What percentage of homes in Tonbridge are below EPC band C?

54.4% of rated homes in Tonbridge are below EPC band C (as of 2026-Q2) — 13,517 of 24,833 rated dwellings. Source: The Home Index, from EPC Open Data under the Open Government Licence.

How many homes in Tonbridge need upgrading to reach EPC band C?

13,517 rated dwellings in Tonbridge sit below EPC band C and would need improvement to reach the band-C standard.

How does Tonbridge rank for the EPC band C retrofit gap?

Tonbridge ranks #146 for the widest retrofit gap among constituency areas in England and Wales.

Constituency diagnosis

Tonbridge

Name: The Home Index — Tonbridge
Creator: The Home Index
License: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

E14001549vintage 2026-Q2#146 by retrofit gap

Constituency figures use the 2024 Westminster; comparisons are only valid within one boundary vintage.

In Tonbridge, 13,517 rated homes sit below EPC band C. That puts the area at #146 for the widest gap among constituency areas in England & Wales.

Direction of travel

On current pace, reaches band C by 2068

Projection from the 15-year rated-stock trend; not a forecast.

Retrofit gap

54.4%

of 24,833 rated domestic dwellings are below band C.

EPC Open Data · Open Government Licence · free to cite with attribution.

Homes below band C

13,517

League rank

#146

1 = widest gap.

Cost to reach band C

£121.1m(modelled estimate of the cost to reach band C)

Position and trajectory

Is the gap closing?

The latest position for Tonbridge, set against the recent direction of travel.

Fig.1Retrofit gap over time

Stock · year-end

Share of Tonbridge's rated dwellings below band C at each year-end, ending at its headline 54.4%. Tracks every home by its latest certificate. EPC register.

Land Registry × EPC — matched-sale signals

What is at stake in the local market

We match HM Land Registry sales to EPC certificates: price per m², below-C matched-sale exposure, the observed C-or-above price/m² spread, and transaction-rate signals. Modelled estimates, shown with match coverage; not valuations. Methodology

Matched-sale exposure

£5.1bn

estimate for below-C stock; not a valuation.

Median sale price

£490k

typical matched sale here.

Matched sale £/m²

£4,951/m²

median, from matched sales.

53.7% coverageMatched-sale estimate from recent HM Land Registry sales. Not a valuation. Methodology.

Matched sale £/m²

£4,951/m²

Matched-sale exposure

£5.1bnmatched-sale estimate of below-C rated stock value; not a valuation

C+ price/m² spread

-6.2%

Below-C transaction rate

1.01×

Private rented sector

The rented-stock cut

56.7% (based on 85.8% tenure coverage)

Make it specific

Area averages cannot tell you what one home needs.

Check a real address in Tonbridge for its EPC, running costs, route to band C and available support. Landlords can then compare that home across a portfolio.

Check a home →Check a portfolio →

Prefer a general estimate? Model a home type in the cost calculator.

For local reporters: this is Tonbridge's citable figure — copy the line below or embed the live widget, free to use with attribution.

Cite this figure / embed

Citation

The Home Index (2026-Q2): Tonbridge has a retrofit gap of 54.4% — the share of rated homes below EPC band C. Source: EPC Open Data (Open Government Licence).

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