Stamp duty land tax (SDLT) has long been a headache for property conveyancers and solicitors, thanks to increasingly complex rules and reliefs.

The topic has been back in the headlines only recently after former deputy prime minister Angela Rayner resigned, admitting she’d underpaid SDLT on her property purchase in Hove.

And while Chancellor Rachel Reeves’ autumn budget announced no imminent SDLT changes, this topic remains a talking point in the property industry – not least due to the serious financial and reputational consequences of getting it wrong.

Small errors, big repercussions

Research from InfoLegal suggests that four in ten SDLT returns contain mistakes, often due to misclassifying properties and misinterpreting reliefs. Conveyancing teams are frequently directed to generic guidance, leaving them to navigate complex rules without specialist advice.

Errors can result in compliance breaches, HMRC penalties, client disputes, negligence claims, and reputational damage.

The penalties alone can range from 30% to 100% of the SDLT lost plus interest, depending on whether HMRC classifies the error as careless or deliberate. So, even unintentional mistakes can have significant repercussions.

And it’s easy to see how SDLT errors can occur:

  • Complex rules – SDLT is a minefield with five main tax bands and numerous reliefs and exemptions.
  • A shifting landscape – changing thresholds and temporary reliefs mean it’s hard to keep up with the latest rules.
  • A reliance on manual processes – many firms still rely on manual calculations, creating inefficiencies and risks of human error.
  • Tools that aren’t up to the job – online calculators (including HMRC’s SDLT calculator) lack the functionality to handle some non-standard scenarios (such as corporate transactions and trusts).
  • Pressing deadlines – conveyancers are under constant pressure to move fast and provide instant answers in this bewildering landscape.

A recent study from SCA Tax found that 11% of 7,000 submissions contained overpayment errors – highlighting the scale of the problem.

Meanwhile, SDLT scams are on the rise. Unscrupulous SDLT reclaim agents are exploiting weaknesses in the system, encouraging spurious and unfounded claims based on misinterpretation of the law (HMRC).

These issues are all creating a perfect storm within the property industry – underscoring the need for a comprehensive, tailored solution to protect conveyancers and their clients against liability.

4Stamp: a certified solution to ease the pain of SDLT

At OneSearch, we’ve partnered with 4Stamp to bring you a certified SDLT verification tool that provides accurate tax calculations instantly.

4Stamp is a cloud-based solution tailored for the ever-changing UK conveyancing landscape, enabling firms to meet their regulatory obligations under the Conveyancing Quality Scheme.

4Stamp is far more than an online calculator. It gives you peace of mind that your tax calculations are accurate, so you can get on with your job of delivering a first-class conveyancing service.

Safeguard your business against non-compliance

Using 4Stamp, you can:

  • Protect against risk – get a certified tax assessment and a complete audit trail. Specialist tax advice is available for more complex cases.
  • Get peace of mind with indemnity protection – all calculations are covered by professional indemnity insurance, transferring liability away from your firm.
  • Save time and streamline your processes with instant calculations – reducing inefficiencies and admin work.

Conveyancing experts and solicitors can manage and track their SDLT and LTT (Land and Buildings Transaction Tax) calculations directly through our OneSearch platform – alongside Local Authority searches, environmental reports, and other conveyancing tasks. 4Stamp brings together all aspects of conveyancing in one place.

The 4Stamp team can even manage any queries or investigations related to your SDLT transactions on your behalf.

“We understand the challenges that SDLT presents for conveyancers and solicitors,” explains Liz Jarvis, Managing Director, OneSearch. “The rules and regulations around SDLT are so complex and convoluted that even experienced conveyancers can fall foul of the system.”

“For conveyancers and solicitors, 4Stamp eliminates the financial and reputational risks associated with non-compliance while also streamlining the whole conveyancing process,” explains Liz.

“For buyers, 4Stamp ensures that they are paying the right amount – and not unwittingly putting themselves at risk of HMRC penalties or even overpayment.”

Bringing clarity and compliance to conveyancing

Speculation persists that the government is still considering yet more changes to property taxes, including SDLT. In a complex and uncertain market, 4Stamp brings clarity and compliance to ease the pain of SDLT.

Ready to take the first step? See how 4Stamp can help you improve compliance, reduce risk, and protect you and your clients from liability – watch our latest video for an in-depth look at SDLT compliance and how to include it in your next search order.

When you’re moving through a property transaction, Local Land Charges (LLCs) sit quietly in the background… but they’re doing a lot of heavy lifting.

They protect buyers, inform lenders, and ensure no one inherits an unexpected restriction or liability. And now, with HM Land Registry’s digital migration well underway, the way we access and understand these charges is changing for the better.

Here’s a clear, friendly, five‑minute guide to help newer faces to conveyancing explain the essentials.

What are Local Land Charges?

Local Land Charges are restrictions, obligations or prohibitions that are tied to land or property and automatically pass to each new owner. They’re created by public bodies using statutory powers and must be registered so that buyers are informed before committing to a purchase.

Classic examples include:

If it limits how the land can be used – or ensures someone pays what they owe – it’s probably a land charge.

LLC1 vs CON29: clearing up any confusion

Buyers often mix these up, so here’s the easy explanation:

  • LLC1 reveals everything held on the Local Land Charges Register – the legally binding charges.
  • CON29 covers local authority enquiries about things not held on that register, such as road schemes, planning history, or building control.

Together, they form the ‘full search’, but they serve very different purposes.

What’s in the Local Land Charges Register?

LLCs are grouped into Parts 1–12, covering everything from financial charges (like CIL) to planning designations, environmental protections, historic buildings, aviation restrictions, compensation schemes and more.

Some charges are mapped in spatial datasets. Others exist only as text entries. Many are highly technical, but the purpose is always the same: to alert the buyer to something important before they exchange.

The HMLR Digital Migration; what’s changing?

Since 2018, Local Land Charges registers have been gradually transferring from individual councils to HM Land Registry’s national digital service. Not every authority has migrated yet, but the end goal is a centralised, standardised, instantly searchable dataset.

The benefits are big:

  • One national search portal, instead of 300+ different council processes
  • Better mapping, using INSPIRE spatial datasets
  • Consistent turnaround times
  • Cleaner, clearer data, reducing the risk of omissions
  • Easier access for conveyancers, especially in edge cases or multi‑parcel searches

For buyers and conveyancers, this means a more predictable, transparent experience – and fewer discrepancies between planning systems, mapping, and the LLC register.

Why this matters in practice

LLCs can flag anything from a straightforward TPO to a condition that must be discharged, a financial liability still owed, or a highway obligation that limits future alterations. Even one missed entry could have costly consequences.

The digital migration helps reduce these risks by improving visibility, consistency, and auditability.

Local Land Charges may not grab headlines, but they’re one of the most important safeguards in the homebuying journey. Understanding how the register works – and how the HMLR digital upgrade is modernising it – helps conveyancers guide clients with confidence, clarity and the right expectations.

Local Development Plans quietly shape the places we live, work, and build, long before foundations are poured or planning applications reach committee.

They’re the blueprint for growth, setting out where new homes, schools, employment land, transport improvements and green spaces will go over the next decade or more… and now, with a major upgrade to the plan‑making system arriving in early 2026, it’s the perfect moment to unpack what’s changing, why it matters, and how it impacts conveyancing and property transactions.

What is a Local Development Plan?

A Local Development Plan is a legally required document produced by every local authority. It:

  • sets the vision and priorities for an area
  • identifies where development will (and won’t) go
  • outlines policies on housing, employment, transport, climate, heritage, and the environment
  • provides proposals maps showing spatial designations
  • guides planning decisions for years to come

Local authorities publish these plans online, usually in the planning policy area of their website. Alongside the main plan, there may be supplementary documents, area‑wide strategies, or draft proposals still in preparation.

What’s changing for 2026?

The UK Government is introducing a new Local Plan‑making system, designed to be faster, clearer, and more consistent. The current system is widely seen as slow, expensive, and highly variable between authorities.

From early 2026, the key changes include:

1. A new 30‑month timeline for producing plans

One of the biggest shifts. Local authorities will be required to prepare and adopt Local Plans within 30 months – a dramatic tightening compared to today’s often multi‑year processes.

2. A streamlined evidence and examination process

Authorities will no longer need to produce huge volumes of supporting documents. The system aims to reduce the administrative burden and speed up examinations.

3. A more standardised, map‑based format

Plans will become more visual, digital, and easier to interpret. Spatial clarity will improve – good news for conveyancers trying to navigate layers of designations.

4. Updated National Planning Policy Framework (NPPF)

A revised NPPF is expected for consultation in late 2025 and adoption in mid‑2026. It will align with the new plan‑making system and support faster homebuilding, infrastructure delivery, and clearer design expectations.

5. Stronger accountability for authorities

Central government has made it clear that up‑to‑date plans are non‑negotiable. There will be tighter expectations (and fewer excuses) for delays.

Why does the 2026 upgrade matter to our industry?

Local Plans aren’t just abstract policy documents – they directly shape:

  • Future development around a property
    New housing allocations, transport schemes, schools, relief roads or regeneration zones can significantly influence value and expectations.
  • Planning risk
    A site near a proposed growth corridor or employment zone may see increased activity. Conversely, land within a protected designation may face tighter restrictions.
  • Timing and certainty
    A clear 30‑month plan cycle means fewer periods of planning limbo, reducing ambiguity for buyers.
  • Emerging proposals
    Draft plans or recently published plans may be referenced in search results even before formal adoption. It’s helpful to explain that “emerging weight” can influence decisions.

How does this appear in property searches?

Search reports often include:

  • recent and emerging development plans
  • spatial policies affecting the property
  • unmapped designations referenced in planning policy
  • strategic documents that may influence the area
  • local authority plan‑making updates or consultations

Not every document listed affects the specific property directly; sometimes it simply indicates that the site falls within the wider plan boundary.

Local Development Plans are the backbone of the planning system, and the 2026 upgrade aims to make them faster, clearer, and more reliable. For conveyancers, they’re an essential part of contextual property advice: helping buyers understand what their surroundings may look like in five, ten, or fifteen years’ time.

As the new plan‑making system comes into force, staying aware of local authorities’ progress will be key to giving clients accurate, up‑to‑date guidance.

Clear drainage and water insights are foundational to confident conveyancing. Every minute spent interpreting a dense report is time lost elsewhere in a transaction.

To support faster, transparent advice, we have enhanced our OneSearch DW report for 2026. This report, a core element of conveyancing due diligence from OneSearch for the past 16 years, has undergone a thoughtful redesign to deliver a cleaner, more intuitive structure, making essential drainage and water insights effortless to absorb.

Catherine Noble Hyland, Senior Product Manager at OneSearch said: “The OneSearch DW refresh aims to help conveyancers work more efficiently with less distraction. Our improved summary page was designed to reduce mental load,  so our clients can move from data to client advice without missing a beat. We’ve very proud of the end result and client feedback has been overwhelmingly positive.”

Achieving Clarity: What’s New in the Design

We recognise the pressure to interpret complex data quickly while maintaining faultless accuracy. Reports that are visually dense or difficult to scan can slow transactions to a crawl, and even introduce unnecessary risk. That problem is precisely why we initiated this refresh; to remove visual friction and ensure every critical insight is immediately accessible.

You’ll notice key enhancements immediately:

  • A new summary page, for ease of interpretation. This brings the most critical connection status information right to the forefront.
  • Clear, uniform design. Enjoy consistency and familiarity across your OneSearch reports.
  • Clickable hyperlinks between sections for faster navigation.
  • A modern, streamlined layout that reduces visual noise and clutter. We’ve taken this opportunity to smarten how information is presented, allowing the most important details to stand out naturally.

Why This Refresh Matters to Your Workflow

The new layout provides direct benefits to you and your team:

  • Faster Answers: The new summary page with clickable access to the specific page details allows you to scan for the connection status of the Mains Water, Foul Sewer, and Surface Water Sewer faster than ever.
  • Easier Client Communication: The refreshed clarity helps you confidently advise your client on liability for maintenance, public sewer connection, and proximity to the public sewer.
  • Reduced Cognitive Load: The improved structure reduces the time spent searching for details, allowing you to focus on high-value advice.

Your Confidence Remains Our Priority

While the report design has evolved, our commitment to risk mitigation is unchanged.

The OneSearch DW report remains backed by £10 Million Professional Indemnity Insurance, ensuring you are protected against search-related PI claims.

Our search continues to benefit from an insurance policy This foundational assurance, combined with the new aesthetic clarity, ensures the OneSearch DW remains the most dependable choice for your due diligence.

Same Trusted Data: Now Even Easier to Use

The data inside is still the industry standard you rely on, the OneSearch DW report has been a foundational element of conveyancing due diligence for 15 years.

This refresh introduces a new visual experience while maintaining that proven depth and reliability. The essential Drainage and Water Enquiries sections remain consistent. Think of it as the same essential due diligence, delivered with a refined and more user-friendly touch.

This is Just the Beginning

We view this refresh as part of our ongoing commitment to delivering clarity and excellence. We trust that the updated report meets your requirements and welcome any feedback you may have.

Experience the DW report on your next search, or in your bundle packs. View our product page, or contact our Service Introduction Team today for all the details.

Biodiversity Net Gain is one of those phrases that feels simultaneously important and slightly mysterious. Luckily, it’s much simpler (and much more logical) than it sounds.

Here’s a friendly, five‑minute guide to help conveyancers explain BNG clearly and confidently, minus the jargon and the drama.

What is Biodiversity Net Gain?

BNG is now a legal requirement for most land developments in England. In short: Every development must leave nature in a measurably better state than it was before.

That means developers need to increase the biodiversity value of a site by at least 10%, using a recognised metric to show that habitats have been created, enhanced, or restored.

This shift reflects a very practical reality: biodiversity has been declining fast. BNG aims to reverse that trend by embedding environmental improvement into the planning system rather than treating it as an optional extra.

How is BNG measured?

This is where the metric comes in – most notably Defra’s Biodiversity Metric 4.0, the industry’s standard tool for assessing habitat value.

Ecologists (or other suitably qualified professionals) assess:

  • the type of habitats on the site
  • their condition
  • their distinctiveness
  • their size
  • any linear features such as hedgerows or rivers

Each habitat gets a biodiversity “score,” forming the baseline. Developers then show how they’ll deliver at least a 10% improvement on that score.

In practice, this often requires a site visit, and yes, habitat surveys mostly happen in spring and summer, which adds a fun seasonal constraint to planning teams.

How can developers achieve Biodiversity Net Gain?

There are three main routes:

1. On-site improvements

Enhancing or creating habitats within the development boundary — for example, restoring grasslands, adding woodland areas, or improving connectivity between ecological features.

2. Off-site units

When on-site uplift isn’t possible, developers can deliver improvements elsewhere, sometimes using habitat banks: areas of pre-created, high-value habitat that generate biodiversity units.

3. Statutory biodiversity credits

A last resort, used when neither on-site nor off-site options are feasible. These are government-issued credits, designed to fill unavoidable gaps rather than be a go‑to solution.

Most schemes blend the three to meet their uplift target.

Why does Biodiversity Net Gain matter to conveyancers?

Although BNG primarily affects the planning and development stages, it’s becoming increasingly important in transactions too, especially where:

  • land is being sold for development
  • development sites change hands mid‑process
  • off-site biodiversity units are being purchased or traded
  • long-term habitat management obligations (often 30 years) are attached to land

Key considerations include:

  • Legal agreements, such as Section 106 obligations securing habitat creation and maintenance
  • Land charges that bind future owners to ongoing ecological management
  • Liability and stewardship, including who is responsible for monitoring and maintaining habitats over the long term
  • Valuation, since BNG potential can inflate or depress a site’s development prospects

A little early clarity can prevent big headaches later.

Is BNG good news?

In a word: yes. It ensures development contributes positively to the environment, encourages smarter land use, and helps protect ecosystems that support everything from pollination to flood resilience.

It also aligns with wider sustainability goals and, increasingly, consumer expectations. Nature recovery is no longer a fringe concern – it’s becoming part of mainstream development practice.

Biodiversity Net Gain is a significant, forward‑looking change to how we plan, build, and value land in England. For conveyancers, it’s another dimension of due diligence – but also an opportunity to help clients understand a major shift in environmental responsibility.

And despite its name, BNG isn’t about hugging trees (though no judgement). It’s about ensuring that development leaves nature better off than it found it – with a clear metric, a legal backbone, and practical pathways to deliver meaningful ecological uplift.

Contaminated land is one of those phrases that can make buyers sit up a little straighter… usually because it sounds like something lifted from an ITV crime drama rather than a property report.

In reality, it’s a very common consideration in conveyancing, particularly in areas with an industrial past, and it’s far less alarming once you understand what sits behind it.

Here’s a clear, friendly five‑minute explainer to help conveyancers cut through the worry and get straight to the facts.

What do we mean by contaminated land?

In simple terms, contaminated land is land that contains substances capable of causing harm to people, property, protected species, or the wider environment. These substances might be present because of:

  • former industrial activity (factories, gasworks, mills, workshops)
  • waste disposal or historic landfill sites
  • chemical storage, fuel tanks, or hazardous materials
  • activities that took place decades ago, long before environmental regulation

Crucially, you can’t diagnose contaminated land by looking at it. It could be a spotless garden today but have a past life as something far less wholesome. That’s why desk studies, environmental searches, and local authority records matter so much.

Where does it tend to occur?

Anywhere, but especially in places with an industrial heritage. Many urban areas across the UK once hosted small workshops, yards, and factories that no longer exist. Rural sites can also be affected, thanks to historic waste pits, infilled ponds, or agricultural chemicals.

Even closed landfill sites can leave a legacy, as gases and leachate can persist long after operations stop.

Why does contaminated land matter in a property transaction?

Three key reasons:

1. Health and environmental risks

Some contaminants can affect human health or pollute groundwater and watercourses if not identified and managed properly.

2. Liability

Under environmental legislation, landowners can be held strictly liable for the cost of remediation – even if they weren’t the ones who caused the contamination and even if the activities happened decades ago.
This is where the “polluter pays” principle tries to help; but the original polluter often can’t be traced, leaving the current owner responsible.

3. Significance in mortgage lending

Lenders tend to be cautious. If contamination is suspected, they may require further investigation or assurances before agreeing to lend.

How do we identify potential contaminated land?

Environmental searches are the starting point. They draw on datasets that look for things like:

  • historic and current industrial uses
  • registered waste sites or landfill sites
  • pollution incidents and enforcement notices
  • hazardous substance consents
  • historic maps showing potentially contaminative activities
  • fuel stations, tanks, and energy facilities
  • groundwater vulnerability

These searches don’t declare a site ‘contaminated’ – they simply flag whether further investigation is sensible.

If needed, a phased investigation follows:

Phase 1: Desk study and site walkover
Phase 2: Intrusive investigation (soil/groundwater testing)
Phase 3: Remediation (if necessary)
Phase 4: Verification (prove it’s been cleaned up)

What does this mean for the homebuyer?

More often than not, environmental searches return a “no further action” result and everyone moves on. But when they don’t, it’s important to explain clearly:

  • A “potential risk” doesn’t mean the site is unsafe.
  • Further enquiries or specialist advice may be required.
  • Planning conditions for newer developments often mean contamination has already been investigated and addressed.
  • Remediation is possible and common – but it should be understood before exchange.

Also, failing to disclose known contamination can expose sellers and conveyancers to legal claims, so transparency is essential.

Contaminated land isn’t a deal‑breaker; it’s a reminder of the UK’s rich and sometimes messy industrial past. With the right searches, checks, and professional support, it’s entirely manageable – and often already accounted for in planning or site redevelopment.

Buyers simply need clear information so they can weigh the risks, understand their responsibilities, and proceed with confidence.