cottages, Main Street, Grendon Underwood, Aylesbury, HP18 0SH
2 live now- Dec 2025ExtensionFullOutcome in report
Extension: Side and rear of property
Proposed demolition of existing side/rear extension, erection of new single storey side/rear extension and two storey rear extension. Formation of new vehicular access and driveway to front of property
- Documents
- 4 docs on file
- Reference
- PL/25/6240/FA
- More recent applications — locked
- ExtensionApr 2026Decision
Unlock 3 Oak Tree Cottages, Main Street, Grendon Underwood, Aylesbury, HP18 0SH's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn
- All 2 applications on this property in full
- The 8 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 3 Oak Tree Cottages was the lowest on Land Registry record across the postcode.
£348,000
Modelled from EPC, postcode comparables.
£31,850
Recorded with HM Land Registry.
Sales timeline
28 March 1999Most recent
£31,850
Median price across the last 5 sales in HP18 0SH: £403,000 (2024–2017).
Nearby sales in HP18 0SH
5 Oak Tree Cottages, Main Street, Grendon Underwood, Aylesbury, HP18 0SH
Sold May 2024
£455,0007 Oak Tree Cottages, Main Street, Grendon Underwood, Aylesbury, HP18 0SH
Sold Dec 2021
£360,0002 Oak Tree Cottages, Main Street, Grendon Underwood, Aylesbury, HP18 0SH
Sold Apr 2021
£403,000Woodville, Main Street, Grendon Underwood, Aylesbury, HP18 0SH
Sold Jul 2020
£387,000The Meal House, Main Street, Grendon Underwood, Aylesbury, HP18 0SH
Sold Mar 2017
£630,000
Versus other Main Street homes
Price per m² for 3 Oak Tree Cottages lags the street by a wide margin.
Price per m²
£370
Street avg £3,638
Floor Area
86 m²
Street avg 109 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
4.3 t/year
Street avg 7.6 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Oak Tree Cottages — bus stop.
Closest school
1.0 km
Grendon Underwood School. 1 school 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
42.2dB

Night-time· 23:00 – 07:00
35.6dB







