Specialist & Non-Standard Features

Specialist and non-standard features are the bespoke items some homes and buildings contain that do not fit any other element: wine cellars, home cinemas, indoor pools and spas, saunas and steam rooms, home lifts, safe rooms, recording studios, large aquariums, smart home systems, heritage and artistic features, and similar. In the Moyne Ross framework this element is a capture-only holding pen: items are recorded so they are counted in a building's capital picture, but they are kept out of cohort comparisons, because averaging a wine cellar or an aquarium across buildings would distort the benchmarks for everything else.

Recording them consistently, even when rare, keeps nothing out of the building's capital story.

What shortens life:

• Moisture escaping into the building fabric.
• Specialist suppliers leaving the market.
• Lack of documentation, so new owners cannot maintain features.

The life of specialist features is less predictable than ordinary elements because it depends on bespoke products, specialist suppliers and the care of each owner. Many are removed rather than replaced when they reach the end of their life, particularly when new owners do not value them.

Smart systems often age fastest.

Moisture damage to the building

The most serious risk from many specialist features is to the rest of the building: indoor pools, spas, saunas, steam rooms and cellars generate moisture that, without vapour control and ventilation, condenses in walls and roofs, rotting timber, corroding steel and growing mould.

Structural load

Pools, spas, aquariums and heavy equipment add large loads that the floor may not have been designed for.

Electrical and fire hazards

Water near electrical equipment, sauna heaters near combustible linings, and high electrical loads in cinemas and studios create shock and fire risks.

Specialist obsolescence

Bespoke systems depend on specialist suppliers and integrators; when they disappear, features cannot be repaired.

Lost knowledge

Features installed by previous owners often come without manuals or records, leaving new owners unable to maintain them safely.

Chemical and air quality

Indoor pool chemicals and their by-products corrode metalwork, fixings and ventilation equipment and affect air quality throughout the house if the pool hall is not separated and ventilated.

Insurance and valuation

Some features increase insurance risk or limit insurer appetite, and their effect on value varies widely: features that one buyer values, another sees as a liability.

Occupant safety

Saunas, steam rooms and pools carry burns, slips and drowning risks; safe rooms and lifts can trap occupants without communication.

Each feature also adds maintenance burden that few owners plan for.

On site

• Condensation, mould or corrosion around pools, spas, saunas and cellars.
• Sagging or cracked floors under heavy features.
• Electrical equipment near water.
• Proprietary control panels without documentation.
• Unusual features with no records.

In the records

• Approvals and engineering for features.
• Manuals and supplier details.
• Service records.

• Corrosion of fixings, light fittings and ventilation around pools.
• Steam or chemical odour in other parts of the house.
• Feature controls that no one in the household knows how to operate.
• Removed features with services capped and left behind.

• Dehumidifiers running constantly near the feature.

• Rust staining or efflorescence on walls next to pools and saunas.

Ask first whether the feature is damaging the rest of the building; that usually matters more than the feature's own condition.

A feature's age is less telling than its surroundings.

Findings are graded by what they demand: safety (can hurt someone now), failure (failed and damaging the building), condition (distress present and progressing), lifecycle (renewal due on age and exposure), deadline (a regulator or ordinance sets the date), check (investigate before sizing works) and nil (cosmetic or stable).

Because these features are excluded from cohort averages, their grading matters for the individual building only; the moisture, load and electrical risks they create for the building are graded the same way as any other finding.

A building surveyor records and assesses each feature, bringing in specialists for pools, electrical safety, structure and building physics as needed.

• Inventory of every specialist feature with type, age, supplier, approvals and documentation.
• Building fabric check around moisture-producing features: humidity logging, moisture readings, thermal imaging and inspection of roof spaces and walls.
• Structural check of floors carrying heavy features.
• Electrical safety test of wet-area and high-load installations.
• Supplier and support check for bespoke systems.

The report should record each feature for the capital picture, state any risks it poses to the building, and recommend keep, repair, replace or remove.

Capture-only recording does not mean light assessment: the risks to the building still need checking.

Owners' knowledge of operation should be recorded too.

• Moisture control: dehumidification, ventilation and vapour barriers for pools, saunas, steam rooms and cellars.
• Structural strengthening or load reduction under heavy features.
• Electrical rectification with RCD protection and separation from water.
• Documentation: compile manuals, supplier details and maintenance requirements.
• Platform replacement for unsupported smart home systems with open alternatives.
• Removal of features that cost more to keep than they are worth.

• Separation of pool halls and steam rooms from the rest of the building with sealed doors and their own ventilation.
• Safety measures: barriers, alarms, emergency stops and communication where people could be trapped or injured.
• Decommissioning with services made safe and fabric repaired.

• Monitoring: humidity and leak sensors around moisture-producing features so damage is caught early.

Costs vary widely and are bespoke: specialist servicing recurs, moisture control and strengthening are lump sums, and removal is a lump sum with making good. These items are recorded in the building's capital picture but excluded from cohort averages.

Safety items are immediate; replacement is lifecycle; building damage repairs are condition items.

Removal often costs less than continued repair and may add value.

Specialist servicing often requires the original supplier.

• Australia. Building approval is needed for many features; pools and spas follow AS 1926 for barriers and state registration; electrical work follows AS/NZS 3000, including wet area zones.
• United Kingdom. Building regulations apply to structural, electrical and ventilation aspects; BS 7671 governs electrical installations in pools and saunas.
• United States. Local building and electrical codes apply, with NFPA 70 covering pools, spas and saunas; pool barriers follow the International Swimming Pool and Spa Code.

In all three countries, many specialist features need building approval, and features installed without it can affect insurance, sale and certification. Pools and spas carry barrier and safety rules regardless of how they are classified in the capital picture, and electrical work in wet areas is tightly regulated. Heritage features may be protected by listing.

• Approvals and engineering for each feature.
• Manuals and supplier contacts.
• Service records.
• Electrical certificates.
• Records of moisture problems.

• Insurance terms affected by the feature.
• Heritage listing where relevant.
• Records of moisture or corrosion damage around the feature.
• Decommissioning records for removed features.

• Operating instructions held by the owner.