Builder rank #4
Symmetric
Lowest headline price, but the highest source-document mismatch and variation risk. It should not be relied upon without a revised fixed-price response to the source library.
Quote snapshot
Risk-adjusted view, not just headline price.
Price
$582,998
Cost/m²
$2,741
PC/PS
Unclear
Confidence
Low-Medium
Likely finished band
$680,000–$780,000
Assessment
Strengths, risks and next actions based on the source document library.
Strengths
- Lowest quoted price.
- Pergola and additional timber carport appear included.
- Storage shed, metal roof, sarking, concrete paving, rainwater tank and stormwater/pit installation are noted.
Risks
- Quote refers to minimum 6-star energy rating / energy upgrades as risk.
- Detention pit/kerb connection and traffic management/council requirements are caveated.
- Tree removal and underground power pit are excluded/caveated.
- Retaining walls/sleepers, rock and bore piers are excluded/caveated.
- Broad escalation wording and unclear PC/PS schedule reduce reliability.
Actions
- Request revised quote against the source library.
- Confirm 7-star/NCC 2022 and livable housing compliance.
- Ask for complete PC/PS schedule.
- Clarify drainage/detention, traffic management, power pit, tree and retaining obligations.
- Remove or tightly limit escalation wording.
Exclusions and owner-cost risks
| Item | Status | Realistic estimate | Risk |
|---|---|---|---|
| 7-star/NCC 2022 compliance gap Must be repriced against current mandatory requirements. | Variation Risk | $30,000 | High |
PC / PS items
| Item | Type | Amount | Risk |
|---|---|---|---|
| No PC/PS items recorded yet. | |||
Quote-vs-source requirements for Symmetric
Shows status against each core source-library requirement.
| Requirement | Status | Quote item to check | Risk |
|---|---|---|---|
| 212.7m2 dwelling Working drawings and quotes reference the same 212.7m2 total building area. | Included | Dwelling size and base build scope | Low |
| 33.5m2 carport Working/source drawings include a proposed 33.5m2 carport. | Included | Carport structure, roof, posts, slab/base and drainage | High for Aspire |
| Pergola / alfresco Working drawings include pergola/alfresco area. | Included | Pergola roof/framing/slab/lighting/finishes | Medium |
| Landscaping before occupation Planning/source library flags landscaping/external works as occupation/compliance issue. | Unclear / likely not adequate | Landscaping, lawns, garden beds, planting, watering, external completion | High |
| TPMP / arborist / tree protection TPMP requires project arborist, fencing, ground protection, inspections, supervision and final certification. | Unclear / Excluded | Tree protection fencing, project arborist, inspections, ground protection, tree-sensitive excavation | High |
| Drainage / OSD / WSUD / LPOD Approved drainage plans require OSD/orifice pit, pipe storage, pits, charged rainwater tank downpipes, raingardens, permits and final inspection. | Variation Risk | Tank, pits, pipework, OSD, orifice, rain gardens, LPD connection and council tapping/new pit risk | High |
| SDA / 7-star / NCC 2022 SDA/energy documents require 7-star/NatHERS, whole-of-home energy, heat pump systems, WELS fixtures, LED lighting and completion report. | Variation Risk | 7-star energy, whole-of-home, appliances, glazing, WELS, lighting, SDA certification | High |
| Double glazing / glazing spec SDA and energy pathway require double glazing; final drawings/energy schedule may require specific glazing performance. | Variation Risk | Double glazing, Low-E, thermally broken frames, window seals | High |
| KCE structural design Structural drawings/compliance certificate exist and must be priced. | Unclear | Slab, footings, steel/LVL beams, bracing, posts, retaining, carport structural items | Medium-High |
| Retaining Retaining must suit site levels and structural/civil requirements. | Excluded / Unclear | Retaining wall length, height, footing, drainage and boundary conditions | Medium-High |
| Driveway / crossover / reinstatement External access must be all-weather, drained and completed to council requirements. | Variation Risk | Driveway, crossover, footpath/kerb reinstatement, asset protection | High |
| Sewer / service proving and diversion Asset/service locations must be proven by hand; diversion/branch/depth and existing dwelling services need fixed-price clarification. | Unclear | Sewer diversion, branch alteration, depth >1.5m, existing dwelling continuity | High |
| Electricity pit / meter / services New/changed service connections on subdivided block must be clarified. | By Owner / Variation Risk | Electricity pit, group metering, mains switchboard, NBN, water meters, activation fees | Medium-High |
| Livable housing Livable housing requirements include step-free access, door/corridor clearances, sanitary circulation, hobless shower and reinforcement. | Unclear | NCC livable housing compliance | Medium |