Doulton Bridging Finance
New Build Mortgages — Shared Ownership

Shared Ownership New Build Mortgage 2026 — Buy a Share, Mortgage the Rest

Shared ownership new build mortgage 2026 — buy 10%–75%, 5% deposit on share, staircasing explained. Income cap £80,000/£90,000 London. Doulton Bridging Finance.

Shared Ownership lets you buy between 10% and 75% of a new build property, with a mortgage covering your purchased share and subsidised rent paid on the remainder to the housing association. The deposit is 5% of the share you are buying — not of the full property value — making shared ownership one of the most accessible routes to new build homeownership. DBF arranges shared ownership mortgages across all participating developments.

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10%–75%
Share you can buy initially — staircase to full ownership over time
5%
Minimum deposit on your purchased share (not on full property value)
£80,000
Household income cap outside London; £90,000 in London
Staircasing
Buy additional shares over time — eventually own 100%
Current rates · Updated August 2026Residential Mortgage Rates 2026UK residential mortgage rates in 2026 range from 4.33% for the best 2-year fix (Danske Bank, 60% LTV, August 2026) to above 6% for high-LTV or complex income cases.
View the rate guide
NEW BUILD MORTGAGES — SHARED OWNERSHIP

How shared ownership works

You buy a share of a new build property from a housing association. A mortgage covers your share (less deposit). You pay subsidised rent to the housing association on the remaining share they own. Over time, you can buy additional shares (staircase) until you own 100%. The housing association sets the initial share size — usually you can choose between 10% and 75% at first purchase, subject to affordability assessment.

Eligibility for shared ownership

You must not currently own a property. Household income must be below £80,000 (outside London) or £90,000 (in London). You must not be able to afford a full purchase on the open market (assessed by the housing association). Some developments prioritise local connections or key workers. The Deposit Unlock scheme for shared ownership is a separate mechanism — DBF advises on eligibility for your specific development.

Staircasing — buying more shares

You can buy additional shares (staircase) in increments of as little as 1% from some housing associations, or in larger tranches (typically 10%). When you staircase, you pay the market value of the shares at the time of purchase — not the original purchase price. As property values rise, staircasing becomes more expensive. Once you own 100%, the rent element disappears and you hold the property as full owner. DBF arranges the remortgage needed when you staircase.

Cannot combine with Rate Reducer or First Homes

Shared ownership cannot be combined with Own New Rate Reducer or First Homes. MGS is also not available alongside shared ownership. The shared ownership structure itself provides the affordability advantage — additional schemes are not permitted.

Shared Ownership — Monthly Cost Breakdown Example August 2026

Cost elementCalculationExample (£300k property, 40% share)
Purchase price of share40% of £300,000£120,000
Deposit (5% of share)5% of £120,000£6,000
Mortgage£120,000 - £6,000 = £114,000 at 4.45% (2yr fix)£571/month
Rent on remaining share60% × £300,000 = £180,000. Subsidised rent ~2.75%£412/month
Service charge (typical flat)Annual £2,400 ÷ 12£200/month
Total monthly housing costMortgage + rent + service charge£1,183/month

Worked example

Shared ownership purchase — £285,000 new build flat. Buying 40% share.

  • Share: £114,000. Deposit (5%): £5,700. Mortgage: £108,300.
  • Lender: Nationwide. Rate: 4.45% (2yr fix). Monthly mortgage: £542.
  • Rent (subsidised, 2.75% on £171,000): £392/month.
  • Service charge: £175/month.
  • Total monthly: £1,109.
  • After 3 years: staircase to 70% (buy additional 30% at updated market value).
  • Market value at staircasing: £310,000. Additional 30% share: £93,000.
  • DBF remortgages: new mortgage covers 70% share (£217,000 total). Rent reduces to 30% of property value.
The Process

How it works

01

Tell us about your purchase

Share the property details, development, scheme type (Rate Reducer, MGS, shared ownership), and your deposit. We assess your situation same working day.

02

Lender search and scheme check

We identify which lenders accept your income type, development, and property classification — including Rate Reducer and MGS eligibility where relevant.

03

Application and valuation

We manage the full application, coordinate the RICS valuation, and liaise with the developer on build schedule and offer validity.

04

Mortgage offer and completion

Once the offer is issued, we monitor build progress, manage any extensions needed for off-plan delays, and coordinate completion.

FAQs

Frequently asked questions

How much deposit do I need for shared ownership?

5% of the share you are purchasing — not of the full property value. On a £285,000 property where you buy 40% (£114,000), the deposit is £5,700. This makes shared ownership one of the most accessible deposit routes to homeownership.

Can I get a shared ownership mortgage on a new build?

Yes — shared ownership is specifically designed for new builds and some resale properties. DBF arranges shared ownership mortgages on new build properties across all major housing association developers.

What happens when I want to buy more of my shared ownership property?

You staircase by purchasing additional shares at the market value at the time of purchase. As property values increase, each staircase tranche costs more. DBF arranges the remortgage needed with each staircasing transaction.

Does the rent increase over time?

Yes — shared ownership rent typically increases annually, usually in line with RPI+0.5% or similar. This is specified in your lease. As you staircase and own more of the property, the rent on the remaining share reduces.

Can I eventually own 100% of a shared ownership property?

Yes — you can staircase to 100% ownership on most shared ownership properties. At 100%, the rent element disappears and you own the property outright. The final staircase tranche typically requires a remortgage to cover the full property value.

Related finance

Explore related pages

New Build Mortgages Hub

New build mortgages 2026 — specialist whole-of-market broker. Lower LTV, scheme expertise, off-plan offer validity, Own New Rate Reducer.

New Build Mortgage for FTBs

New build mortgage for first-time buyers 2026 — 5% deposit routes, stamp duty relief, Own New Rate Reducer, LISA bonus. Approved Own New broker.

Shared Ownership Mortgage Guide

Shared ownership mortgage guide 2026 — how the mortgage is calculated, staircasing, service charges, resale restrictions, which lenders accept…

How Much Deposit for a New Build?

How much deposit for a new build mortgage 2026 — houses vs flats, 5% routes, incentive impact, LISA boost, worked examples at £250k, £350k, £500k.

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