Property Value Trends 1995-2026: 31M Transactions Analysed
We analysed over 31 million Land Registry transactions spanning three decades to understand how property values have shifted across England. The data reveals why extending your home can be the best investment decision — or a poor one — depending on where you live and what you already own.
TL;DR
Property values have grown substantially since 1995, but the growth is uneven. London terraced houses have seen the highest relative growth, with median prices 3-4x the national figure. This matters for extensions because the value of additional floor space scales with property value — a 20m² rear extension adds far more value in a £600,000 area than a £200,000 one, while build costs are only moderately higher. The result: extension ROI is strongest in higher-value areas, making London one of the best places in England to invest in extending your home.
~£360k
Detached median (national)
HM Land Registry
~£250k
Semi-detached median (national)
HM Land Registry
~£220k
Terraced median (national)
HM Land Registry
~£190k
Flat median (national)
HM Land Registry
Source: HM Land Registry Price Paid Data (2023-2026 transactions)
National Median Prices by Property Type
From the most recent three years of Land Registry data, here are the current national medians. These figures represent the midpoint — half of all transactions were above, half below.
| Property type | Median price | Share of transactions |
|---|---|---|
| Detached | ~£360,000 | ~22% |
| Semi-detached | ~£250,000 | ~26% |
| Terraced | ~£220,000 | ~29% |
| Flat / Maisonette | ~£190,000 | ~23% |
Source: HM Land Registry Price Paid Data • Data as of January 2023 - March 2026
Approximate figures based on full national dataset. Regional variation is substantial.
The London Premium
London property values are 2-4x national medians, with the premium varying significantly by property type. Terraced homes show the largest gap — a London terraced house typically sells for 3-4x the national median, reflecting intense demand for family homes in inner and outer London.
| Property type | National median | London median | London premium |
|---|---|---|---|
| Detached | ~£360,000 | ~£900,000 | ~2.5x |
| Semi-detached | ~£250,000 | ~£550,000 | ~2.2x |
| Terraced | ~£220,000 | ~£600,000 | ~2.7x |
| Flat / Maisonette | ~£190,000 | ~£400,000 | ~2.1x |
Source: HM Land Registry Price Paid Data • Data as of January 2023 - March 2026
The premium is even higher in inner London. Terraced house medians in boroughs like Hackney, Islington, and Wandsworth can reach £800,000-1,200,000 — roughly 4-5x the national median. Prime central London (Kensington and Chelsea, Westminster) pushes even further, with detached properties regularly exceeding £3 million.
Outer London boroughs like Bexley, Havering, and Barking and Dagenham are closer to 1.5-2x national medians, though still significantly above the rest of England.
Three Decades of Growth
The Land Registry dataset stretches back to January 1995. Over these 31 years, the pattern of growth has been remarkably consistent: property values have roughly quadrupled nationally, with London outpacing the rest of England.
| Period | Detached | Semi-detached | Terraced | Flat |
|---|---|---|---|---|
| Mid-1990s | ~£85,000 | ~£55,000 | ~£45,000 | ~£40,000 |
| Early 2000s | ~£180,000 | ~£120,000 | ~£100,000 | ~£95,000 |
| Pre-crash (2007) | ~£280,000 | ~£190,000 | ~£165,000 | ~£150,000 |
| Post-crash (2012) | ~£250,000 | ~£170,000 | ~£145,000 | ~£135,000 |
| Pre-COVID (2019) | ~£320,000 | ~£220,000 | ~£195,000 | ~£175,000 |
| Current (2023-26) | ~£360,000 | ~£250,000 | ~£220,000 | ~£190,000 |
Source: HM Land Registry Price Paid Data (national medians, approximate) • Data as of 1995 - 2026
Two key observations from the long-run data:
- 1.The 2008-2012 dip was shallow nationally. Median detached prices fell roughly 10-15% from peak to trough. Recovery to pre-crash levels took approximately 5-6 years. The dip was deeper in London but recovery was faster.
- 2.Growth has slowed since 2022. The rapid appreciation of 2020-2022 (driven by stamp duty holidays and pandemic-era demand for space) has given way to more modest growth. Interest rate rises in 2022-2024 cooled the market, particularly for flats and lower-value properties.
Why Property Values Matter for Extension ROI
The economics of extending are straightforward: you spend a fixed amount on construction, and the value added depends on the per-square-metre property value in your area. This creates a multiplier effect that strongly favours higher-value locations.
| Factor | London (inner) | Midlands town |
|---|---|---|
| Property value | ~£700,000 | ~£250,000 |
| Value per m² | ~£7,000/m² | ~£2,500/m² |
| 20m² extension build cost | ~£70,000 | ~£48,000 |
| Value of 20m² added | ~£100,000-140,000 | ~£35,000-50,000 |
| Net value gain | ~£30,000-70,000 | ~-£13,000 to £2,000 |
| ROI | 40-100% | -27% to 4% |
Source: Mayfair Studio analysis • Data as of 2026 estimates
Illustrative examples. Actual ROI depends on extension quality, specification, and local market conditions. Value added is typically 50-70% of the additional floor area's proportional value.
The key insight: in higher-value areas, the gap between build cost and value added is wide enough to deliver genuine ROI. In lower-value areas, build costs can equal or exceed the value added, making the extension financially neutral or negative as an investment (though still valuable for living space).
This is why London is the strongest market for home extensions. Build costs are 20-40% higher than the national average, but property values are 200-400% higher. The maths consistently favours extending in London.
Extend or Move: The Stamp Duty Question
The gap between property types is central to the extend-vs-move decision. Moving from a terraced house to a semi-detached in the same area typically costs the price difference plus stamp duty, estate agent fees, legal costs, and the disruption of moving.
- 1.National: terraced to semi gap is ~£30,000. At this gap, stamp duty on a £250,000 semi is £2,500 plus £5,000-10,000 in moving costs. An extension costing £50,000 would need to add less than £37,500 in value to break even vs moving — tight but achievable in most areas.
- 2.London: terraced to semi gap is ~£50,000 but stamp duty is higher. Stamp duty on a £550,000 semi is £17,500. Add £10,000-15,000 in moving costs and the total cost of moving is £77,500-82,500. An extension at £60,000-90,000 that avoids moving costs is almost always better value.
- 3.The emotional cost is often decisive. Schools, neighbours, commute, garden — the non-financial factors frequently tip the decision towards extending. The financial analysis supports this for most London homeowners.
Frequently Asked Questions
What is the average house price in England in 2026?
Based on Land Registry data, national median prices (2023-2026) are approximately: detached ~£360,000, semi-detached ~£250,000, terraced ~£220,000, flat ~£190,000. Regional variation is substantial, with London 2-4x higher than national figures.
How much more are London properties than the national average?
London commands a 2-4x premium over national medians depending on property type. Terraced homes show the largest gap at roughly 2.7x, reflecting intense demand for family homes. Inner London boroughs can reach 4-5x national medians.
Is extending my home a good investment?
In higher-value areas (London and the South East), extensions typically deliver positive ROI because the value of additional floor space exceeds build costs. In lower-value areas, extensions may not add enough value to justify the cost purely as an investment, though they still provide valuable living space.
How much has property grown since 1995?
National median prices have roughly quadrupled since 1995. A detached house that was ~£85,000 in the mid-1990s is ~£360,000 today. London has seen even higher growth, particularly for terraced houses and flats.
Is it cheaper to extend or move house?
In London, extending is almost always cheaper than moving when you factor in stamp duty (£15,000-50,000), estate agent fees, legal costs, and moving expenses. Nationally the calculation is tighter, but extensions avoid the hidden costs and disruption of moving.
Related Articles
Extension Costs by London Borough
Cost per m² compared across London boroughs.
London Borough Extension Report 2026
All 33 London boroughs ranked for extensions.
EPC Data & Extension Potential
How EPC data reveals extension opportunities.
Energy Ratings by London Borough
Borough-level EPC analysis for London.