Decent Homes Standard complete compliance guide

Bringing a substandard rental property up to standard costs over £8,000 on average. Fail to comply? Fines are set to hit new highs of £40,000.

With enforcement of the newly updated Decent Homes Standard starting in 2035, housing providers have less than a decade to audit thousands of properties, plan upgrades, and complete the work.

With over 15 years’ experience in smart energy and environmental data, we’ve seen the same issues crop up time and again – from thermal efficiency failures and wasted heating, to hidden damp risks and inaccurate reporting.

The question isn’t whether your properties will be inspected. It’s whether you’ll be ready when they are.

Your five point compliance framework

The reformed Decent Homes Standard requires every rental property to meet five distinct criteria. Each criterion has specific requirements, and failing any single one means the entire property fails.

Here’s your complete compliance checklist.

Criterion A: Category 1 hazards

Your property must be completely free from serious safety risks under the Housing Health and Safety Rating System.

Common Category 1 hazards include:

• Severe damp and mould
• Dangerous electrical installations
• Structural collapse risks
• Fire hazards
• Excess cold or heat
• Falls on stairs or from heights
• Carbon monoxide exposure

Your action checklist:

• Commission a professional HHSRS assessment for each property
• Document all hazards found, and any remediation work completed
• Check electrical installations are tested within last 5 years
• Verify gas safety certificates are up-to-date
• Inspect structural integrity of staircases, balconies, and windows
• Install carbon monoxide alarms in rooms with fuel-burning appliances
• Test smoke alarms on every floor

Criterion B: reasonable state of repair

The new standard introduces a condition-based test that replaces age-related rules, with an expanded list of key components including kitchens and bathrooms that must be kept in good repair.

This is the game changer. A perfectly functional 20-year-old kitchen now passes where it would have previously failed.

Key building components include:

• External walls, roof structure, chimneys
• Windows and doors
• Heating systems and boilers
• Kitchens and bathrooms
• Electrics and plumbing

Your action checklist:

• Inspect components for functionality and safety, not age. The government will publish detailed assessment criteria, but look for:
  • Kitchens: Working appliances, adequate workspace, safe electrics, intact surfaces
  • Bathrooms: Functioning fixtures, no leaks, adequate ventilation, safe flooring
  • Windows/doors: Secure, weatherproof, locks functional
  • Heating: Heats entire property, programmable controls work, no safety issues
  • Structure: No water ingress, structural integrity sound, chimneys safe
• Document everything with dated photos and condition notes
• Prioritise safety issues first – anything that could become a Category 1 hazard
• Plan repairs based on actual condition surveys, not age-based schedules
• Watch for government guidance on specific condition standards when published

The key question: Does this component work properly and safely? If yes, it passes regardless of age. If no, it needs repair or replacement.

Criterion C: modern facilities and services

Properties need to provide a minimum number of core facilities to pass. The requirements differ between houses and flats.

Required facilities for flats

Properties must provide at least three out of four:

• Kitchen with adequate space and layout – Sufficient workspace for food preparation, room for appliances, safe and functional layout (detailed standards to be published in government guidance)
• Appropriately located bathroom and WC – Not opening directly into living/kitchen areas, accessible to residents, meets building regulations
• Adequate external noise insulation – Particularly relevant for properties near busy roads, airports, or commercial premises (specific decibel standards pending)
• Adequate size and layout of common entrance areas – Safe, well-lit, sufficient width for access including mobility aids (detailed measurements to be confirmed)

Note: The government will publish detailed criteria for what constitutes “adequate” in each category. In the meantime, assess against current building regulations and common-sense functionality.

Required facilities for houses

• Properties must provide at least two out of three:
• Kitchen with adequate space and layout
• Appropriately located bathroom and WC
• Adequate external noise insulation
  All properties must have child-resistant window restrictors on windows presenting a fall risk for children (must be over-rideable by adults).

Your action checklist:

• Ensure kitchens have adequate space for food preparation
• Verify bathrooms are appropriately located (not opening directly into living spaces)
• Check common areas are well-maintained and adequately lit
• Assess noise insulation in properties near busy roads or commercial premises
• Document which three (minimum) facilities each property provides
• Install compliant window restrictors on all at-risk windows

Criterion D: thermal comfort and energy efficiency

Properties must meet Minimum Energy Efficiency Standards (MEES) with programmable heating throughout.

The new standard focuses on condition and functionality, not just age. A newly installed heating system that’s poorly maintained could fail to meet the standard, while a well-maintained older system might pass.

Your action checklist:

• Verify properties meet current MEES requirements
• Ensure heating systems can heat the entire home
• Check heating controls are programmable by residents
• Confirm thermostats are accessible and functional
• Plan for EPC C requirement by 2030
• Address any cold spots or inadequate insulation
• Document heating system maintenance schedules

This is where real-time monitoring becomes invaluable. Chameleon’s Gateway devices monitor ambient temperature and humidity, helping housing providers identify existing thermal efficiency issues before they become compliance problems.

Criterion E: free from damp and mould

The brand new criterion that’s causing the most concern for housing providers.

Any damp and mould hazard assessed within bands A to H of the HHSRS fails this criterion. That’s a much stricter threshold than Category 1 hazards alone.

Your action checklist:

• Inspect every property for visible mould, water stains, and musty smells
• Check ventilation in bathrooms, kitchens, and bedrooms
• Verify extractor fans are working and properly vented
• Look for condensation on windows and cold surfaces
• Fix any leaks in roofs, pipes, or around windows immediately
• Monitor humidity levels, especially in problem properties
• Document all damp and mould reports and remediation work

This is where the Gateway Connect becomes invaluable. Its temperature and humidity sensors calculate a home’s dew point, indicating the likelihood of damp and mould developing – and can alert you before visible problems appear. Catching condensation risks early prevents expensive remediation and potential enforcement action.

Your property audit timeline

Don’t try to audit everything at once. Break your portfolio into manageable chunks and work systematically.

2026: assessment phase

• Audit your entire stock systematically (aim for 50% per year)
• Identify the worst-performing properties
• Get professional HHSRS assessments
• Create a prioritised action plan
• Create documentation system

2027-2029: priority works

• Address all Category 1 hazards
• Fix critical damp and mould issues
• Upgrade failing heating systems
• Complete urgent structural repairs
• Meet key EPC C requirements before 2030

2030-2032: energy efficiency

• Install modern heating controls
• Improve insulation where needed
• Address remaining thermal comfort issues

2033-2034: final compliance

• Complete remaining facility upgrades
• Conduct final compliance checks
• Update all documentation
• Prepare for enforcement

Essential record keeping

When councils inspect your properties, you’ll need to prove compliance. Create a simple checklist for your property, take clear photos, and document any work carried out to meet the standard.

Here’s what to document:

For every property, maintain:

• Current HHSRS assessment reports
• Gas safety certificates (annual)
• Electrical installation condition reports (every 5 years)
• EPC certificates (current within 10 years)
• Photos of all major components and facilities
• Maintenance and repair records with dates
• Tenant correspondence about repairs
• Professional survey reports
• Upgrade work completion certificates

Create a compliance folder for each property with:

• Pre-work condition photos
• Post-work completion photos
• Contractor invoices and certificates
• Material specifications
• Warranty documentation

Digital record-keeping makes audits easier. Consider a centralised property management system that stores all compliance documentation in one searchable location.

Common compliance pitfalls

Don’t fall into these traps:

Assuming insulation exists

Just because a wall looks solid doesn’t mean it’s insulated. Get thermal imaging surveys for older properties.

Ignoring tenant reports

Housing providers will be held accountable for defects and must respond quickly when safety issues are reported or discovered.

Replacing based on age

The new standard rewards maintenance over replacement. A well-maintained older component beats a neglected new one.

Treating properties identically

Every property is different. Cookie-cutter approaches miss property-specific issues.

Waiting until 2034

The properties needing the most work will take years to complete. Start with the worst performers now.

Planning your budget

With an average cost of over £8,000 per non-decent property, you need a realistic budget.

Typical upgrade costs:

• New boiler and heating system: £2,500 to £4,000
• Kitchen replacement: £3,000 to £8,000
• Bathroom replacement: £2,500 to £5,000
• Damp proofing and mould remediation: £500 to £3,000
• Electrical rewiring: £3,000 to £6,000
• Window replacement: £3,000 to £8,000
• Insulation improvements: £1,000 to £5,000

The better you maintain properties now, the less you’ll spend later.

Properties with documented maintenance histories and regular inspections tend to require significantly less remediation than neglected ones.

What happens if you don’t comply?

Councils have serious enforcement powers.

For serious failures like Category 1 hazards, councils can issue immediate civil penalties of up to £7,000.

For other offences, maximum penalties can reach £40,000. Non-compliance with enforcement notices can result in criminal prosecution.

Beyond fines, you face:

• Reputational damage
• Difficulty attracting quality tenants
• Lower property values
• Rent repayment orders to tenants
• Potential banning orders for serious breaches

The properties that exceed the standard will command premium rents and longer tenancies.

Making compliance manageable

There are plenty of tools available to turn this mountain of work into actionable steps.

Smart housing providers are using real-time, accurate data to prioritise work efficiently. Knowing which properties struggle with thermal comfort, where humidity spikes indicate damp risk, and which homes need attention first, makes the entire compliance process more strategic. Instead of waiting for tenant complaints, you can identify and fix issues before they become compliance failures.

Want to see how data-driven compliance could work for your portfolio? Get in touch with our team to discuss how real-time energy and environmental monitoring can help you meet the Decent Homes Standard efficiently.

Your next steps

Choose one property. Walk through each criterion’s action checklist this week.

Once you understand what one property needs, you can estimate the scale of work across your entire portfolio. The housing providers starting now will spread costs over nine years instead of scrambling in the final year.

The reformed Decent Homes Standard, enforced from 2035, sets a higher bar for rental property quality in England. But it’s also an opportunity to improve your stock, attract better tenants, and future-proof your investment.