Ofgem heat network registration: a property manager workflow for 26 January 2027

A managed building with communal heating may now sit inside Ofgem's heat network regime. The registration work belongs with the regulated operator and supplier, even if a maintenance contractor looks after the plant. Identify those legal roles, check whether the network is in scope, nominate the organisation's regulatory contact and assemble one evidence-backed data pack for each network. Existing operators and suppliers with deemed authorisation must register relevant heat networks by 26 January 2027.

Ofgem's heat networks overview says regulation applies in Great Britain: England, Scotland and Wales. It began in phases on 27 January 2026. Existing operating networks were automatically authorised to continue, but registration is still required. Northern Ireland is outside this Ofgem framework and has separate metering and billing arrangements.

Separate the registration deadline from the new-entry rule

The 26 January 2027 date is the deadline for operators and suppliers with deemed authorisation to give Ofgem details about their organisations and relevant networks. It is not the date on which the consumer rules first start: the authorisation conditions have applied since 27 January 2026.

Ofgem opened an authorisation application consultationon 5 October 2026. It states that, from 27 January 2027, anyone intending to begin operating or supplying a heat network must apply for authorisation before starting the regulated activity. The consultation closes on 2 November 2026, so its proposed application process should not be treated as final guidance. A property acquisition or new scheme that crosses the January boundary needs a commissioning check, not an assumption that deemed authorisation will cover it.

Step 1: find the networks before deciding who registers

Start with an asset search across the portfolio. Ofgem describes a heat network as a system supplying heating, cooling or hot water from a central source to more than one property in a building or to more than one building. A communal system serving separate flats in one block can be in scope even when nobody calls it a district heating scheme.

Check plant records, service-charge schedules, resident bills, heat-supply agreements and maintenance contracts. Ask whether a central source supplies separate premises, who controls the network assets, who has the customer contract and who receives payment for heat. Record the source of each answer. A spreadsheet label such as “landlord heating” is not enough to settle the regulatory roles.

Ofgem's scope guidance includes district, communal, self-supply, industrial and shared-ground-loop networks, with different obligations in some categories. It also lists examples outside scope, including a single HMO with a shared heating system, certain small conversions with an energy source no greater than 45kWth, and single buildings such as care homes that are not divided into separate premises. Use the full registration guidance for the actual arrangement rather than applying an example by analogy.

Step 2: map the operator and supplier as separate roles

The same organisation may be both operator and supplier, but the two roles have different tests. Ofgem says the operator controls and is responsible for transferring thermal energy through the network. Day-to-day maintenance can be contracted out without transferring the operator role. The supplier is responsible for the contractual and customer-facing supply arrangements, including billing, complaints, communications and consumer-protection outcomes.

Draw a simple responsibility map for each network: asset owner, operator, supplier, freeholder, managing agent, billing agent, maintenance contractor and energy-services company. Then test the operator and supplier definitions against what each party can decide and must deliver. A managing agent may gather data and submit information as an authorised user, but that administrative role does not by itself make the agent the regulated operator or supplier.

Resolve unclear roles before registration. Where more than one entity operates a network, Ofgem's registration guidance covers the nominated-operator requirement. Keep the agreement or decision record that supports the role map, and identify who will handle Ofgem notices after a management contract, freehold or network ownership changes.

Step 3: appoint the regulatory contact and control access

Each regulated operator or supplier must nominate a regulatory contact, normally the most senior member of staff responsible for heat networks. Ofgem's registration preparation guidance says this person creates the organisation account, makes the suitability declaration and can invite other users with appropriate permissions.

The regulatory contact needs an individual work email address and must use the same address for GOV.UK One Login and the heat networks service. Ofgem says not to use a shared mailbox to create the account. A shared address can be added later for legal correspondence. Build an access register showing the regulatory contact, delegated users, their permissions and a leaver process so the organisation does not lose control of the account.

If a property manager or consultant is submitting on behalf of the regulated entity, the entity's regulatory contact must first create the account and invite that third party. Put this dependency in the project plan early; an adviser cannot create the regulated organisation's account independently.

Step 4: assemble a registration pack for every network

Ofgem says the service asks for organisation and network information but does not require supporting documents to be uploaded. That is not a reason to submit unverified answers. Retain the source records and the person who approved each response so corrections and later reporting can be handled without starting again.

The operator normally starts a network registration and invites any separate supplier through the service. A supplier-only organisation needs its own account before the operator can select and invite it. For a portfolio with several legal entities, do not combine them under the managing agent's account merely because one team administers every building.

Step 5: test the consumer workflow behind the form

Registration sits alongside live authorisation conditions. Ofgem's consumer-protection guidance covers standards of conduct, quality of service, billing and transparency, back-billing, heat-supply contracts, protections for consumers in vulnerable situations and security of supply. Suppliers whose role includes domestic supply must also register with the Energy Ombudsman heat network supplier scheme.

Use sample cases to test the operating model: a resident disputes a bill, reports a loss of heat, asks for information in an accessible format or discloses vulnerability. The case should reach the regulated supplier, keep the relevant evidence and meet the applicable response process. An outsourced call centre or billing provider can perform a task, but the role map must still show who owns the regulatory outcome.

Link faults and outages to a controlled work order rather than keeping customer contact and engineering evidence in separate queues. The controlled maintenance workflow sets out a practical approval and completion trail for repairs.

Step 6: turn registration data into a maintained record

Registration is not a one-off certificate. Ofgem's post-registration guidance says operators and suppliers must keep information current and report material changes. Examples include a transfer of operator or supplier responsibility, adding or removing a building or energy centre, changing fuel or technology, or starting to serve a different type of customer.

Add a heat-network checkpoint to acquisitions, disposals, management handovers, major works and new resident billing arrangements. When a residential block is sold, the transfer of operator or supplier responsibility needs its own owner and deadline. Do not assume the property sale automatically updates Ofgem's record.

Ofgem also says registered operators and suppliers will submit data quarterly and annually. Its data-reporting guidance explains that requests for information and reporting windows follow registration. Keep customer, metering, billing and network records in a form that can be reconciled to the submitted registration rather than rebuilding them for each request.

A workable 90-day plan

In the first fortnight, complete the portfolio search and assign an owner to every possible network. During the next month, settle scope and role questions, nominate regulatory contacts and create accounts. Use the following month to assemble network data, invite separate suppliers and test consumer-protection cases. Leave the final weeks for review, correction and submission rather than treating 26 January as the day to begin.

Place this work beside the broader landlord compliance checklist, but keep the jurisdictions and responsible entities distinct. For building energy performance, use the separate EPC requirements guide; an EPC does not answer whether a communal heat network is in scope or who must register it.

This article covers the Ofgem framework in Great Britain and reflects official material available on 12 October 2026. Check the live guidance and the final outcome of the October authorisation consultation before commissioning a new network. For a portfolio-wide process, see Tekniti's letting agency offering. Keep a named regulated entity, the evidence behind the submitted record and an operational queue for the duties that continue after registration.