EPC C by 2030: What It Costs Landlords by Property Type
The EPC C 2030 landlord cost for a typical cavity-wall rental starting in band D is £550 to £2,800 at September 2026 prices, most of it loft and cavity insulation. A solid-wall Victorian terrace is the expensive case at £6,550 to £12,800, hence the £10,000 cap and 10-year exemption. Every private tenancy in England and Wales must meet the standard by 1 October 2030, and spend since 1 October 2025 counts towards the cap. The EPC C by 2030 planner does the same for your own address.
In this guide
Landlord EPC requirements 2030: the rule in full The £10,000 cap, what counts and the exemption register What each measure costs and scores EPC C 2030 landlord cost by property type When to do the work How the spend is taxed What happens if you do nothing Frequently asked questions SourcesLandlord EPC requirements 2030: the rule in full
Today the minimum for a private rental in England and Wales is band E: since 1 April 2020 a landlord cannot let an F or G property without a registered exemption, the cap for that rule is £3,500 including VAT and the maximum fine is £5,000 per property in total. The government's response on raising the standard was published on 21 January 2026, with the amended regulations intended to be in force in 2027. The main points:
- One date. All tenancies in scope must comply by 1 October 2030; there is no earlier date for new tenancies.
- Dual metric, fabric first. First a fabric performance standard (insulation, glazing, airtightness), then either the heating system metric or the smart readiness metric, at the landlord's choice.
- A C on the current metric still counts. C or higher on the existing Energy Efficiency Rating, on an EPC issued before 1 October 2029, is compliant until that certificate expires or is replaced; an EPC lasts 10 years.
- Otherwise, a new EPC first. A property not at C by then needs an EPC on the new metrics before finishing the work; the government aimed to issue those from October 2026.
- A £10,000 cap, a 10-year exemption and a bigger penalty: up to £30,000 per breach per property, against £5,000 today.
A rental that reaches C on its current EPC before October 2029 is done. With no certificate, an assessment costs £60 to £120 (see the EPC cost guide) and is the first thing to buy.
The £10,000 cap, what counts and the exemption register
Landlords will be required to invest up to £10,000 per property; one who has spent to the cap on relevant improvements and still falls short can register a cost cap exemption lasting 10 years, provided the spend can be proved. What counts:
- Spend since 1 October 2025 on relevant measures.
- Reasonable EPC assessment costs.
- Grants, with one exception. Third-party and government funding counts, except Boiler Upgrade Scheme money. A £12,000 heat pump with a £7,500 grant counts as £4,500.
- Relevant measures only: improvements recommended on the EPC or an assessor's report, not redecoration afterwards.
The response also lists high cost, all relevant improvements made, property value adjustment, solid wall insulation, negative impacts, third-party consent and new landlord exemptions, all registered on the PRS Exemptions Register used for the band E rule today; a registered exemption lets you keep letting until it expires. The landlord database arrives alongside it from 15 December 2026.
What each measure costs and scores
An EPC is a score out of 100: band C is 69 to 80, D is 55 to 68, E is 39 to 54 and F is 21 to 38. The table gives the installed cost and typical points for a home that does not already have the measure; confirm with an assessor before ordering anything over £1,000. Loft and cavity insulation are the cheapest points and they are fabric measures, which the standard requires first; solar and heat pumps only count once the fabric standard is met, so they come last unless the boiler is failing anyway (see the boiler cover guide and comparer). What each measure saves on the tenant's bills, and how long it takes to pay back, is on our sister site: run the property through Retrofit Planner's retrofit plan.
| Measure | Installed cost | Typical points |
|---|---|---|
| Loft insulation to 270 mm | £300 to £600 | +5 to +8 |
| Cavity wall insulation | £400 to £1,500 | +8 to +12 |
| LED lighting throughout | £100 to £300 | +1 to +3 |
| Heating controls (programmer, room stat, TRVs) | £150 to £400 | +2 to +3 |
| Double glazing | £3,000 to £7,000 | +5 to +8 |
| Condensing gas boiler | £1,500 to £3,500 | +5 to +8 |
| Solar PV, 3 to 4 kW | £5,000 to £8,000 | +6 to +8 |
| Air source heat pump, net of the £7,500 grant | £3,000 to £7,000 | +10 to +15 |
| Internal solid wall insulation | £4,500 to £8,000 | +15 to +20 |
September 2026 prices outside London, including VAT where it applies; insulation and low-carbon heating are zero-rated until March 2027. The heat pump figure is net of the Boiler Upgrade Scheme grant, deducted from the invoice by the MCS installer.
EPC C 2030 landlord cost by property type
Seven types, each with its usual starting score for its age and build. Use the planner with your own band; add 15 to 25 percent in London and the South East.
1-bed flat (purpose-built, 1990s or later)
The score is held back by lighting, controls and the age of the combi. A flat at 66 to 68 reaches C on LED and controls alone; one at 62 with an old boiler needs the boiler too. Roof and walls are usually the freeholder's, the classic third-party consent case.
| Measure | Cost | Points |
|---|---|---|
| LED lighting and heating controls | £250 to £700 | +3 to +6 |
| Condensing combi if pre-2005 | £1,500 to £3,500 | +5 to +8 |
| Total from D (62 to 66) | £250 to £4,200 | +3 to +14, C |
September 2026 quotes. A combi swap is a one-day job with the tenant in place.
2-bed terrace (1930s to 1970s, cavity walls)
The cheapest house to fix: an unfilled cavity is the biggest single gain on any EPC and a mid-terrace has only two outside walls. Many lofts were topped up to 100 mm in the 2000s and need bringing to 270 mm.
| Measure | Cost | Points |
|---|---|---|
| Loft insulation to 270 mm | £300 to £600 | +5 to +8 |
| Cavity wall insulation | £400 to £1,500 | +8 to +12 |
| LED lighting | £100 to £300 | +1 to +3 |
| Total from D (58 to 62) | £800 to £2,400 | +14 to +23, C |
September 2026 quotes. Each job takes a day with the tenant in place.
3-bed semi (1950s to 1970s, cavity walls)
Three outside walls and a bigger roof, so the same measures cost more and score about the same. From band E (50 to 54), usually an old boiler and a bare loft, add the boiler, taking the total to £2,450 to £6,300.
| Measure | Cost | Points |
|---|---|---|
| Loft insulation to 270 mm | £300 to £600 | +5 to +8 |
| Cavity wall insulation | £400 to £1,500 | +8 to +12 |
| LED lighting and heating controls | £250 to £700 | +3 to +6 |
| Total from D (55 to 60) | £950 to £2,800 | +16 to +26, C |
September 2026 quotes.
4-bed detached (1980s to 1990s)
Usually built with a filled cavity and double glazing, so the score is already in the low 60s and a loft top-up, LED and controls close the gap for under £1,300. If those are done, solar PV at £5,000 to £8,000 adds +6 to +8; run the rental yield calculator first.
| Measure | Cost | Points |
|---|---|---|
| Loft top-up to 270 mm | £300 to £600 | +5 to +8 |
| LED lighting and heating controls | £250 to £700 | +3 to +6 |
| Total from D (60 to 65) | £550 to £1,300 | +8 to +14, C |
September 2026 quotes.
Victorian solid-wall terrace (pre-1919)
The property the £10,000 cap was written for. Solid brick cannot be cavity filled. The cheap measures take a typical E to a mid or high D; only wall insulation gets it to C, and that needs empty rooms. Do step one, get a new EPC, then choose between the walls and spending to the cap; the response also lists a specific solid wall insulation exemption.
| Measure | Cost | Points |
|---|---|---|
| Loft insulation to 270 mm | £300 to £600 | +5 to +8 |
| LED lighting and heating controls | £250 to £700 | +3 to +6 |
| Condensing boiler | £1,500 to £3,500 | +5 to +8 |
| Step 1 total from E (45 to 52) | £2,050 to £4,800 | +13 to +22, D |
| Internal solid wall insulation | £4,500 to £8,000 | +15 to +20 |
| Step 2 total | £6,550 to £12,800 | C, or the cap |
September 2026 quotes. Above £10,000 the cost cap exemption applies for 10 years.
Bungalow (1960s, cavity walls)
The largest roof and floor for its floor area, so an uninsulated bungalow sits in band E even with cavity walls. The same shape makes the fixes cheap per point, and there is room for a heat pump: £3,000 to £7,000 net of the grant for +10 to +15 instead of the boiler. Retrofit Planner's heat pump cost guide for bungalows has the installed and running costs.
| Measure | Cost | Points |
|---|---|---|
| Loft insulation to 270 mm | £300 to £600 | +5 to +8 |
| Cavity wall insulation | £400 to £1,500 | +8 to +12 |
| LED lighting and heating controls | £250 to £700 | +3 to +6 |
| Condensing boiler | £1,500 to £3,500 | +5 to +8 |
| Total from E (48 to 54) | £2,450 to £6,300 | +21 to +34, C |
September 2026 quotes. An oil-heated bungalow is the strongest heat pump case here.
HMO (converted 1900s to 1930s house, five or six lets)
Priced like the house it was, plus extra bulbs, radiators and a bigger boiler: a 1930s conversion follows the 3-bed semi route, a solid-walled 1900s one the Victorian terrace. Whole-house lets need an EPC now and are in scope; room-by-room lets depend on the regulations still to be laid, so plan on the building reaching C. Licence conditions are in the HMO licence cost guide.
| Measure | Cost | Points |
|---|---|---|
| Loft insulation to 270 mm | £300 to £600 | +5 to +8 |
| LED throughout, controls and TRVs | £250 to £700 | +3 to +6 |
| Larger condensing boiler | £1,500 to £3,500 | +5 to +8 |
| Total from D or E (50 to 58) | £2,050 to £4,800 | +13 to +22, C from 56 up |
September 2026 quotes. Solid walls add £4,500 to £8,000 and often reach the cap.
When to do the work
Since 1 May 2026 every private tenancy in England is periodic and a landlord cannot end one to do improvements. Tenants leave on two months' notice, enough to book work for the void. Glazing and wall insulation need an empty property; the rest can be done with the tenant in place, and a tenant who refuses access is the basis of the third-party consent exemption. Three more points:
- VAT. Insulation and low-carbon heating are zero-rated until March 2027.
- The 2029 cut-off. A C on the current metric only counts on a certificate issued before 1 October 2029, so reassess as soon as the work is done and put the expiry in the compliance calendar.
- The final-year rush. Installers will not have capacity for every sub-C rental in 2030; pair the work with the certificates you book through the certificate cost calculator.
How the spend is taxed
HMRC separates repairs, deducted from rental income in the year, from improvements, which are capital and are not. Replacing something worn with its modern equivalent is a repair even if it performs better (HMRC's own examples include single glazing replaced with double), so a like-for-like boiler and replacement windows are usually revenue. Adding something the property never had is capital: insulation where there was none, solar panels, a heat pump replacing a gas boiler. Two consequences:
- No capital allowances. Plant or machinery for use in a dwelling-house is not qualifying expenditure for a property business.
- It counts on sale. Capital spend still reflected in the property when you sell is enhancement expenditure and reduces the capital gain, net of any grant. Keep the invoices with the deeds.
Landlords with qualifying income over £50,000 have been in Making Tax Digital since 6 April 2026; the threshold falls to £30,000 from 6 April 2027 and £20,000 from 6 April 2028. See the MTD guide, the MTD checker and the running-cost guide.
What happens if you do nothing
From 1 October 2030 a landlord letting a property below the standard with no exemption registered is in breach: a maximum penalty of £30,000 per breach per property, against £5,000 per property in total under today's band E rule, with penalties published on the register. The Renters' Rights Act landlord database will show compliance documents too, so a non-compliant property is flagged before it is marketed. Against that, the cheapest route here is £550 and a typical cavity-wall house needs under £3,000.
Frequently asked questions
How much does it cost a landlord to get to EPC C by 2030?
£550 to £2,800 for most cavity-wall houses and flats starting in band D, mostly loft and cavity insulation. A band E bungalow or semi with an old boiler is £2,450 to £6,300, and a solid-wall Victorian terrace £6,550 to £12,800.
What are the landlord EPC requirements for 2030?
Every private tenancy in England and Wales must meet the new standard by 1 October 2030: a fabric performance standard first, then a heating system or smart readiness standard of the landlord's choice, with spend capped at £10,000 per property and a 10-year exemption after that.
Does every rental need EPC C by 2030, or only new tenancies?
Every tenancy in scope, existing and new, from 1 October 2030. A property already rated C on an EPC issued before 1 October 2029 counts as compliant until that certificate expires.
What counts towards the £10,000 cap?
Relevant measures installed since 1 October 2025, reasonable EPC assessment costs, and grant funding except Boiler Upgrade Scheme money. Keep the invoices; the cost cap exemption has to be evidenced on the register.
Can I set the cost of EPC work against tax?
Like-for-like replacements such as a boiler or windows are usually repairs, deductible in the year. New insulation, solar or a heat pump is capital: no deduction and no capital allowances in a dwelling, but it reduces the capital gain on sale. MTD has applied over £50,000 since 6 April 2026.
What is the penalty for not meeting EPC C in 2030?
Up to £30,000 per breach per property under the new rules, against £5,000 per property in total for today's band E minimum. Penalties are published on the PRS Exemptions Register.
Sources
Government response, 21 January 2026; GOV.UK band E landlord guidance and the 2015 Regulations; Boiler Upgrade Scheme grants and eligibility; GOV.UK on EPC validity; HMRC PIM2030, CA23060 and CG15180; installer price lists and quotes, September 2026. See the methodology.