A developer plays for different stakes than an estate agency. You are not selling a continuous stream of listings, but one development - and you have limited time to do it. A client considering a purchase worth hundreds of thousands will study your site closely before booking a viewing. What they see there decides whether they call at all.
Short answer: a development website needs renders and a virtual tour at a quality that defends your price, an interactive unit picker with live availability and prices (in Poland publishing prices has been a legal requirement since 2025), a build timeline, easy contact with the sales team, and an English version if you target international investors.
Kluczowe wnioski
- A developer sells one development, so the site must build the project's prestige, not act as a listing catalogue.
- An interactive unit picker (floor plan, level, availability, price) saves the client digging through PDFs and shortens the path to an enquiry.
- Investment buyers are often foreign - a language version can be the condition for an enquiry.
- In Poland, flat prices have to be published on the website - since July 2025 that is a legal requirement, not a marketing choice.
How it differs from an agency website
An agency sells itself and a continuous flow of listings - the listing base, personal brand and seller acquisition matter. A developer sells one specific project: what matters is the prestige of the development, transparency of availability and confidence that construction will finish on time. What an agency's site needs is covered in A real estate agency website.
That is why the architecture differs: instead of a search engine over hundreds of listings, you have one polished presentation of one project, with a unit picker inside it.
What a development website needs
- Renders and a virtual tour at a quality that defends your price per square metre.
- An interactive unit picker: level, floor plan, size, aspect, status.
- Current prices and availability for every unit - a legal requirement in Poland since 2025.
- A build timeline and construction progress - it builds trust.
- Online viewing booking plus fast contact with the sales team.
- Location: map, neighbourhood, transport, schools, amenities.
- An English version for international investors.
An interactive unit picker
The client wants to see for themselves: which flats on the third floor are still free, what the floor plan looks like, the size and which way the windows face. A static PDF table does not replace it, and every extra step - downloading a price list, hunting for a floor plan in a separate file - is a point where some clients give up.
Live availability and prices
In Poland this is no longer a choice. Since 11 July 2025 the act on transparency of housing prices has required developers to publish on their website the prices of the flats and houses they offer, and of other items the buyer pays for, such as parking spaces or storage units - and to keep them up to date. The website address has to appear in advertising, and the data must be reported daily to the dane.gov.pl portal. Breaches carry financial penalties.
For the site that means one thing: prices belong next to the units and have to be current. It is simplest when they come from the same source as availability - a spreadsheet or sales system - rather than being retyped by hand in several places. Confirm the details of the obligations with a lawyer.
Timeline and construction progress
The biggest worry for an off-plan buyer is "will this get built, and on time". A section with the timeline, current site photos and the current stage removes that worry more effectively than any marketing slogan.
Speed and presentation quality
Renders and 3D tours are the heaviest parts of a development site, and buyers mostly view them on a phone. If the gallery takes seconds to load, some of them will not stay long enough to reach the floor plans - speed translates into sales. The answer is not dropping the renders but preparing them: resized images and a tour that loads only on request.
International investors and languages
If foreign buyers - or expatriates - buy in your development, an English version is not an add-on; it is often the condition for an enquiry to exist at all. It matters that it is localised (sizes, prices, the buying process explained for a foreign investor), not translated word for word.
Automation: stop losing after-hours enquiries
Many enquiries about flats arrive in the evenings and at weekends, when the sales office is closed. The baseline is an enquiry form on every unit and a clear note of when a salesperson will get back. If there are a lot of such enquiries, part of the work can be taken over by an AI agent on the site: it answers questions about size, price or completion date and collects the contact, so in the morning your salesperson gets an enquiry with the details already in place.
When to start: before permits or after
The most common mistake is waiting for a website until prices can be published. Until then the social campaigns and the hoarding on the fence lead nowhere, and the interest generated in those first weeks simply evaporates.
Before permits
A landing page with sign-ups
One page, a waiting list, none of the details you cannot confirm yet.
Sales launch
The full development site
Unit finder, floor plans, prices, viewing bookings.
Selling
Live availability
Unit status changed in one place and correct everywhere.
Sold out
A reference
The finished project stays as proof for the next one.
A sign-up landing page can be live in a week: project name, location, indicative sizes, planned completion and an email field with consent to be told when sales open. That list is one of the cheapest sources of sales a developer has - on launch day you send one email to people who raised their hand, instead of starting from zero with advertising.
The full development site is worth building once floor plans, prices and the schedule exist. Before that it would only have to be rewritten. How to spread marketing across the whole sales period is covered in property development marketing.
The unit finder is what sells
There is one element on a development site that almost every visitor uses: the list of available units. A few things decide whether it works:
- Filters that match the decision - rooms, floor, size, price, aspect, garden or terrace. Not the staircase number.
- Status visible immediately - available, reserved, sold. Hiding sold units wastes them: they prove the project is selling.
- A floor plan on every unit, at a resolution that can be zoomed on a phone.
- A price on every unit. In Poland it is not just good practice - developers are legally required to publish prices, so "price on request" is not an option.
- An enquiry tied to a specific unit, with the number filled in, so the salesperson knows what the call is about.
If units live in a spreadsheet or a sales system, connect the site to that source. Changing status by hand in two places ends with the site offering something you sold last week, which is the most expensive kind of out-of-date.
Renders, tours, and what actually convinces
Renders sell atmosphere, but the decision gets made on something else: a dimensioned floor plan, the view from the window, where the pillar sits in the garage. Have both, and do not let the first replace the second.
A practical order of spend: dimensioned plans, then construction progress photos, then interior renders, then a 3D tour. Site photos updated monthly do more for trust than another render - they show the project is actually being built.
Flats, houses and commercial units are three different sites
An apartment building needs a unit finder and a comparison view. A housing estate needs a site map and plot descriptions. Commercial units are bought by a different customer looking at frontage, power supply and footfall - and none of that fits the same template.
If you run several types at once, separate them into sections with their own structure rather than forcing them into one list with a "type" filter.
The project versus the developer's brand
A development site sells one project and stops being needed once it is sold out - but it should not disappear. Completed projects are the strongest proof when selling the next one, especially to buyers checking whether the developer delivers.
Hence the structure that works in practice: the developer's company site as the permanent address, with projects as pages beneath it. A separate domain per project looks good on a business card and costs every bit of visibility earned - each one starts from zero.
How much it costs
What a property developer's website costs depends mainly on how you sell units and how much has to happen automatically. A simple pre-sales page with a sign-up list is a different project from a site where buyers filter flats by floor and size themselves, and prices go to dane.gov.pl every day.
| Scope | What it includes | Our price list |
|---|---|---|
| Pre-sales page | One page for the development: location, renders, schedule, sign-up list | from PLN 5,000 |
| Developer's company site | Brand, completed developments, development pages, contact | from PLN 12,000 |
| Site with a unit picker | Interactive flat selection, statuses and prices from the sales system, data for dane.gov.pl | from PLN 26,000 |
Three things add most to the price: an interactive unit picker (floor plans, filters, statuses), integration with the sales system, so nobody retypes prices by hand, and language versions - each extra one is PLN 1,000 in our price list plus the content that has to be prepared. Renders and virtual tours are usually produced by a separate studio and are a separate line in the project budget. On top of that comes care after launch: for a site with a unit database, that is the Tech Care plan at PLN 449 a month.
It is worth setting this against the whole development. With a few dozen flats at several hundred thousand zloty each, the website is a small part of the marketing budget, and it works for the entire sales period - including when the sales office is closed. We show how to count spending like this for real estate agencies in How much a real estate website costs.
FAQ
How much does a property developer's website cost?
In our price list a simple pre-sales page starts from PLN 5,000 net, a developer's company site from PLN 12,000, and a site with an interactive unit picker and sales-system integration from PLN 26,000. The unit picker, integrations and language versions add the most to the price.
Do I need a separate site for every development?
Usually yes - a separate site (or section) lets you build a coherent project narrative and rank for phrases tied to that specific location. The developer's corporate site then acts as an umbrella.
Can the unit picker integrate with our system?
Yes - availability and prices can sync automatically from your sales system, so nobody has to update tables by hand.
How long does such a site take?
Usually 6 to 12 weeks, depending on whether an interactive unit picker, integrations and language versions are included.
Does a developer have to show prices on the website?
In Poland, yes. Since 11 July 2025 the act on transparency of housing prices has required developers to publish on their website current prices of the flats and houses they offer, and of other items the buyer pays for, and to report the data daily to dane.gov.pl. Publishing prices is no longer a marketing decision - the decision is how clearly you show them. We break it down step by step in housing price transparency.
Summary
A developer's website has one job: take the client from the render to a booked viewing, with no friction and no PDFs. Renders, an interactive unit picker, transparent availability, a timeline and a fast response are what decide it.
If you are planning a development website, you can estimate your scope in the calculator.