Can Your Rates Go Up After a Review in Northern Ireland?

Yes, They Can

When you request a valuation review in Northern Ireland, the outcome isn't limited to "reduced" or "no change." LPS has the statutory power to increase your capital value if their review uncovers reasons to do so. This catches many ratepayers off guard.

The review is an open reassessment. Once you submit Form CR3, LPS re-examines your property from scratch. If a valuation officer identifies an unrecorded physical change that affects the valuation, LPS must reflect it in the Valuation List — even if it means your bill goes up.

What Triggers an Increase

The most common reason for an upward revision is unrecorded physical improvements:

• Extensions — a ground-floor or rear extension built after the original assessment that was never reported to LPS
• Loft conversions — additional bedroom or living space created from roof space
• Sunrooms or conservatories — permanent structures that increase the gross external area
• Outbuildings — garages, home offices, or workshops not in the original records
• Measurement errors in your favour — the recorded gross external area is smaller than reality

Any of these increases the property's size or structural capacity, which translates directly into a higher capital value under the 1 January 2005 baseline.

The Knock-On Effects

An upward revision doesn't just affect your property. Under the Rates (Northern Ireland) Order 1977, LPS has a duty to maintain an accurate and equitable Valuation List. If you cite a neighbouring property as a comparator and LPS finds that their assessment is also wrong — say, due to an unrecorded extension — LPS can revise the neighbour's capital value upward too.

This means your challenge could trigger inspections and increases for surrounding properties. The legislation doesn't require your consent or the neighbour's for this.

Can You Withdraw?

You can withdraw a review or appeal in writing at any stage before a final determination. Before the Valuation Tribunal, you need to deliver a signed withdrawal notice to the Secretary.

But withdrawing doesn't eliminate the risk entirely. If LPS valuers have already inspected the property and documented unrecorded alterations, LPS retains independent statutory powers under Article 49 of the 1977 Order to amend the Valuation List to correct the record — regardless of whether your review is still active.

How to Check Before You File

Before submitting Form CR3, walk through these questions:

1. Has any work been done since the property was originally assessed? Extensions, conversions, new outbuildings, or structural changes that weren't notified to LPS.
2. Could the gross external area be larger than what's recorded? If you know or suspect the property's footprint exceeds the Valuation List entry, an inspection will catch it.
3. Have you added features that increase value? A permanent garage, converted attic, or added sunroom all increase the gross external area.

If you answer yes to any of these, a review might result in a higher valuation rather than a lower one. That doesn't necessarily mean you shouldn't file — but you need to weigh the realistic risk before committing.

Extensions and Loft Conversions Specifically

Northern Ireland doesn't use England's improvement-marker system, where home improvements are revalued only when the property is sold. In Northern Ireland, any physical alteration affecting the property's size or structural capacity must be reflected in the Valuation List when identified — regardless of ownership changes.

If you've extended the property and it hasn't been revalued since, that discrepancy may be identified during a review. The question is whether it comes with a net increase that outweighs any correction you were hoping for.

Our valuation challenge guide includes an upward-risk diagnostic worksheet designed to help you identify these triggers before you file anything, so there are no surprises.

See more Northern Ireland guides →