Part of: UK Council Tax 2026 — Complete Guide → Council Tax Appeal 2026
TL;DR: Comparable properties are the foundation of most Council Tax band challenges. Strong comparables share the same property type, similar floor area, similar number of bedrooms, and the same general locality. Find them using the Valuation Office's public band list at gov.uk/council-tax-bands. Aim for three to five well-matched comparables. Quality matters more than quantity.
Last reviewed: 27 April 2026
What Makes a Valid Comparable
The Council Tax banding system in England assigns bands based on each property's hypothetical April 1991 open market capital value. A comparable property is one that was assigned a specific band in 1991 and can be used to argue that your property's 1991 hypothetical value should have been similar or lower.
The Council Tax (Alteration of Lists and Appeals) (England) Regulations 2009 and the Council Tax (Situation and Valuation of Dwellings) Regulations 1992 together govern the evidential framework. Comparable selection follows valuation principles: a comparable must be genuinely similar to the "subject property" (your property) in the factors that would have affected value in April 1991.
The four primary criteria are:
Same property type: Terraced house, semi-detached house, detached house, end-of-terrace, flat, maisonette, bungalow. Mixing types - using a semi-detached as a comparable for your terraced house, for example - is a weakness unless specifically justified.
Similar floor area: Within approximately 10 to 15% of your property's gross internal area. A property significantly larger or smaller would have had a different 1991 hypothetical value regardless of other similarities.
Similar number of bedrooms: As a proxy for size and layout. Significant differences in bedroom count (comparing a 4-bedroom property with your 2-bedroom property) require explanation.
Same general locality: Ideally the same street. Immediately adjacent streets in the same sub-market are a reasonable extension. Moving to different neighbourhoods, even nearby ones, risks introducing properties that had genuinely different 1991 values.
Step-by-Step: Finding Comparables
Step 1 - Use the public band list: Go to gov.uk/council-tax-bands and enter your postcode. The tool shows every residential property in your area with its Council Tax band. Start with your own street. Look at properties of the same type as yours and note their bands.
Step 2 - Identify properties in lower bands: Note which properties on your street (and adjacent streets) are of the same type but in a lower band than yours. These are your candidate comparables.
Step 3 - Verify physical similarity: Using estate agent listings (Rightmove, Zoopla), EPC data (at find-energy-certificate.service.gov.uk), and aerial imagery (Google Maps), verify that each candidate comparable is genuinely similar in size and layout. EPC records show gross internal area - use this to confirm floor area is within the 10 to 15% range.
Step 4 - Check Land Registry: At gov.uk/search-house-prices, check historical sale prices for candidate comparables. Properties sold in the mid-1990s provide context for relative 1991 values (the market in that period had not diverged dramatically from 1991 conditions).
Step 5 - Select your final comparables: Choose three to five properties that are the most directly similar to yours. Document each one: address, current band, property type, approximate size or bedroom count, and the specific similarity to your property.
The Valuation Office's Own Methodology
The Valuation Office (formerly VOA, now part of HMRC since 1 April 2026) uses a comparable selection methodology that parallels what householders should use. Published Valuation Office guidance indicates that assessors build comparator pools of typically 4 to 8 properties when reviewing or setting bands. Post-merger, HMRC's Valuation Office team uses the same methodology.
When you submit a proposal, your comparable evidence is reviewed against the Valuation Office's own records and comparable pool for the area. Proposals that align with the Valuation Office's assessment of the local "tone of the list" are more likely to succeed.
Common Comparable Selection Errors
Using properties in different localities: Nearby does not always mean comparable. A property 500 metres away but in a materially different sub-market (for example, closer to a park, on a quieter cul-de-sac, or in a more sought-after street) may have had a genuinely higher 1991 value. Location within the local market matters.
Using properties significantly modified since 1991: A comparable that has had a large extension since 1991 is now larger than it was in 1991. Its current appearance doesn't reflect its 1991 state. If you're aware of significant post-1991 changes to a candidate comparable, use it cautiously and acknowledge the difference.
Using commercial properties: Business premises are rated for business rates, not Council Tax. They cannot be Council Tax comparables.
Using properties of a clearly different type: Comparing a flat to a terraced house on the same street is likely to introduce a type-based value difference that undermines the comparison.
How Many Comparables to Include
Three to five strong comparables is the practical target. The Valuation Office needs enough comparable properties to identify a consistent local pattern, but they prioritise quality over quantity.
A proposal with three excellent comparables - same street, same type, similar size, all in a lower band - is significantly stronger than a proposal with ten borderline or weak comparables. Padding with weak evidence can dilute the quality of the strong evidence.
Using EPC Records to Verify Floor Area
Energy Performance Certificates (EPCs) are publicly searchable at find-energy-certificate.service.gov.uk. For any address in England and Wales that has been marketed or let since 2008, an EPC will typically be available.
EPCs record the property's gross internal area (GIA) in square metres. This is the most reliable publicly available floor area measurement for residential properties. When researching comparables, use EPC records to:
- Verify that a candidate comparable is within approximately 10 to 15% of your property's floor area
- Confirm the property type matches what the band list shows
- Identify any significant features recorded (number of habitable rooms, extension type)
If your property also has an EPC, document your floor area from it. This gives the Valuation Office a consistent measurement basis for comparing your property with your proposed comparables.
Presenting Your Comparable List Clearly
When submitting a formal proposal to the Valuation Office (formerly VOA, now part of HMRC since 1 April 2026) under the Council Tax (Alteration of Lists and Appeals) (England) Regulations 2009, present your comparables clearly:
For each comparable, provide: the full address, its current Council Tax band (from gov.uk/council-tax-bands), its property type, its approximate floor area or bedroom count (from EPC or listing records), and one or two sentences explaining why it is a valid comparison with your property.
A concise, well-structured comparable list is more useful to the reviewing officer than a lengthy narrative.
Frequently Asked Questions
How do I check how big my neighbour's house is to confirm it's a valid comparable?
EPC certificates are publicly searchable at find-energy-certificate.service.gov.uk. Enter the property's address or postcode to find any EPC certificates lodged for that address. EPCs record the gross internal area in square metres. Compare this with your own property's area (from your EPC, from estate agent particulars, or measured directly).
My street is a mix of terraced houses and some have been extended since 1991 - does this make them invalid comparables?
An extended comparable is still usable if it was also extended in or around 1991 (so its 1991 value already reflected the extension) or if the extension is minor relative to the overall property size. If a comparable had a large extension added after 1991, its current floor area is larger than its 1991 floor area - which means its current Council Tax band may partly reflect the post-1991 increase in value rather than the 1991 baseline. Acknowledge this limitation and use such comparables with care.
The Valuation Office rejected my proposal because my comparables are 2 streets away - how should I respond to this?
Ask the Valuation Office to provide the specific reason why those streets are not considered comparable. If the streets are genuinely similar in character and construction era, you can argue in your tribunal appeal that the locality difference does not support a material value difference. Include evidence of the streets' similarity (estate agent descriptions, aerial imagery, planning records showing similar development periods).
I found a property in a lower band but it's a flat and mine is a terraced house - can I use it in my proposal?
A flat and a terraced house are different property types and would typically have had different 1991 hypothetical values. You can include such a property as supporting context, but it is unlikely to be accepted as a primary comparable by the Valuation Office. Focus on terraced houses as your primary comparables.
What if there are no comparable properties in my street in a lower band - they're all in the same band?
If all similar properties on your street share the same band, the local tone of the list for that property type supports that band. You would need to look at comparable streets nearby with similar housing stock but lower bands, or identify a factual error in the Valuation Office's records (wrong floor area, wrong property type recorded) as an alternative ground for challenge.
How we verified this
The comparable evidence framework is from the Council Tax (Situation and Valuation of Dwellings) Regulations 1992 and the Council Tax (Alteration of Lists and Appeals) (England) Regulations 2009. The Valuation Office's comparable assessment approach is from published Valuation Office guidance. Land Registry data is from HM Land Registry. EPC data is from the government's Energy Performance of Buildings Register. MHCLG guidance covers comparable selection for band proposals.
Sources & Verification
- Council Tax (Alteration of Lists and Appeals) (England) Regulations 2009: https://www.legislation.gov.uk/uksi/2009/2270/contents
- Council Tax (Situation and Valuation of Dwellings) Regulations 1992: https://www.legislation.gov.uk/uksi/1992/550/contents
- Local Government Finance Act 1992: https://www.legislation.gov.uk/ukpga/1992/14/contents
- gov.uk Council Tax band lookup: https://www.gov.uk/council-tax-bands
- HM Land Registry sold prices: https://www.gov.uk/search-house-prices
- EPC Register: https://find-energy-certificate.service.gov.uk/
- IRRV (Institute of Revenues, Rating and Valuation): https://www.irrv.net/
This article is for informational purposes only and does not constitute legal, financial, or tax advice. Council Tax rules vary by local authority and change annually. Always verify current rates and rules with your local council and gov.uk before making any decision.
