Why the Best Commercial Space Is Never on the Portals
If you have spent weeks scrolling commercial property portals and found nothing that works, you are not searching in the wrong places — you are searching in the wrong way. A significant proportion of the UK's available commercial space is never publicly advertised. This guide explains why, and what to do about it.
You have spent weeks on CoStar, Rightmove Commercial, LoopNet, and every local agent's website. You have shortlisted a dozen properties, viewed six, and found that three were already under offer, two were not what the marketing suggested, and one was genuinely unsuitable. You are starting to wonder whether the right property for your business actually exists.
It does. But there is a good chance it is not on any portal.
Why commercial property is often not publicly advertised
The commercial property market is not like the residential market, where almost every property available for rent or sale appears on Rightmove within days of coming to market. Commercial property has a significantly higher proportion of off-market transactions — deals done directly between landlords and tenants without public advertising. Here is why.
Private landlords do not always use agents. A substantial proportion of UK commercial property — particularly smaller units, converted premises, rural space, and properties held by estates, private individuals, and family trusts — is managed directly by the owner without an agent. These landlords do not place properties on portals. They fill vacancies through word of mouth, direct approaches, local knowledge, and increasingly through platforms that allow occupiers to find them.
Space becomes available before it is officially vacant. Many commercial leases include break clauses or are approaching expiry. Landlords who know their current tenant is planning to leave — or who have received a formal break notice — often begin looking for a replacement tenant before the space is technically available. This space will not appear on portals until the current tenant vacates.
Institutional landlords let to known occupiers first. Major property funds, REITS, and institutional landlords often maintain a list of active requirements from known occupiers and approach them directly before going to open market. If you are not known to these landlords, you are unlikely to hear about space before it is publicly advertised.
Some landlords are cautious about advertising vacancy. A high-profile vacancy in a multi-let office building or retail park can give other tenants an impression of declining popularity. Some landlords prefer to find tenants quietly rather than listing publicly.
Good space is let before it is advertised. In markets with very low Grade A vacancy — Edinburgh at 0.37%, Bristol and Leeds at similarly tight levels — good space is often let to known, active requirements before it ever goes live on a portal. By the time a portal listing appears, the deal may already be done.
What this means for your search
The implication is straightforward: if you are searching exclusively through portals, you are only accessing a fraction of the available market. Specifically, you are accessing the fraction that landlords could not let through other channels.
This does not mean portal stock is bad — much of it is perfectly suitable. But it does mean that the sharpest deals, the most sought-after locations, and the properties with the best landlords are often let through other channels before they reach you.
How to access off-market commercial property
Use a tenant's agent. A RICS-qualified commercial agent acting for you as the occupier — rather than for the landlord — will have relationships with landlords and other agents that give them access to space before it is publicly listed. They will know about break notices that have been served, buildings approaching lease expiry, and landlords who are quietly looking for new tenants. For requirements above approximately 2,000 sq ft, using a tenant's agent costs you nothing (their fee is paid by the landlord on completion) and gives you a material advantage.
Post a requirement publicly. Rather than searching through what landlords have chosen to advertise, tell the market what you need — and let landlords and agents with matching space come to you. This is exactly what RE:match does. Your requirement is visible to landlords and agents with property that fits your brief, including those who have not yet listed publicly, or who do not list on portals at all.
Network directly in your target area. Commercial property is a relationship business. If you are looking for space in a specific town or district, making direct contact with the key landlords and agents in that area — and letting them know what you are looking for — can surface opportunities that never appear online. This is time-consuming but effective for local searches.
Contact local commercial agents proactively. Every commercial agent maintains a register of requirements from active tenants. By registering your requirement with every active agent in your target area, you ensure you hear about properties as soon as they become available — including before they are publicly marketed.
The reverse marketplace model
RE:match is built on the insight that the traditional portal model gets the search the wrong way round. Portals ask you to find what landlords have decided to advertise. RE:match inverts this: you describe what you need, and landlords and agents with matching space come to you.
This is more effective for three reasons. First, it reaches landlords who are not advertising — private landlords, institutional landlords with unannounced vacancies, and agents with properties that are about to come to market. Second, it pre-qualifies the response — every landlord who responds has read your brief and believes they have something suitable. Third, it puts you in control — you review what comes in and engage on your terms, rather than chasing listings.
Frequently Asked Questions
How much commercial space is let off-market in the UK?
There is no definitive national figure, but commercial property professionals consistently estimate that a meaningful proportion of lettings — particularly in smaller markets, rural areas, and among private landlords — are arranged without public advertising. In some local markets, the majority of smaller unit transactions are off-market.
Is off-market commercial space a sign of lower quality?
Not at all. Some of the best-located and best-managed commercial properties are let quietly and consistently, because good landlords with well-maintained space rarely struggle to find tenants through their existing networks. Public advertising is often a sign that a property has not let through preferred channels — not that it is superior stock.
How does RE:match help me access off-market space?
When you post a requirement on RE:match, it is visible to landlords and agents who subscribe to the platform — including those who do not use portals or do not have their available space currently listed anywhere publicly. By broadcasting what you need rather than searching what is advertised, you reach a broader slice of the available market.
If you're looking for commercial space, post your requirement on RE:match — it takes a few minutes and costs nothing. Landlords and agents with matching space respond directly to your brief at rematch.co.uk.
About RE:match
RE:match is the UK's reverse commercial property marketplace — where business owners post what space they need and landlords respond. Founded by a RICS-qualified chartered surveyor, our platform is built around how commercial property deals really get done.
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