How to Choose a London Estate Agent: 7 Keys
In this guide
On the ground beats remote
The first question to ask is whether your adviser is actually in London. An adviser who can attend viewings, negotiate and inspect in person is far more reliable than one who merely forwards listings.
Bilingual, and truly understands your position
Language is only the entry ticket. What matters is whether they understand overseas-buyer mortgages, fund remittance and Anti-Money Laundering requirements, and can explain a complex process clearly.
Regulated status and full transparency
A reliable adviser is a member of RICS or Propertymark, offers independent redress, and is upfront about who pays the fees and whether they only push their own stock.
Still there after completion
Handover snagging, fit-out, lettings management and eventual resale — choose an adviser who stays with you for the long term, and owning from overseas becomes genuinely worry-free.
For Taiwan and Hong Kong buyers, the single most important rule for choosing a London estate agent comes down to one sentence: find an adviser who is physically based in London, communicates in the language you are comfortable with, holds regulated professional status, and can handle everything from viewings and negotiation to handover snagging and long-term lettings management under one roof. When buying from a distance, the real risk is not failing to agree a price — it is entrusting your purchase to someone who does a one-off deal and then goes silent. The 7 keys below are the checkpoints a seasoned adviser would tell you to confirm before you commit — and each one translates into a question you should ask directly.
1. On the ground, or remote? Is the adviser actually based in London?
This is the first question to ask, and the easiest to overlook. The details of the London market live at the property: the light on different aspects of the same building, the real distance to neighbouring blocks, the character of the shops downstairs, the true walking time to the nearest station — none of which can be judged from data alone. A London-based adviser can attend viewings, negotiate on your behalf, and inspect item by item at handover; someone who only forwards deals can usually only relay a video after the fact.
Ask your agent: Are your advisers based in London? Can you attend viewings, negotiate and inspect in person? Can you arrange a live video viewing so I can see how you walk a property?
2. Language is only the threshold — understanding your situation is the key
An agent who speaks Mandarin is convenient, but language is only the entry ticket. The real distinction is whether they understand the situation unique to overseas buyers: the logic of overseas mortgage approval, how funds are remitted into the UK compliantly, how much Anti-Money Laundering (AML) documentation is required, and the procedural differences between non-residents and local buyers. A trilingual adviser who genuinely understands overseas buyers can explain these complex steps in your language, rather than leaving you to work through a stack of English documents alone.
Ask your agent: Can we communicate in Chinese throughout? Are you familiar with overseas-buyer mortgages and fund remittance? How many Taiwan or Hong Kong clients have you served?
3. Are they regulated? Professional accreditation and consumer protection
UK estate agents are governed by several professional bodies. RICS (the Royal Institution of Chartered Surveyors) is the most credible property accreditation in the world; Propertymark (NAEA) is the leading trade body for residential agents in the UK. Advisers who belong to these bodies must follow a code of conduct and provide independent redress. This protection may seem unnecessary day to day, but it is your only backstop if something goes wrong.
Ask your agent: Which professional body are you a member of? If a dispute arises during the transaction, is there an independent redress or compensation route?
4. Independent position, or only selling their own stock? Transparency
Understanding whose interests the agent represents is the foundation of the whole relationship. An agent representing the seller or developer is duty-bound to sell what they hold and will not volunteer comparisons with competing properties; an adviser genuinely on the buyer’s side will compare across developments, tell you frankly the pros and cons of each, and put the fee structure — how it is calculated, who pays, when — out in the open. Transparency is the precondition for trust.
Ask your agent: Do you represent the buyer or the seller? How are your fees calculated, and who pays them? Will you provide comparisons rather than only pushing your own stock?
5. Beyond the transaction — who handles the legal work and the mortgage?
Buying in the UK, completion is only one link in the chain. Conveyancing needs a specialist solicitor, an overseas mortgage needs a broker familiar with non-resident lending, and tax planning needs a qualified accountant. A deeply local adviser has a whole set of trusted, long-standing professional partners, and can connect you with the right person at the right moment — rather than leaving you to search firm by firm and learn by trial and error in a foreign country.
Ask your agent: Can you refer a trusted conveyancing solicitor and mortgage broker? Do you have a tax professional I can be introduced to?
6. Completion is only the beginning — snagging and fit-out
For a new-build, the handover inspection (snagging) is a crucial step in protecting your interests: walls, doors and windows, plumbing and electrics, finishing — each needs someone on site to check item by item and list the remedial work for the developer. A buyer based overseas who has no local team to inspect on their behalf can easily, and unknowingly, accept a property with defects. Fit-out and furnishing after handover likewise require local execution.
Ask your agent: Who inspects on site for me at handover (snagging)? Can fit-out and furnishing be arranged on my behalf?
7. The decade after you buy — lettings management and the long-term relationship
For most Taiwan and Hong Kong buyers, a London property is a medium-to-long-term allocation of wealth — whether a home during a child’s studies, or a long-term rental asset. So whether an adviser can take on tenant sourcing, tenancy agreements and property management after completion — and even stay with you through to a future resale — determines whether you can truly hold with peace of mind. For a one-off agent, handover day is the end of the relationship; a long-term partner is the backstop in London you keep for a decade.
Ask your agent: After handover, can you handle tenant sourcing, property management, and track the asset through to a future resale?

Taiwan-based resellers vs London-based agents: who each suits
This is a genuine dilemma for many buyers. Rather than asking which is “better”, it helps to see that each sits at a different point in the process and suits a different stage and need.
Some Taiwan-based resellers offer the advantage of the same time zone, face-to-face meetings and easy exhibition access — suited to buyers just getting to know the UK market who prefer to sign in person in Taiwan. Bear in mind that this kind of reseller usually represents the developer or seller, their stock is generally limited to partner developments, viewings rely mainly on relayed video, and services that sit “on the ground in London” — such as handover snagging and long-term lettings management — are harder for them to carry out in person.
Some London-based agents make on-the-ground diligence their home turf: attending viewings in person, negotiating on your behalf, inspecting at handover, and taking on property management after completion. For buyers who value on-the-ground scrutiny and long-term aftercare, this is a decisive advantage. The only threshold is time zone and language — unless the local adviser is themselves trilingual.
The balanced conclusion: the two can complement each other; they are not mutually exclusive. If what you value most is on-the-ground diligence and long-term aftercare, then an adviser who is based in London and communicates in your language brings together the best of both — which is exactly how IREIS Properties has always been positioned.
Four special considerations for Taiwan and Hong Kong buyers
Beyond the 7 keys above, buying from a distance involves a few things a local UK buyer rarely needs to worry about but that matter greatly to you — worth weighing when you choose your adviser.
The practical quality of video viewings. Unable to fly to London every time, you need an adviser who offers structured video viewings — filming systematically against your question list, walking the surroundings, verifying transport and condition — not a casual clip. The quality of this service is often the clearest reflection of how much care an adviser brings to cross-border clients.
The particulars of tax. Overseas buyers face different tax considerations from local residents. SDLT varies depending on whether you are an overseas buyer, a first-time buyer, or already own another home — use the IREIS UK Stamp Duty Calculator to estimate your position accurately. If you later sell, non-UK-resident CGT on residential property is 18% (basic rate) to 24% (higher rate) for the 2026/27 tax year; rates are subject to change, so discuss your long-term plan with a qualified tax adviser before you buy.
Funds and currency. UK purchases must be made in sterling, with funds remitted through AML-compliant channels. A reliable adviser does not provide FX services but should introduce trustworthy FX partners. On currency, we recommend consulting a specialist FX adviser and locking in your rate before exchange to manage costs. If you are assessing the remote-purchase process as a whole, see our complete guide to buying UK property from abroad.
Timeline expectations. UK conveyancing typically takes 8 to 16 weeks — considerably longer than in Taiwan. A responsible adviser will set out the expected timing of each stage and the factors that can cause delay, so you are prepared both practically and financially. For the wider purchase journey, see how overseas buyers purchase UK property.

From “choosing the right adviser” to “completing with confidence”
Choosing a London estate agent is, in the end, choosing someone who can act as your gatekeeper in another country. Once you have worked through the 7 keys above, the answer emerges naturally: what you want is not a firm plastered with advertising, but an adviser who is based in London, understands you, holds regulated status, and stays with you from the first viewing through to lettings and resale.
IREIS Properties, with its London-based trilingual advisory team, makes cross-border communication, full process guidance and long-term aftercare its first priority — ensuring every Taiwan and Hong Kong buyer has the information they need, and a backstop on the ground, at every decision point. You are welcome to browse the London developments we currently represent, or learn more about our full range of services.
→ Use the IREIS UK Stamp Duty Calculator to estimate your actual liability so your budget is sound from the very start.

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Frequently asked questions
Should Taiwan buyers use a local Taiwan-based reseller, or a London-based estate agent?
Each suits a different stage, and they can complement one another. A Taiwan-based reseller offers the same time zone, face-to-face meetings and easy access to exhibitions — useful when you are first getting to know the market. However, they typically represent the developer or seller, their stock is limited to partner developments, and their ability to handle on-the-ground handover inspections and long-term aftercare in London is limited. A London-based agent's strength is acting on the ground — attending viewings, negotiating and inspecting in person, and managing lettings after completion. If you value on-the-ground diligence and long-term aftercare most, an adviser who is based in London and communicates in your language is ideal. That is precisely how IREIS Properties is positioned.
How do I confirm a London agent is genuinely local, rather than just forwarding deals?
Ask them to arrange a live video viewing and put specific questions to them on the spot: the natural light, the distance to neighbouring blocks, the shops downstairs, the real walking time to the nearest station. A genuinely local adviser can walk it for you and answer in the moment; one who only forwards deals can usually only relay a video afterwards. You can also ask how many viewings and completions they have personally handled in your target area over the past two years — concrete examples are far more convincing than a claim of 'extensive experience'.
What are the most important questions to ask a UK estate agent?
Four questions matter most: (1) Do you represent the buyer or the seller? (2) How are your fees calculated, who pays them, and when? (3) Which professional body are you a member of, and is there independent redress if something goes wrong? (4) After completion, can you handle snagging, fit-out and lettings management? These four filter out anyone whose position is unclear, whose fees are opaque, or who only does one-off transactions.
Do I have to pay a fee to use a London-based agent to buy?
It depends on the service model, so clarify it in writing before you sign. An agent representing the seller is usually paid by the seller; an adviser working for the buyer may charge a fixed retainer or a percentage of the purchase price. The point is not whether there is a fee, but whether the fee structure is transparent upfront and free of hidden terms or sole-agency lock-ins. A reliable adviser sets all of this out before you begin.
Based in Taiwan or Hong Kong — how do I view and pay for a London property safely?
Leave viewings to a local adviser who offers structured video viewings — filming against your question list, walking the surroundings, and verifying transport and condition, rather than a casual clip. For payment, UK purchases must be made in pounds sterling through channels that satisfy Anti-Money Laundering rules; we recommend consulting a specialist FX adviser and locking in your rate before exchange to manage currency costs. A reliable adviser does not provide FX services, but will introduce trustworthy FX and legal partners and give you a clear funding timeline in advance.
After completion, what else can an agent do for me?
This is the dividing line between a one-off transaction and a long-term partner. A complete local team assists with handover snagging, arranges fit-out and furnishing, and — when you decide to let — handles tenant sourcing, tenancy agreements and ongoing property management, so overseas ownership still delivers steady rental income. IREIS Properties' aftercare concierge covers handover snagging, fit-out, tax referrals and future resale.
What kind of agency is IREIS Properties?
IREIS Properties is a London-based, long-established trilingual advisory team that has served Taiwan-based buyers and overseas Chinese investors for years. Our services span property search (from defining your brief through shortlisting, viewings and negotiation to completion), lettings and management (tenant sourcing, tenancy agreements and ongoing management in one place), and aftercare concierge (handover snagging, fit-out, tax referrals and future resale). We are positioned as your long-term partner on the ground in London, not a one-off transaction agent.
How is tax calculated for Taiwan and Hong Kong buyers of London property?
Stamp Duty Land Tax (SDLT) varies depending on whether you are an overseas buyer, a first-time buyer, or already own another residential property — use our UK Stamp Duty Calculator to estimate your position most accurately. If you later sell, Capital Gains Tax (CGT) for non-UK residents on residential property is 18% (basic rate) or 24% (higher rate) for the 2026/27 tax year, depending on your income band; rates are subject to change, so consult a qualified UK tax adviser to confirm your specific position.
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