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Granny flat builder software: designs, prices & approvals

Granny flat builders: pick a design, see the price, book a site visit. Build more, quote less.

Brochures emailed as PDFs, prices that change once someone sees the slope, approvals stuck in an inbox and buyers ringing to ask when the slab's going down. We build granny flat systems that let buyers choose a design online, check their block early and follow the build all the way to handover. Then we host them and look after them.

Looking for granny flat builder software or an online design and price tool?

Granny flat buyers want to see designs and real prices fast. They're weighing up rent from a tenant, a place for Mum or a teenager who won't leave home. Builders need to know about the block before committing to a number. Slope, side access, sewer depth, easements and overlays can turn a tidy base price into an awkward phone call. Most builders end up juggling a PDF brochure, a pricing spreadsheet, an approvals folder and a group chat with the trades.

Wollopit builds custom granny flat software around how your business actually runs. Buyers pick a design and options on your website and see the price update as they go. The block gets checked before anyone jumps in the ute. Approvals are tracked with reminders. Once the build starts buyers follow every stage in a portal while claims flow to Xero or MYOB. We connect the tools you already like and look after the lot on our own servers.

01The problems

What we hear from granny flat builders

Does your granny flat building business have these problems? Here's how we'd fix them.

Most granny flat builders we talk to build a great product and run the sales and approvals side on spreadsheets, email and memory. It holds up fine until three jobs hit council at once.

  • The problemBrochures and guessesBuyers download a PDF of floor plans then wait days for a price that changes anyway.
    How we fix itAn online design selector with floor plans, base prices and what's included, right on your website.
  • The problemOptions priced by handSecond bathroom, covered deck, raked ceiling, upgraded kitchen. Someone tallies it in a spreadsheet and misses a line.
    How we fix itAn options builder that updates the price live as buyers pick upgrades, using your own pricing rules.
  • The problemSite surprises blow out quotesSlope, rock, tight side access, deep sewer and a meter box upgrade all turn up on the site visit.
    How we fix itBlock questions and photo uploads before the visit, with site costs flagged before the price is promised.
  • The problemWasted site visitsAn hour's drive to a block that won't fit a granny flat because of an easement or the pool.
    How we fix itAddress lookup, block size, setbacks and overlays checked up front so you only visit blocks that work.
  • The problemApprovals stallCouncil or private certifier steps get lost. Nobody chased the engineer and the soil test is still pending.
    How we fix itApproval tracking for every job with documents, consultants, due dates and automatic reminders.
  • The problemQuote to contract dragsThe quote gets revised four times, then contracts are printed, signed, scanned and emailed back.
    How we fix itQuotes that turn into contracts with e-signing and the deposit paid online in one step.
  • The problemBuyers ringing for updatesWhere's my slab? When's frame? Every call pulls the supervisor off the tools.
    How we fix itA client portal with stage updates, site photos and the next milestone, so buyers stop guessing.
  • The problemProgress claims go out lateFrame was finished last week but the office only heard about it today.
    How we fix itClaims raised when the supervisor ticks off a stage, sent straight to Xero or MYOB.
  • The problemTrades booked by textPlumbers, sparkies and the slab crew are lined up by SMS. One no-show pushes the job back a week.
    How we fix itA build schedule trades see on their phones, with SMS confirmations and dates that shuffle when one moves.
  • The problemFinance questionsBuyers ask about rental returns, repayments and whether the bank will lend before they commit.
    How we fix itRental return and repayment calculators built into the design tool, with clear disclaimers.
  • The problemLeads go coldEnquiries from the website, Facebook and the display home land in three different inboxes.
    How we fix itOne lead pipeline with follow-up reminders so no enquiry sits unanswered.
  • The problemHandover and warranty chaosDefects, appliance manuals and warranty calls after handover get buried in email.
    How we fix itHandover packs and a defects and warranty log in the same portal the buyer already uses.
02What we build

Solutions

What we build for granny flat builders. Usually all talking to each other.

Pick the one that's hurting most or join the whole lot up. Everything is built around how your team works, not the other way round.

01

Design selector

Floor plans, 3D renders and inclusions for every design with base prices buyers can filter by bedrooms and size.

02

Options & upgrades builder

Decks, ceilings, kitchens, bathrooms and finishes priced live from your own rules.

03

Saved & shared designs

Buyers save their design and options, then share a link with family or their broker.

04

Block suitability check

Address lookup, block size, slope, access and services questions with photo uploads.

05

Site visit app

Measure, photograph and note site costs on your phone, feeding straight into the quote.

06

Quotes & contracts

Quotes built from the chosen design and site costs, with e-signing and online deposits.

07

Approvals tracker

Council or private certifier steps, consultants, documents and due dates for every job.

08

Build schedule & trades

Stages, trades and dates on one calendar with SMS confirmations and knock-on changes.

09

Client build portal

Stage updates, site photos, documents and the next milestone for every buyer.

10

Progress claims

Stage claims raised from site and synced to Xero or MYOB, with overdue reminders.

11

Rental & finance calculators

Rental return and repayment estimates built into the design and price tool.

12

Lead pipeline

Website, Facebook and display home enquiries in one place with follow-ups.

13

Handover & warranty

Handover packs, manuals, defects lists and warranty requests logged and tracked.

14

A website that sells flats

Hand-built, quick on mobile, with live designs and prices, built to rank for 'granny flat builders near me'.

03The systems

The big ones

Your whole granny flat business, on one system.

These are the systems granny flat builders ask us about most. Each one works on its own. They get properly clever when they're joined up.

Design & price

Pick a design. Watch the price add up.

Buyers browse your designs on your website, pick their options and see the price update as they go. No more emailing PDFs and waiting days to send a number. Saved designs land in your pipeline ready for a site visit.

  • Floor plans and renders per design
  • Filter by bedrooms, bathrooms and size
  • Base price and inclusions shown clearly
  • Options priced live from your rules
  • Packages like rental ready or family ready
  • Save and share a design by link
  • Rental return and repayment calculators
  • Book a site visit from the design
  • Your team updates prices without a developer

Block checks

Know the block before you jump in the ute.

Buyers answer a few smart questions about their block and upload photos of the backyard, side access and meter box. You see the likely site costs and red flags before the visit. Only the blocks that work get a drive.

  • Address lookup with Google Maps
  • Block size and frontage questions
  • Slope, rock and fill prompts
  • Side access width for machinery
  • Sewer, stormwater and power questions
  • Photo uploads from the buyer's phone
  • Easement and overlay flags
  • Site cost allowances added to the quote
  • Site visit booking with reminders

Approvals tracking

Approvals that don't sit in someone's inbox.

Every job shows where it's up to with council or the private certifier. Surveys, soil tests, engineering, energy reports and drawings are tracked with due dates. Reminders chase the consultant before the job stalls.

  • Approval stages per job
  • Council or private certifier pathways
  • Surveyor, engineer and soil test tracking
  • Documents stored against each job
  • Due dates and automatic reminders
  • Information requests logged and answered
  • Buyers see approval progress in the portal
  • Board view of every job in approvals

Build portal & claims

Buyers see the build. The office sees the claims.

When the supervisor ticks off a stage the buyer gets an update with photos and the office gets a progress claim ready to send. Trades see their dates on their phones. Everyone knows what's next without a phone call.

  • Stage updates with site photos
  • Next milestone shown to the buyer
  • Contracts, plans and variations in one place
  • Variations signed online
  • Progress claims from ticked stages
  • Claims synced to Xero or MYOB
  • Trade schedule with SMS confirmations
  • Defects and warranty requests after handover

Leads & sales

Every enquiry followed up. Every quote chased.

Website designs, Facebook enquiries and display home walk-ins all land in one pipeline. You see who saved a design, who's waiting on a site visit and which quotes need a nudge.

  • One pipeline for every enquiry source
  • Saved designs attached to each lead
  • Follow-up reminders by email and SMS
  • Quote versions tracked side by side
  • Display home visit bookings
  • Won and lost reasons recorded
  • Which designs and options sell best
04How it changes

Before and after

A backyard investment, wolloped.

Here's how a buyer's first few weeks could change. Every granny flat business is different, so we map yours first.

Before

  1. Brochure emailed as a PDF
  2. Price added up in a spreadsheet days later
  3. Slope and tight access found on site
  4. Quote revised and contract scanned back
  5. Approval forgotten in someone's inbox
  6. Buyer ringing for updates every week

After

  1. Design and options picked online
  2. Price updated live and saved to share
  3. Slope and access flagged before the visit
  4. Quote signed and deposit paid online
  5. Approval tracked with reminders
  6. Updates and photos in the buyer's portal
05Services

Everything under one roof

Software, websites and systems for granny flat builders.

Whether you're starting fresh or upgrading what you've got, it's one team from the first sketch to the support call.

Custom software for granny flat builders

Built around how your granny flat building business actually runs: design selector, options & upgrades builder and the admin in between, in one system you own.

Websites for granny flat builders

Fast, hand-built websites that rank for the searches your customers make and turn visits into enquiries, bookings or orders.

Granny flat building business system upgrades

Running on spreadsheets, old software or a platform you've outgrown? We move your data across and upgrade in stages so the business never stops.

Apps and portals for granny flat builders

Saved & shared designs and block suitability check: customer and staff portals that work on any phone without an app store.

Integrations and automation

We connect Xero, MYOB and Buildxact so information moves on its own and nobody retypes it.

Hosting, support and care

Managed hosting, updates, backups and security for your granny flat building business, looked after by the people who built it.

06Integrations

Connections

Plays nicely with what you already use.

We connect to the tools you rely on, work alongside building platforms you're happy with or replace the ones holding you back.

  • Xero
  • MYOB
  • Buildxact
  • Databuild
  • Procore
  • HubSpot
  • Pipedrive
  • Google Maps
  • Nearmap
  • DocuSign
  • Stripe
  • Microsoft 365
  • Google Workspace
  • Dropbox
  • Deputy
  • Twilio SMS
  • Facebook
  • Google Business Profile
07How we work

The process

Some people dip their toe in. We turn up in a rebreather.

We get properly below the surface of your granny flat building business: the systems, the busy days and the jobs everyone hates. Then we fix the bits that matter most first.

  1. 01

    Think

    We sit with your sales team, ride along on a site visit and follow a job through approvals to see what's actually slowing you down.

  2. 02

    Archi-tech

    We plan it before writing code: your designs, options pricing, block checks, approvals, build stages, claims, hosting and cost.

  3. 03

    Build

    Real engineering, shown to you early and often. Usually the design and price tool first, so you get a win before the next run of enquiries.

  4. 04

    Look after

    We host it, maintain it and keep improving it. When something breaks you call the people who built it.

08Questions

FAQ

Things granny flat builders ask us.

Something else on your mind? Ring 0423 011 252 and ask the people who'd build it.

Can buyers save and share designs?

Yes. Buyers save their design and options, then share them with family or their bank before booking a site visit.

Can the price tool use our real pricing?

Yes. It runs on your base prices, options and rules. Your team can update prices and inclusions without calling a developer.

Can it tell us if a block will work?

It flags the likely issues early, like slope, access, services and overlays, so you visit the right blocks. It doesn't replace your site visit or your certifier.

Can buyers see their build progress?

Yes. Each buyer gets a portal with stage updates, site photos, documents and the next milestone, so the supervisor stays on the tools.

We already use Buildxact. Do we have to switch?

No. If Buildxact, Databuild or another platform is doing its job, we build around it. If it's holding you back, we'll show you what replacing it would involve before anything changes.

How much does a granny flat system cost?

It depends on what you need, so we quote up front once we understand it. No surprise invoices, no lock-in and you own what we build.

How long does it take?

Smaller jobs like a design and price tool can be quick. Bigger systems are planned in stages so you get the first win early instead of waiting for everything at once.

Who looks after it once it's built?

We do. We host it on our own managed servers and keep it updated and secure. When you need something you ring the people who built it.

We already have systems. Can you upgrade them instead of starting again?

Usually, yes. Most granny flat builders we work with keep what's working and upgrade the rest in stages. We move your data across, connect the old and new while we switch and retire the old system only when the new one is proven.

Contact

Got a granny flat building business problem? Consider it wolloped.

Tell us what's slow, broken, manual or missing. You don't need a spec, just describe what's going on.

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