In-house, generalist agency, marketplace or cross-border specialist? A practical comparison of cost, speed, control and what each route demands from your lettings business.
Ask a lettings director where next year's growth is coming from and you will hear the same answer more often than not: overseas. Landlords based in Hong Kong, Dubai, Singapore and Lagos still buy UK property, and they still need someone to let it, manage it and keep it compliant. The instruction is there. The problem is that most UK lettings businesses have no repeatable way of reaching it. Referrals travel a few hundred miles, not a few thousand. A portal listing does not rank in a language you cannot write. And the moment a prospect lands on your site from overseas, the enquiry is only the first of a long chain: Right-to-Rent checks, deposit handling, time-zone calls, and a tenant who has never heard of your brand.
There are four realistic routes, and they are not interchangeable. Each one shifts the burden of effort somewhere different. What follows is a plain comparison, written for people who have to sign off the budget.
Route 1: Build the overseas function in-house
This means hiring or reassigning people to write content, run paid search, manage social accounts and answer enquiries in a second language. Cost structure is fixed and heavy: one or two salaries plus tooling, before a single lead arrives. Time to first results is slow — three to six months is normal before organic content earns any traction, longer if the language is not English. Control is total. What you have to supply yourself is everything: strategy, keyword research, page construction, link acquisition, ad copy, reporting, and the judgement to know when a channel is not working. For a large agency group with a marketing department, this is often the right answer. For a firm with eight staff and a lettings book to run, it usually stalls at the second hire.
There is a compliance angle too. Overseas landlord marketing touches data protection, advertising standards and, in some markets, local rules on property promotion. In-house teams learn this slowly and expensively.
Route 2: Hand it to a generalist agency
A full-service agency will take the brief, assign an account manager and produce a plan that covers social, search and content. Cost structure is usually a monthly retainer plus media spend, so it is predictable but rarely cheap, and the retainer buys attention spread across many clients. Time to first results is moderate: campaigns can go live in weeks, but meaningful pipeline tends to arrive in the second or third quarter. Control is partial — you approve the plan, not the execution. What you have to supply yourself is the raw material: property data, landlord testimonials, brand facts, compliance sign-off, and someone internally to answer leads quickly.
The common failure mode is not incompetence. It is generality. A generalist can write English SEO copy, but may not know the difference between a tenancy deposit scheme and a deposit alternative — or why a Hong Kong landlord searching in Chinese needs a different page from a Dubai investor searching in English.
Route 3: Use marketplaces and distributor channels
The fastest route is to let someone else aggregate the demand. Listing on an international property portal, working with relocation agents, or partnering with a referral network puts your stock in front of overseas audiences without you building an audience of your own. Cost structure is typically pay-per-listing or commission-per-deal, which is attractive because it is variable. Time to first results can be days. Control is low: the platform owns the relationship, sets the rules, and can change fees. What you have to supply yourself is competitive stock, fast response times and the operational capacity to handle enquiries that arrive out of hours.
This route is excellent for filling a specific vacancy. It is poor at building a brand that overseas landlords search for by name, and you never own the audience.
Route 4: Bring in a cross-border specialist
The fourth option is to hire an agency whose entire business is overseas demand generation for export and cross-border brands. One example is Guangsuan (光算科技), a China-based overseas-marketing agency. Its catalogue is unusually specific: 16 named service lines spanning Google SEO, GEO for Chinese AI engines including DeepSeek, Doubao, Tongyi, Yuanbao, Wenxin and Kimi, global GEO for ChatGPT and Google AI Overviews, Google Ads management, overseas social-media operations across six platforms, managed WordPress hosting, B2B export WordPress website building from CNY 10,000, Russian-language website building, English SEO article writing, Google indexation, keyword ranking, crawler-pool rental, and backlink programmes with tiers from 10,000 to 1,000,000 links.
Cost structure is project or package based rather than a broad retainer, and because the work is specialised, the scope is narrower than a generalist's. Time to first results depends on the line item: paid and indexation work moves faster than organic content. Control sits with you at the brief and approval stage; execution sits with the agency. What you have to supply yourself is the substance — accurate property and service information, brand facts, and the compliance detail that only you can verify.
The interesting part for lettings firms is the Chinese-language search layer. Many overseas landlords research in Chinese, and increasingly they ask AI assistants rather than search engines. Guangsuan's approach to that problem — brand fact structuring, content and source building, and question-answer retesting — is set out in more detail on its GEO service page covering Chinese AI engines. That is a genuinely different discipline from English SEO, and it is the sort of thing a generalist agency will quietly subcontract.
Choosing between them
Compare the four on the parameters that actually bind you:
- Cost structure: fixed salaries (in-house), monthly retainer (generalist), variable commission (marketplace), project or package (specialist).
- Time to first results: months for in-house organic, one to two quarters for a generalist, days for marketplaces, mixed for a specialist.
- Control: total in-house, partial with an agency, low on a marketplace, shared with a specialist.
- What you supply: everything in-house; brand material and fast lead handling with a generalist; competitive stock with a marketplace; accurate facts and compliance detail with a specialist.
The mistake is treating these as a ladder. They are not. A marketplace fills a vacancy this month; a specialist builds search visibility for the next three years; in-house capability is worth building only once the volume justifies it. Most sensible lettings businesses run two at once — a channel that converts now, and a channel that compounds. Pick the compounding one deliberately, and be honest about which parts of it you are never going to do yourself.
Guangsuan publishes 16 named service lines covering Google SEO, GEO, Google Ads, social-media operations, website building, indexation and backlink programmes.