Bank of England governor Mark Carney has said he is concerned about the "potential" for a UK housing market bubble, but will tighten lending requirements if necessary.
"There is a history in the housing market of moving from stall speed to warp speed," Mr Carney said. "We want to avoid that."
Meanwhile, a survey suggested house prices will continue "surging ahead".
A separate forecast said borrowing would rise.
Mr Carney was speaking at the Economic Club of New York.
His speech came as the Royal Institution of Chartered Surveyors (Rics) found that more surveyors expected prices to rise than at any time in the last 14 years.
A separate forecast by mortgage lenders predicted that borrowing would keep increasing in 2014.
But the Council of Mortgage Lenders (CML) added an "unbridled" housing boom was "unlikely".
The last time such a clear majority of surveyors expected price rises was in September 1999
There are only three months remaining of the Stamp Duty "Tax Holiday" before first-time buyers will have to once again pay Stamp Duty Land Tax on their home purchase, the National Association of Estate Agents (NAEA) has warned.
Chief Executive Peter Bolton King said: "From March 2012 the holiday is well and truly over for first-time buyers. Once the Government ends the tax exemption, FTBs will face a tax of 3% on all home purchases over £250,000."
"With many first-time buyers trying to purchase their first home before the tax exemption deadline, our members will be working closely with those first-time buyers who are able to purchase before March 2012 to guide them through a difficult and challenging market place."
With three months remaining until the Stamp Duty Land Tax exemption for FTBs comes to an end, the NAEA has issued new advice for FTBs:
1 Stay affordable
The key word for lender is affordability, and it should be for you as well. The amount you can borrow from a lender should depend on how much you can afford to repay each month. But when deciding on your budget, remember that what seems affordable at the time of purchase might not be so affordable once interest rates move or your employment situation changes.
2 Don't forget about fees
Experienced home buyers will remember to include professional costs in their budget, but when buying your first home it can be easy to forget the need to set aside cash for fees to lenders, insurers, surveyors, and other professionals.
3 Choose the professionals
When buying your first home remember to think about who is selling it to you. Buying your first home can often be a stressful experience, as well as the biggest financial transaction of a person's life. Choose an NAEA Member and make this process as stress free as possible. More and more NAEA members are becoming licensed, in order to protect buyers and sellers and raise standards in the industry. The NAEA licence is also supported by the Government, and so you should always look for the NAEA licence logo when buying your home.
4 Keep a paper trail
There can be a lot of paper to keep track of when buying a home, but it's important to keep an organised file with all your documents associated with the purchase in it. For FTBs it is also sensible to keep detailed notes about the properties that you've viewed including important information such as possible repairs needed to the kitchen or bathroom as these can eat significantly into your budget if urgent work is required.
5 Know your maximum offer
When you've made your mind up, and it is time to put in an offer, always remember what your maximum offer is. The amount you decide to open with is vital, so work out what your absolute maximum purchase price and then work backwards. If your first bid is turned down, then be flexible where possible with your second offer, but don't automatically jump to your maximum affordability. Meeting the buyer half-way can be a good response to show you are serious.
Source: NAEA, Property Talk Live