Public Amenities

Public amenities are the shared toilets, accessible toilets, showers, change rooms, end-of-trip facilities, parents' rooms and tea points in commercial, institutional and mixed-use buildings. They are among the most heavily used and most judged spaces in a building: tenants rate buildings on their amenities, codes set how many fixtures are needed for the occupancy, and failures (leaks, odour, broken fixtures, shortages) are noticed immediately. Functionally they must provide enough fixtures for the people in the building, stay hygienic, be accessible, and not leak into the floors below.

What shortens fitness for purpose:

• Higher occupancy densities than the amenities were designed for.
• Rising market expectations for end-of-trip and quality.
• Water leaks through membranes and around fixtures.
• Vandalism and heavy use in public buildings.

Amenities are among the first spaces tenants judge, and their refurbishment is often brought forward for leasing reasons even when fixtures still work.

Leaks to floors below

Amenities leak through failed floor membranes, around floor wastes, at wall junctions, from cisterns, flush valves and pipework in ducts, and from overflowing urinals and blocked drains. Leaks show on ceilings of the floor below and damage tenancies.

Too few fixtures

Codes set fixture numbers by occupancy. When floors are densified, queues and complaints follow, and the building no longer meets the occupancy it is let for. End-of-trip facilities sized for a few cyclists are overwhelmed as commuting changes.

Odour

Odours come from failed exhaust, dry floor waste traps in little-used rooms, blocked or scaled urinals, sealant and grout harbouring bacteria, and leaks soaking substrates.

Little-used showers and outlets

Showers in end-of-trip facilities and accessible bathrooms that are rarely used become dead legs where Legionella can grow, then aerosolise when used.

Accessible facilities unavailable

Accessible toilets used as storerooms, locked with keys staff cannot find, or with layouts and fittings that do not meet requirements leave people with disability without facilities.

Wear and damage

Partitions swell and corrode, hardware breaks, tiles crack, grout discolours, and accessories go missing.

Drainage blockages

Toilets and urinals block from paper, wipes and scale, overflowing onto floors and into the floor below. Recurrent blockages in one block often point to a defect in the stack or branch rather than misuse.

In shared buildings, amenities on one floor often serve several tenants, so a single failure affects many people.

On site

• Ceiling stains below amenities on the floor beneath.
• Odour on entry; dry floor wastes; scaled urinals.
• Queues at peak; complaints about numbers.
• Swollen or corroded partitions; broken locks.
• Accessible toilets cluttered or locked.
• End-of-trip bike racks and lockers full; showers queued.
• Cracked tiles and failed grout around wastes.

In the records

• Leak and plumbing call-out history.
• Occupancy figures against fixture numbers.
• Cleaning and hygiene complaints.
• Legionella management for showers.
• Refurbishment history.

• Water marks around WC pans and at floor wastes, showing leaks or overflows.
• Tenant or visitor complaints about cleanliness and odour.

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).

A building surveyor with a hydraulic engineer and access consultant.

• Leak investigation: flood tests, dye tests and duct inspections.
• Fixture count against code ratios for current and planned occupancy.
• End-of-trip review against demand and market expectations.
• Ventilation check.
• Legionella review of little-used outlets.
• Access audit of accessible facilities.
• Condition survey of fixtures, partitions and finishes.

The report should give leak causes, capacity against occupancy, safety items and a refurbishment plan.

A building surveyor leads, with a hydraulic engineer for leaks and drainage, an access consultant, and the cleaning contractor for hygiene issues.

• Leak investigation: flood tests of floors, dye tests of fixtures and wastes, and inspection of service ducts for leaking cisterns, valves and joints.
• Fixture count against the code ratios for current and planned occupancy, floor by floor, including accessible and ambulant facilities.
• End-of-trip review: bike spaces, lockers, showers and drying against current use and market expectations.
• Ventilation check of exhaust rates to every room.
• Legionella review of little-used showers and outlets, with temperature checks and flushing records.
• Access audit of accessible toilets and showers.
• Condition survey of fixtures, tapware, partitions, finishes and accessories.

The report should give the cause of each leak, capacity against occupancy, safety items, and a staged refurbishment plan.

• Leak repair: re-membrane, repair wastes and joints, fix pipes in ducts.
• Capacity: add fixtures or end-of-trip facilities, often within a refurbishment.
• Odour control: trap primers, exhaust repair, urinal maintenance.
• Flushing regimes for little-used showers.
• Accessible facilities cleared, upgraded and kept available.
• Refurbishment with durable, water-efficient fixtures.

• Leak repair: re-membrane floors with correct falls and waste flanges, repair joints and replace cisterns and valves in ducts.
• Capacity increases: add fixtures or convert space, often as part of a whole-floor or core refurbishment.
• End-of-trip expansion: more bike spaces, lockers and showers to match demand.
• Odour control: trap primers or water-based seals for dry wastes, exhaust repairs, urinal maintenance regimes.
• Flushing regimes for little-used showers and outlets, with records.
• Accessible facilities cleared, upgraded to current layouts and kept available.
• Refurbishment with durable, water-efficient fixtures and moisture-resistant partitions.

Amenities are refurbished as lump sums per block or per floor, including membranes, finishes, fixtures and partitions, with out-of-hours work. Leak repairs are itemised. End-of-trip facilities are lump sums. Refurbishment is lifecycle; capacity upgrades for occupancy can be code compliance; leaks are failures.

Leaks often cost more in damage to the floor below than in the repair itself, so early repair is economical. Refurbishments are usually carried out floor by floor while other floors' amenities remain available.

• Australia. The National Construction Code sets sanitary facility numbers by building class and occupancy, and accessible facilities under AS 1428.1; wet areas follow the code's waterproofing provisions.
• United Kingdom. BS 6465 sets the scale of sanitary provision; Approved Documents G and M apply; the Workplace Regulations 1992 require suitable facilities.
• United States. The International Plumbing Code sets minimum fixture counts by occupancy; the 2010 ADA Standards set accessible facilities.

Lease terms in all three countries often promise amenities to a standard or ratio, so shortfalls can be a leasing issue as well as a code one.

In all three countries, workplace health and safety law also requires employers to provide adequate, clean and accessible facilities for workers, independent of building code fixture counts, and health authorities may have additional requirements for shower hygiene and Legionella in public buildings.

• Leak and plumbing call-out history.
• Occupancy figures by floor.
• End-of-trip usage data.
• Legionella management records.
• Access audit.
• Refurbishment history.

• Fixture schedules by floor.
• Cleaning specifications and complaint records.
• Flood test results after previous repairs.
• Lease clauses on amenities and end-of-trip provision.

• Plumbing maintenance contract and response times.