We build dedicated online stores for businesses whose operation has outgrown a template. Full access to the source code, the database and the infrastructure. Integrations — order management and ERP, payments, couriers, multi-language, multi-currency, tax and your marketing stack — specified up front and built in, not searched for in a plugin directory afterwards.
The source code and the database are yours
(a repository you own and a database you can query, from day one — not a rented tenancy you would have to escape from later)
Integrations are the brief, not a plugin search
(order management, payments, couriers, ERP, tax and your marketing stack are specified before the build starts, then built rather than bolted on)
Built by the people who run the campaigns
(feeds, consent, conversion tracking and server-side measurement are part of the build, because a store that cannot be measured cannot be scaled)
Describe your catalogue, your markets and the systems that must connect. Within 24 hours we'll reply with the questions that decide the scope — and a view on whether a custom build is even the right call.
30 minutes • no obligations
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Plenty of suppliers call a themed template a bespoke store. Here is the version of ownership we actually mean, itemised — so you can hold any supplier, including us, to it.
Source code
Your repository, your licence, full history. Another agency can pick it up, or your own developer can. We write it to be read by someone who was not in the room — documented decisions, conventional structure, no private framework only we understand.
Database
Direct access to your own database, with a documented schema. You can query orders, customers and products yourself, connect a BI tool, and export everything without asking anyone's permission or paying for an API tier.
Hosting and infrastructure
Deployed to accounts registered to your company. Domains, DNS, storage, CDN and environment variables sit with you. If our relationship ends, nothing has to be migrated — access changes hands and the store keeps running.
Data and integrations
API keys and connector credentials belong to your company, not to an agency account. Your customer, order and analytics data stays in systems you control, which also makes the GDPR position considerably simpler to describe.
This is the same principle we apply to advertising accounts, analytics and automation across every engagement: the infrastructure and the data stay on your side of the table.
Store builds rarely fail on design. They fail where two systems disagree about stock, price or order status — so that is where the specification work goes first.
Order and inventory management
Two-way sync with the system that actually runs your operation — BaseLinker, an ERP, a WMS or a bespoke back office. Stock levels, prices, orders, statuses, invoices and returns flow both ways with a defined source of truth for each field, so nobody is reconciling spreadsheets at month end.
Payments and checkout
Card, wallet, instalment and pay-later providers integrated to match how your market prefers to pay, with a checkout that keeps them in one flow. Recurring and deposit models supported where the business needs them; card data stays with the provider, never in your database.
Logistics and fulfilment
Carrier and pick-up-point integrations, live rates, label generation, tracking pushed back to the customer, and rules that pick the right option by weight, country and value. Returns handled as a real flow rather than an email address.
Multi-language and multi-market
Real localisation, not a translation widget: per-market URLs, correct hreflang, market-specific catalogues, content and legal pages, and a routing model that lets you launch a new country without cloning the whole store.
Multi-currency, pricing and tax
Per-market currencies with prices you control rather than a live conversion nobody trusts. Country-level tax rules, gross and net display, B2B validation where relevant, and invoicing wired into your accounting system.
Marketing and analytics stack
Product feeds for Google, Meta and marketplaces, consent management, GA4, server-side tracking, enhanced conversions, CRM and email or SMS platform. Built in during development, which is far cheaper than retrofitting it after launch.
Something not listed? Most projects include at least one integration nobody has built before. Tell us what it has to talk to.
We build it as the destination for paid traffic we will also be accountable for. That changes which decisions get argued about during development.
Speed as a feature
Core Web Vitals treated as a build requirement rather than a post-launch fix, on the devices your buyers actually use. Image handling, rendering strategy and third-party script discipline decided during development.
Checkout designed to be finished
The fewest steps your operation genuinely needs, guest purchase where it makes sense, clear delivery cost and date before commitment, honest error handling, and payment options in the order your market prefers.
Search, filters and navigation
On-site search and filtering that works on a real catalogue with real attribute mess — because for large stores this, not the homepage, is the main path to purchase.
Product pages that answer objections
Structured content, media, variants, stock and delivery expectation, reviews, and the specification detail a considered purchase requires — plus the structured data that makes the page eligible for rich results and citable by AI search.
Already trading and losing people mid-funnel? A UX audit is the cheaper first move — it tells you whether you need changes or a rebuild.
Nobody can price a custom store honestly from a briefing call. The first stage produces the requirements — and it is yours to keep whatever you decide next.
Discovery and specification
A paid first stage that produces the requirements, the integration map, the data model and a realistic estimate. Fixed price and useful even if you build elsewhere — you own the document either way.
Fixed-scope build
The store built to the agreed specification, in stages you can see, with staging environments and a defined launch and migration plan. Priced on scope, not on a day-rate meter, so both sides carry the risk of an accurate estimate.
Care and growth
After launch: maintenance, security updates, monitoring, and a monthly allocation for changes and conversion work. The store keeps improving instead of freezing on launch day.
No licence fees to us and no percentage of your revenue. Third-party costs — hosting, payment processing, carrier accounts, any commercial libraries — are contracted in your name and paid at cost, so you can see and change them.
Custom development is the correct answer to specific constraints, and the wrong answer to a general wish for something nicer. We will tell you which one you have.
It makes sense when
Probably not, when
Migration and measurement are planned as their own workstreams. That is what separates a launch from an incident.
Discovery and specification
We map the commercial model, the operational process and every system that has to connect. Out of it comes a requirements document, an integration map, a data model and an estimate you can hold us to — or take elsewhere.
Build in visible stages
Development in increments you can review on staging, with integrations built and tested against real data rather than demonstrated at the end. Migration of products, customers, orders and URLs is planned as its own workstream, not improvised in launch week.
Launch, then improve
Redirects, measurement and feeds verified before go-live, monitoring in place after it. Then the store enters a cycle of conversion work and change requests, informed by the same analytics we use to run the campaigns.
A cross-section of work across premium e-commerce, marketplaces, local lead generation and ticketed experiences. Each story shows how the right strategy, capabilities and operating cadence come together around the business model.
Verified reviews on Clutch — the global B2B review platform. Our reviews come from real clients who delivered measurable results with us.
“With Space Ads' support our client saw great month-over-month results in online sales and traffic. The team was responsive, available and budget-aware. They also adapted strategies and tactics to deliver even better outcomes.”Read all reviews
The way we work is consistent across every scope: the business objective comes first, each capability has a defined role, and decisions are made against real business numbers.
Direct strategist contact
You work with the person responsible for direction, priorities and delivery — not a layer of account managers.
Infrastructure on your side
Accounts, analytics, automations, creative and data stay yours from day one — no dependency on the agency.
A daily decision rhythm
We connect marketing and analytics data in one operational view, so evidence turns into priorities and action quickly.
No long lock-ins
A 14-day rolling notice, a clear billing model and a clean handover if you decide to stop.
Fit and ownership. A hosted platform is a good answer when your process resembles the process it was designed for; you trade control for speed and convenience. A custom build makes sense once the constraints start costing real money — B2B pricing rules, configurable products, several markets with different catalogues and tax treatment, an ERP that must remain the source of truth, or per-order fees on volume you already have. You also end up with the source code, the database and the infrastructure in your own name, which changes what happens if you ever want to change supplier.
Yes, and it is the point of the page rather than a reassurance at the end of it. The repository is yours with full history, the database is yours with a documented schema, and hosting, domains and storage sit in accounts registered to your company. API keys for integrations belong to you as well. Another agency or your own developer can take it over; nothing needs to be extracted from us first.
Yes — this is usually the substance of the project rather than an add-on. We integrate order and inventory management systems including BaseLinker, ERP and WMS platforms, and bespoke back offices. What matters is deciding per field which system is authoritative — stock, price, product data, order status, invoices — and then building the sync so both sides agree. That decision, not the connector, is what makes an integration stable.
As real localisation rather than a translation layer. Each market gets its own URLs, correct hreflang, and where you need it a different catalogue, different content and different legal pages. Currencies are set per market with prices you control, rather than a live conversion producing odd amounts. Tax follows country rules, with gross and net display and B2B validation where it applies. The structure is designed so adding the next market is a configuration job, not a second store.
In practice, whichever ones your market actually uses — card and wallet processing, local payment methods, instalment and pay-later options, plus carriers, pick-up-point networks, live rate calculation, label generation and tracking. The selection follows your customers' habits and your margins. Card data always stays with the payment provider; it is never stored in your database.
It depends almost entirely on the integration surface, not on the number of pages. A focused store with a small number of well-documented integrations is a matter of weeks; a multi-market build with ERP sync, B2B pricing and complex logistics runs to months. That is exactly what the discovery stage exists to establish — you get a realistic timeline and estimate before committing to the build.
Yes, and migration is planned as its own workstream rather than an afterthought. Products, variants, customers, order history and content move across with a validation pass, and the URL map plus redirects are prepared before launch so hard-won search visibility survives the change. We check indexation, measurement and feeds after go-live rather than assuming they came through.
That is the usual reason clients come to us for the build in the first place. Space Ads runs paid media, analytics and conversion work, so feeds, consent, server-side measurement and structured data are built in from the start instead of retrofitted. You are not obliged to buy both — but when one team owns the store and the campaigns, nobody gets to explain a bad month by blaming the other side.
Describe your catalogue, your markets and the systems that must stay in sync. On the first call we'll go through the integration surface, what would drive the timeline, and where a hosted platform would honestly serve you better.
