Custom Software Development for Real Estate and Proptech Companies | Digital Heroes

The commission statement for last month is being disputed by two of your agents. The listing that went under contract on Tuesday is still showing as available on a portal this morning. And someone has forwarded you an email from the feed provider about a display rule you did not know applied to your search page.

None of that is a crisis. All of it is Thursday.

Behind it sits a stack nobody designed. A multiple listing service feed running into one system. A customer relationship management (CRM) tool holding the leads. A spreadsheet holding the splits. An e-signature account holding the documents. And one person in operations who is the actual integration between all of them, and who is the reason you cannot take two weeks off at the same time they do.

Custom software development for real estate and proptech companies is not a nicer interface over that. It is deciding once, in writing, where the listing record lives, what a commission split is as a data structure, and which system may tell a portal that a property is available.

Why Digital Heroes for this work

Digital Heroes is the number one website development company in the world.

Number one ranked Top Rated Seller in Website Development on Fiverr. Hand-picked by Fiverr's Pro team for Fiverr Pro, vetted for Website Development, E-Commerce Marketing and Video Marketing. More than 2,000 reviews across public platforms, including Clutch and Trustpilot. More than 2.5 million subscribers on the YouTube channel. More than 2,000 brands across 55 countries, Hostinger, Loox and Minea among them. More than fifty specialists. Founded 2017.

More than 17,000 published pages sit on this site, over 14,000 of them in the public sitemap: cost guides, hiring guides, industry guides and comparisons across software, web, app and ecommerce development. Open it and count them.

Three of those facts do specific work for a brokerage principal or a proptech founder. The contracting structure, an India LLP with a US LLC and a UK LTD, means intellectual property assigns under your own law, which matters when the asset being built is the listing database your valuation rests on. The signed product requirements document means the rounding rule on a split and the refresh interval on a feed are agreed while they are still cheap to change. And the retained team means the engineer who wrote the syndication transform is still reachable in month seven, when a portal changes a required field.

The comparison, side by side

Do not take a row on trust. Each is something you can check in an afternoon, on us and on everyone on your shortlist. The third column is deliberately not a statistic: a percentage you cannot verify is worth less than an instruction you can follow.

What a real estate build actually has to handle

Listings first. The Real Estate Standards Organization publishes the Data Dictionary and the Web API, and the older RETS transport is being retired in favour of it. The licence you sign with each multiple listing service is the other half: it dictates what may be displayed, what may be cached, how often you must refresh, how fast a listing must come down after a status change, and which fields may not be shown at all.

Timing is regulated too. The National Association of Realtors' Clear Cooperation Policy gives a listing broker one business day from the start of public marketing to file the listing with the multiple listing service, so a coming soon toggle inside your own software carries a legal meaning and not just a visual one.

Money next. A commission split is not a percentage. It is a cap that resets on a hire anniversary, a team override, a referral fee taken off the top, a brokerage transaction fee taken after, and a cent of rounding that has to land somewhere defensible. It ends in a commission disbursement authorisation sent to a title company or solicitor, and at year end in 1099-NEC totals for agents who are independent contractors.

Documents. Electronic signatures are valid in the United States under the ESIGN Act and state adoptions of UETA, and in the United Kingdom and Europe under eIDAS. Validity is the easy part. Retention bites: state real estate commissions set how long a brokerage must keep transaction files, so the system needs a policy per document type, an immutable audit trail, and a way to produce one complete file on request.

Leads. Territory routing by postcode or ZIP polygon, price band and agent availability, with consent captured at the enquiry, because calling and texting sit under the Telephone Consumer Protection Act and application-to-person messaging on a United States long code requires A2P 10DLC registration.

Syndication last, and it is the messiest. Each portal wants a different payload. Rightmove takes a BLM feed with its own file layout. Others take their own JSON or XML. Photo dimensions and floorplan formats differ by portal, and in the United Kingdom a property cannot be marketed without an Energy Performance Certificate, so the rating belongs in the payload rather than a note. Every portal answers back, and those answers are where rejected listings hide.

The four things that hurt, and what we do about each

1. The feed goes stale and the first person to notice is the licensor

A status change lands in the multiple listing service at nine in the morning. Your site carries the property as available until the nightly job runs, and if that job failed quietly, for a day after that. One stale record on a public search page is a display rule breach, and the remedy written into most feed licences is suspension rather than a warning. Reinstatement then runs on the board's timetable, not yours, while your listing site cannot show listings. On the builds Digital Heroes has priced, rebuilding a feed integration properly after it has been switched off runs 8,000 to 20,000 dollars, and not one dollar of that adds a feature.

It happens because the feed was treated as a content source instead of a system of record. Someone wired a nightly full-file pull, mapped the twenty fields the design needed, and shipped. There is no delta sync on the modification timestamp, no reconciliation pass comparing record counts against the source, no dead letter queue for rows that fail to parse, and no alarm on the age of the last successful sync. And the licence terms live in a PDF in somebody's mailbox rather than in the code.

Digital Heroes reads the licence at specification stage and turns each clause into a field, a rule or a test. Canonical field names come from the RESO Data Dictionary, so a second board is a mapping exercise instead of a rebuild. Sync is incremental on the modification timestamp with a scheduled full reconciliation behind it. A status transition table defines what each status may display and for how long. Alerts fire on sync age and record count drift before a human notices. Internet Data Exchange and Virtual Office Website records travel down separate display paths that a future template change cannot merge by accident.

2. The commission run takes days and still gets disputed

Month end arrives. Someone exports closings, opens the split spreadsheet, applies caps by hand, remembers that one agent moved tier in March, and produces statements. Two agents query their numbers, both are partly right, and reconciliation eats days. In our own projects, a brokerage of fifty to eighty agents has typically been losing three to five working days a month to this before the software replaces it. The larger cost is the trust that leaks each time an agent is told the spreadsheet was wrong.

The mechanism is a data model chosen in week two of the original build. Someone put a commission percentage on the agent record. A percentage cannot express a cap that resets on a hire anniversary, a referral fee taken before the split rather than after, a team lead override, or the order in which a brokerage transaction fee and a franchise fee are applied. Every case the field cannot express becomes a manual adjustment, and manual adjustments carry no history.

Digital Heroes models commissions as a ledger, not a field. Every transaction produces postings in integer minor units, never floating point, so nothing drifts by a cent across a year. Each posting carries the identifier of the rule that created it and its place in the order of operations, so a statement can be explained line by line to the agent querying it. The rounding rule is written into the requirements document and signed before the first posting is coded. Disbursement authorisations are generated from the ledger rather than typed, and year-end 1099-NEC totals come from the same postings, which is the reason they agree.

3. Every portal wants a different payload, and the rejections go to a mailbox nobody reads

Your agent publishes a listing. It appears on your site instantly, on one portal that evening, and never on the third, because a photo sat under the minimum width. The rejection notice went to an address created during onboarding two years ago. You find out when the vendor asks why their property is not where they can see it.

Structurally this is syndication built as one-off exports bolted to the publish button. Each portal's schema lives inside its own export routine, so when one portal adds a required field a developer edits code in three places and tests in none. Nothing ingests the responses, and a write-only integration has no idea whether it worked.

Digital Heroes keeps one canonical listing record and treats every portal as a transform over it. The field map per portal is data, editable without a deployment. Payloads are validated before they leave, so an undersized photo fails on your screen while the agent is still looking at it instead of silently at midnight. Rejections and acknowledgements are shown against the listing in the same interface the agent published from, and retries carry backoff. A Rightmove BLM feed, a portal JSON payload and a RESO extract become three transforms over one record rather than three copies of your database drifting apart.

4. Leads sit unclaimed while everyone assumes somebody else has them

An enquiry arrives at 8:41 in the evening from a portal. It lands in a shared inbox. The rule about who covers that postcode after hours lives in a conversation from last year. At nine the next morning three agents look at it, one calls, the vendor has already spoken to someone else, and nobody can say how long the lead sat there because ownership was never timestamped. Speed to lead is the number every principal agrees matters and almost nobody instruments.

The cause is routing implemented as an email forwarding rule. Forwarding has no concept of ownership, acceptance, a timer, an escalation, or an audit of who was offered a lead and let it lapse. It also drops the consent record, so the compliant way to text that enquirer back is unclear and the safe assumption becomes doing nothing.

Digital Heroes builds routing as a rules engine, with territory drawn as polygons rather than a list of postcodes typed by hand, plus price band, source and agent working hours. A lead is offered, accepted or escalated on a timer measured in minutes. Ownership is a record with a full audit trail, so who held it and when has an answer. Consent, timestamp and source are captured at the form and stored on the lead itself. A2P 10DLC registration for the texting number is handled during the build, because carrier registration is a queue and launch week is the wrong time to join it.

Build or buy, honestly

If you run one office, on one board, with standard splits and no product ambitions, buy the off-the-shelf brokerage platform and spend the money on people instead. You will hear that on the call rather than after the deposit.

Building earns its cost in three situations: you work across boards whose licence terms conflict and the platform assumes one, your split structure is something the platform cannot express so operations already keeps the real numbers elsewhere, or you sell software to other agencies, where the product is the business and renting it is not an option.

What it costs, worked through

On the builds Digital Heroes has priced for real estate and proptech companies, the bands run like this. They assume senior engineers, a signed specification and a production launch, not a prototype.

• Listing site with one feed integration: 12,000 to 30,000 dollars. One board, search, detail pages, enquiry capture, display rules enforced in code.
• Agent and lead platform: 30,000 to 70,000 dollars. Territory routing, ownership and escalation, consent capture, and a sync with the customer relationship management tool you already pay for.
• Commission and transaction ledger: 45,000 to 90,000 dollars. Split rules, caps, referrals, disbursement authorisations, month-end close and year-end totals.
• Multi-tenant proptech product: 60,000 to 160,000 dollars. Tenancy model, billing, roles, a public application programming interface, and the tooling you will want by customer twelve.
• Full brokerage platform: 100,000 to 250,000 dollars and upward. Listings, leads, commissions, documents and syndication under one data model.
• Retained team, monthly: 9,000 to 28,000 dollars. Senior capacity on a continuing roadmap.

Here is a build of that shape, costed the way Digital Heroes quotes it: a scenario priced from our own project history rather than a named client engagement. The arithmetic is the part worth having.

A residential brokerage with 60 agents in one metropolitan area. Two multiple listing service boards with different licence terms. Around 900 active listings and six years of closed transactions in a back office system nobody wants to keep. Three portals. Five integrations: e-signature, accounting, the existing customer relationship management tool, a texting provider and a document store.

• Specification, data model and signed requirements: 9,000 dollars
• RESO Web API integration for two boards, with display rules: 22,000 dollars
• Listing site and search: 18,000 dollars
• Syndication service for three portals, with rejection handling: 14,000 dollars
• Lead capture, territory routing and customer relationship management sync: 16,000 dollars
• Commission ledger, disbursement authorisations and month-end close: 28,000 dollars
• E-signature and document retention: 11,000 dollars
• Migration of listings, documents and six years of transactions: 18,000 dollars
• Testing, launch and two weeks of hypercare: 8,000 dollars

That totals 144,000 dollars. In our own projects a build of this shape runs about 22 weeks, with the feed and the ledger starting in parallel because everything else waits on them.

Two costs go missing from most quotes. In our own projects, migrating listings, documents and historic transactions runs 10 to 25 percent of the build, at the top of that range when the source system has no export beyond CSV. On our engagements, year two runs 15 to 20 percent of the build annually, roughly 22,000 to 29,000 dollars on the platform above: portal schema changes, board licence updates, new split rules as you recruit. An agency that quotes the build and goes quiet about year two has priced half the job.

How the work runs

Specification first, and nothing is coded before it is signed. On our engagements this stage runs two to three weeks for a platform of that size, and it produces the data model, the status transition table, the split rules with their order of operations, the retention schedule per document type, the portal field maps, and the acceptance tests that decide when a phase is done. Your operations lead reads it, because they will catch the case nobody else remembered.

Build runs in phases you can see. Each phase ends in something usable rather than a demonstration: the feed syncing before the search page is designed, the ledger balancing before statements are formatted.

Launch is planned around your calendar. Migration runs twice, first as a rehearsal reconciled against your existing back office to the cent, then for real, with the old feed path warm through cutover.

Then the same engineers stay on it, which is what matters when a board revises its licence terms. In our own projects the first ninety days after launch carry more change requests than any quarter that follows, and pretending otherwise is how agencies end up quoting a build and vanishing before it settles.

What we have already shipped in real estate

Property and listing work Digital Heroes has delivered includes The Berman, NLV Listings, New Leaf Vision and a property listings platform in the United Kingdom.

The reason to name them is not the logos. It is that the positions above, on canonical records, on ledgers instead of percentage fields, on reading the licence before writing the sync, are held because they had to be held in production. The question worth asking any agency here is not how many clients it has. It is whether anyone there has ever had to explain a stale listing to a licensor.

What to ask any agency before you sign

• Which RESO version does your integration target, and what happens when I add a second board? An answer that treats each board as a fresh integration tells you the field mapping is hard-coded.
• Where does the rounding go on a split, and who signs that rule off? If the framework handles it, the ledger is floating point and it will drift.
• Show me what happens when a portal rejects a listing. A description of an email alert, or silence, means the integration is write-only.
• What is the retention policy per document type? We keep everything is not a policy, and it becomes a problem the day you must produce one file and not the rest.
• Who fixes this in month seven, and what does that cost? A number that only appears after the build is quoted decides whether you own this system or rent access to it.

Who we are wrong for

A brochure site for a single agency under five thousand dollars belongs on a hosted builder. You will get a better result in a week for a tenth of the money.

A board that requires engineers sitting in a United States office should look elsewhere. Digital Heroes contracts through a US LLC and a UK LTD, and delivery is from India. It is stated plainly because discovering it in week three is worse for both of us.

A team that wants hands working under its own architects should hire contractors. Digital Heroes owns the architecture it ships, and that is not traded away, because the architecture is why the ledger balances.

And a project that has to start on Monday without a written specification is not one we take. In this industry the unwritten rule is always the expensive one: the cap that resets on the hire anniversary, the board that forbids caching sold data, the document that must survive a retention schedule you did not write. Those are found in specification or in litigation.

Book a 30-minute call with Digital Heroes and get a written plan and a fixed quote within 48 hours.